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A

  • Adaptive Control Brazing (B-AD)See adaptive control which the weld is made in the flat, vertical, and over-process.
  • Adaptive Control Soldering (S-AD)See adaptive con-A trol process.
  • Adaptive Control Thermal Cutting (TC-AD)See adap-ing which surface wetting is enhanced by abrading the tive control process.
  • Adaptive Control Welding (W-AD)See adaptive control particles.
  • AdhesiveA polymeric material having chemical and effects of transmitted and reflected light.
  • Adhesive BondAn attraction, generally physical in acceptable weld.
  • Air Acetylene Welding (AAW)An oxyfuel gas welding welding parameters, especially arc voltage.
  • Air Carbon Arc Cutting (CAC-A)A carbon arc cutting.
  • Arc ForceThe axial force developed by arc plasma.
  • Air Carbon Arc Cutting TorchA device used to transfer current to a fixed cutting electrode, position the elec-.
  • Arc GougingThermal gouging using an arc cutting pro-trode, and direct the flow of air.
  • Air FeedA thermal spraying process variation in which.
  • Arc LengthThe distance from the tip of the welding elec-an air stream carries the powdered surfacing material trode to the adjacent surface of the weld pool.
  • Aligned DiscontinuitiesThree or more discontinuities cutting.
  • Arc PlasmaA gas heated by an arc to at least a partially spaced sufficiently close together to be considered a ionized condition, enabling it to conduct an electric single intermittent discontinuity.
  • Aligned PorosityA localized array of porosity oriented arc seam weld.
  • AlloyA substance with metallic properties and com-.
  • Arc Seam Weld SizeSee seam weld size.
  • Arc Spot Weld SizeSee spot weld size.
  • Arc SprayerSee thermal sprayer.
  • Alloy PowderPowder prepared from a homogeneous an arc between two consumable electrodes of sur-molten alloy or from the solidification product of such facing materials as a heat source and a compressed an alloy.
  • Angle Of BevelSee bevel angle.
  • ArcSee welding arc.
  • Arc Spraying OperatorSee thermal spraying operator.
  • Arc BlowThe deflection of an arc from its normal path.
  • Arc StrikeA discontinuity resulting from an arc, consist-due to magnetic forces.
  • Arc Stud Welding (SW)An arc welding process using an arc between a metal stud, or similar part, and the other arc chamber.
  • Arc CutterSee thermal cutter.
  • Arc Cutting (AC)A group of thermal cutting processes sure after the faying surfaces are sufficiently heated.
  • Arc TimeThe time during which an arc is maintained in making an arc weld.
  • Automatic Arc Welding Downslope TimeThe time dur-weight of filler metal deposited in the weld metal to ing which the current is changed continuously from the weight of filler metal melted, expressed in percent.
  • Arc Welding GunA device used to transfer current to a automatic arc welding weld time.
  • Arc Welding TorchA device used to transfer current to a Figures B.
  • Automatic Brazing (B-AU)See automatic process.
  • ArmA beam extending from the frame of a resistance oxygen cutting.
  • AssemblyOne or more components, members, or parts fit ing.
  • Assist GasA gas used to blow molten metal away to process, and semiautomatic process.
  • Automatic Soldering (S-AU)See automatic process.
  • Automatic Welding (W-AU)See automatic process.
  • Atomic Hydrogen Welding (AHW)An arc welding pro-.
  • Auxiliary MagnifierAn additional lens used to magnify cess using an arc between two metal electrodes in a the field of vision.
  • Axis Of WeldSee weld axis.
  • Autogenous WeldA fusion weld made without filler metal.
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B

  • Back BeadA weld bead resulting from a back weld automatic, adj.
  • Back CapA device used to exert pressure on the collet in no manual adjustments during its operation.
  • Back WeldA weld made at the back of a single groove welding circuit during the making of a weld, but weld.
  • Back Weld PassA weld pass resulting in a back weld.
  • BackfireThe momentary recession of the flame into the balling up, brazing and soldering.
  • Bare ElectrodeA filler metal electrode produced as a nite at the end of the tip.
  • BackgougingThe removal of weld metal and base metal.
  • Bare Metal Arc Welding (BMAW)An arc welding pro-from the weld root side of a welded joint to facilitate cess using an arc between a bare or lightly coated complete fusion and complete joint penetration upon electrode and the weld pool.
  • Base MaterialThe material being welded, brazed, sol-angle, forehand welding, push angle, travel angle, dered, or cut.
  • Base MetalThe metal or alloy being welded, brazed,.
  • BackingA material or device placed against the back soldered, or cut.
  • Backing BeadA weld bead resulting from a backing cutting.
  • BeadSee weld bead.
  • Backing RingBacking in the form of a ring, generally.
  • Beam DivergenceThe expansion of a beam’s cross sec-used in the welding of pipe.
  • Backing ShoeA barrier device used in electroslag and.
  • Bend TestA test in which a specimen is bent to a speci-electrogas welding to contain the weld without being fied bend radius.
  • Backing WeldBacking in the form of a weld.
  • BevelAn angular edge shape.
  • Backing Weld PassA weld pass resulting in a backing weld.
  • Bevel AngleThe angle between the bevel of a joint member and a plane perpendicular to the surface of.
  • Backstep SequenceA longitudinal sequence in which the member.
  • Bevel FaceThe prepared surface of a bevel edge shape.
  • Backup ElectrodeAn electrode having a large electrode and root face.
  • Bevel-groove WeldA type of groove weld.
  • BitPart of the soldering iron, usually made of copper, soldering, and welding.
  • Bonding ForceThe attractive force holding atoms together.
  • Blanket BrazingA brazing process variation employing a.
  • BoxingThe continuation of a fillet weld around a corner flexible, resistance-heated blanket(s) as the heat source.
  • BlastingSee abrasive blasting.
  • Blind JointA joint, no portion of which is visible.
  • Braze InterfaceThe boundary between braze metal and in which separated segments are completely or par-base material in a brazed joint.
  • Braze MetalThe portion of a braze that has been melted sectional sequence, progressive block sequence, and during brazing.
  • BlowpipeSee brazing blowpipe, soldering blowpipe, also arc braze welding, carbon arc braze welding, and welding blowpipe.
  • BondSee covalent bond, ionic bond, mechanical ing, flow welding, and laser beam braze welding.
  • BrazeabilityThe capacity of a material to be brazed bond bar.
  • Brazed JointA joint that has been brazed.
  • BrazementAn assembly joined by brazing.
  • BrazerOne who performs manual or semiautomatic interface between a thermal spray deposit and the sub-brazing.
  • Brazing (B)A group of joining processes producing the bond specimen, thermal spraying.
  • Brazing BlowpipeA device used to obtain a small, and rules for their application, refer to AWS A2.
  • Brazing TapeBrazing strip with an applied adhesive.
  • Brazing Filler MetalThe metal or alloy to be added in.
  • Brazing TechniqueDetails of the brazing operation making a brazed joint.
  • Brazing TemperatureThe base material temperature(s) metal paste, brazing powder, brazing rod, brazing at which a braze can be accomplished.
  • Brazing WireA solid or flux cored form of brazing filler and brazing wire.
  • Brazing FoilBrazing filler metal in thin sheet form.
  • Brazing FluxA flux used for brazing.
  • BuildupA surfacing variation in which surfacing mate-flux.
  • Brazing OperatorOne who operates automatic or mech-See also buttering, cladding, and hardfacing.
  • Brazing ProcedureThe detailed methods and practices burning.
  • Burn-throughA hole or depression in the root bead of a specification.
  • Brazing RodA form of solid or flux cored brazing filler burn-through weld.
  • Butt JointA joint type in which the butting ends of one.
  • Brazing RopeBrazing powder held in an extruded form or more workpieces are aligned in approximately the by a plastic binder.
  • Brazing SheetBrazing powder held in sheet form by a skewed joint.
  • ButteringA surfacing variation depositing surfacing brazing strip.
  • Brazing SymbolA graphical representation of the speci-pletion of the weld.
  • Butting MemberA joint member prevented, by the carbon-rich zone extending around and beyond the cone.
  • ButtonPart of a weld, including all or part of the nugget, cascade sequence.
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C

  • Carrier GasThe gas used to transport powdered material joint or corner joint.
  • CaulkingPlastic deformation of weld and adjacent base cap, resistance welding.
  • Capillary ActionThe force by which liquid in contact ceramic rod flame spraying.
  • Chain Intermittent WeldAn intermittent weld on both process variation using an arc between a carbon elec-sides of a joint in which the weld segments on one trode and the base metal as the heat source.
  • Chemical-bath Dip BrazingA dip brazing process vari-twin carbon arc brazing.
  • Carbon Arc Gouging (CAG)A thermal gouging process ring.
  • Clad Brazing SheetA metal sheet on which one or both and twin carbon arc welding.
  • Carbon ElectrodeA nonfiller metal electrode used in arc welding and cutting, consisting of a carbon or graph-.
  • Clad MetalA laminar composite consisting of a metal or ite rod, which may be coated with copper or other alloy, with a metal or alloy of different chemical com-materials.
  • CladdingA surfacing variation depositing or applying surfacing material usually to improve corrosion or which there is an excess of fuel gas, resulting in a 9 AWS A3.
  • Cluster PorosityA localized array of porosity having a and B.
  • CoalescenceThe growing together or growth into one body of the materials being joined.
  • Commutator-controlled WeldingA resistance spot or coated electrode.
  • Complete FusionFusion over the entire fusion faces and between all adjoining weld beads.
  • Coil Without SupportA filler metal packaging configu-which weld metal extends through the joint thickness.
  • Cold Brazed JointA brazed joint with incomplete metal-weld.
  • CompositeA material consisting of two or more discrete materials with each material retaining its physical.
  • Cold CrackA crack occurring in a metal at or near ambi-identity.
  • Composite ElectrodeA generic term for multicompo-nent filler metal electrodes in various physical forms cold lap.
  • Concave Fillet WeldA fillet weld having a concave face.
  • CollarThe reinforcing metal of a nonpressure thermite weld exhibiting underfill at the root surface.
  • ConcavityThe maximum distance from the face of a contact tip setback, flux cored arc welding and gas metal arc welding.
  • Concurrent HeatingThe application of supplemental contact tube.
  • ConeThe conical part of an oxyfuel gas flame adjacent contact tube setback.
  • Constant Current Power SourceAn arc welding power continuous sequence.
  • Constant Voltage Power SourceAn arc welding power.
  • Continuous Wave LaserA laser having an output operat-source with a volt-ampere relationship yielding a ing in a continuous rather than a pulsed mode.
  • Constricted ArcA plasma arc column shaped by the constricting orifice in the nozzle of the plasma arc.
  • Continuous WeldA weld extending continuously from torch or plasma spraying gun.
  • Constricting NozzleA device at the exit end of a plasma joint.
  • Constricting OrificeThe hole in the constricting nozzle of the plasma arc torch or plasma spraying gun.
  • Convex Root SurfaceThe configuration of a groove weld through which the arc plasma passes.
  • Constricting Orifice Diameter.
  • ConvexityThe maximum distance from the face of a.
  • Constricting Orifice Lengthconvex fillet weld perpendicular to a line joining the weld toes.
  • Consumable ElectrodeAn electrode providing filler metal.
  • Consumable Guide Electroslag Welding (ESW-CG)An Figures B.
  • Consumable InsertFiller metal placed at the joint root cord, thermal spraying.
  • Cored SolderA solder wire or bar containing flux as a flow of electric current through faying surfaces of core.
  • Corner JointA joint type in which butting or nonbutting surfaces of components in the secondary circuit.
  • Cross Wire WeldingA projection welding joint design in corner-flange weld.
  • Corrective LensA lens ground to the wearer’s individual to the cross section of the weld.
  • CutterSee thermal cutter.
  • Cosmetic Weld PassA weld pass resulting in a cosmetic.
  • CuttingSee thermal cutting.
  • Cutting AttachmentA device for converting an oxyfuel.
  • Covalent BondA primary bond arising from the reduc-gas welding torch into an oxyfuel gas cutting torch.
  • Cover BeadA weld bead resulting from a cover pass.
  • Cutting ElectrodeA nonfiller metal electrode used in arc cover lens.
  • Cover PassA weld pass or passes resulting in the and tungsten electrode.
  • Cutting HeadThe part of a cutting machine in which a which welding was done.
  • Cover PlateA removable pane of colorless glass, plas-cutting nozzle.
  • Cutting OperatorSee thermal cutting operator.
  • Covered ElectrodeA composite filler metal electrode consisting of a bare or metal cored electrode with a.
  • Cutting TipThe part of an oxyfuel gas cutting torch from flux covering sufficient to provide a slag layer and/or which the gases issue.
  • Cutting TorchSee air carbon arc cutting torch, gas
  • CrackA fracture-type discontinuity characterized by a tungsten arc cutting torch, oxyfuel gas cutting sharp tip and high ratio of length and width to opening torch, and plasma arc cutting torch.
  • CycleThe duration of one waveform period.
  • CraterA depression in the weld face at the termination.
  • CylinderSee gas cylinder.
  • Cylinder ManifoldA header for interconnection of mul-.
  • Crater CrackA crack initiated and localized within a tiple gas sources with distribution points.
  • C1.3 FormatThe format of the presented terms is such Both standard and nonstandard jargon, as well as dialect that: and vernacular terms, are considered for inclusion in A3.
  • C1.1 Incorporated TermsAny term which conforms to use of boldface type is restricted to standard terms when the definition given in Clause 3, and they are: (1) Which does not conflict with other established (a) The term being defined, A3.
  • C1.5 Committee DecisionsFor various factors, such as gas tungsten arc welding, with modifiers to denote the entrenched use, disagreement among our own members, variations of the processes.
  • C1.5.4 WelderThe use of the term welder to indicate standard welding terminology.
  • C2.1 PurposeDefinitions should: for Calibrating Magnetic Instruments to Measure the (1) Include as many uses as possible, while still Delta Ferrite Content of Austenitic and Duplex Ferritic-retaining clarity and accuracy, but should not be Austenitic Stainless Steel Weld Metal.
  • C2.3 FormatDefinitions include only defined terms (in or specifications, but rather, are intended to ensure that either A3.
  • C2.4 Committee DecisionsThe word “deposit,” or any sonal safety, the term is identified as both nonstandard of its derivatives, is used only in connection with the and incorrect.
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D

  • Dip Brazingemploying a carbon electrode.
  • DefectA discontinuity or discontinuities that by nature but prior to meltback time during which arc voltage or or accumulated effect render a part or product unable current reach a preset value greater or less than weld-to meet minimum applicable acceptance standards or ing values.
  • DilutionThe change in chemical composition of a weld-metal added during brazing, soldering or welding.
  • Deposition EfficiencySee arc welding deposition effi-
  • Dip Brazing (DB)A brazing process using heat from a ciency and thermal spraying deposition efficiency.
  • Deposition RateThe weight of material deposited in a metal-bath dip brazing, and salt-bath dip brazing.
  • Depth Of BevelThe perpendicular distance from the base metal surface to the root edge or the beginning of the dip soldering (DS).
  • Detonation Flame SprayingA thermal spraying process variation in which the controlled explosion of a mix-direct current electrode negative (DCEN).
  • Diffusion AidA solid filler metal applied to the faying.
  • Direct Drive Friction Welding (FRW-DD)A variation of surfaces to assist in diffusion welding.
  • Diffusion Welding (DFW)A solid-state welding process.
  • DiscontinuityAn interruption of the typical structure of producing a weld by the application of pressure at ele-a material, such as a lack of homogeneity in its 13 AWS A3.
  • Double-square-groove WeldA weld in a square groove mechanical, metallurgical, or physical characteristics.
  • double-U GrooveA double-sided weld groove formed by the combination of butting members having dou-dissolution, brazing.
  • Double-U-groove WeldA weld in a double-U groove welded from both sides.
  • Double ArcingA condition in which the welding or cut-ting arc of a plasma arc torch does not pass through.
  • double-V GrooveA double-sided weld groove formed the constricting orifice but transfers to the inside sur-by the combination of butting members having double-face of the nozzle.
  • Double-V-groove WeldA weld in a double-V groove and the workpiece.
  • Double-bevel GrooveA double-sided weld groove dovetailing, thermal spraying.
  • Double-bevel-groove WeldA weld in a double-bevel-groove welded from both sides.
  • Double-flare-bevel GrooveA double-sided weld groove.
  • Downslope TimeSee automatic arc welding down-formed by the combination of a butting member hav-slope time and resistance welding downslope time.
  • Double-flare-bevel-groove WeldA weld in a double-cutting beam measured on the exit surface of the base flare-bevel groove welded from both sides.
  • Drag AngleThe travel angle when the electrode is point-.
  • Double-flare-V GrooveA double-sided weld groove ing in a direction opposite to the progression of weld-formed by the combination of butting members hav-ing.
  • Double-flare-V-groove WeldA weld in a double-flare-travel angle, and work angle.
  • Drop-throughAn undesirable sagging or surface irregu-double-groove weld, fusion welding.
  • double-J Edge ShapeA type of edge shape having two metal and the base metal.
  • double-J GrooveA double-sided weld groove formed adjacent to the cut surface.
  • DrumA cylindrical filler metal package used to contain ble-J edge shape abutting a planar surface of a com-a continuous length of wound or coiled filler metal wire.
  • Duty CycleThe percentage of time during a specified.
  • Double-J-groove WeldA weld in a double-J groove test period that a power source or its accessories can welded from both sides.
  • Double-spliced Butt JointSee spliced joint.
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E

  • ElectrodeA component of the secondary circuit termi-surfacing material is exposed to the heat zone of the nating at the arc, molten conductive slag, or base metal.
  • Electrode CapA replaceable electrode adapter tip used trode force, and theoretical electrode force.
  • Edge JointA joint type in which the nonbutting ends of the end of the contact tip.
  • Edge PreparationThe preparation of the edges of the electrode face, resistance welding.
  • Edge ShapeThe shape of the edge of the joint member.
  • Edge WeldA weld in an edge joint, a flanged butt joint or a flanged corner joint in which the full thickness of electrode holder, resistance welding.
  • Edge Weld SizeThe weld metal thickness measured from electrode indentation, resistance welding.
  • Electrode LeadA secondary circuit conductor transmit-ting energy from the power source to the electrode effective throat.
  • Electrode SetbackThe distance the electrode is recessed electron beam welding, and nonvacuum electron beam welding.
  • Electroslag Welding (ESW)A welding process produc-of the constricting nozzle.
  • Electroslag Welding ElectrodeA filler metal component using an arc between a continuous filler metal elec-of the welding circuit through which current is con-trode and the weld pool, employing approximately ducted from the electrode guiding member to the mol-vertical welding progression with backing to confine ten slag.
  • Elongated PorosityA form of porosity having a length out the application of pressure.
  • Electron Beam Braze Welding (EBBW)A braze weld-ing process variation employing a defocused or oscil-.
  • Emissive ElectrodeA filler metal electrode consisting of lating electron beam as the heat source.
  • Electron Beam Brazing (EBB)A brazing process using heat from a slightly defocused or oscillating electron end return.
  • Exhaust BoothA mechanically ventilated, semi-cess severing metals by melting them with the heat from a concentrated beam, composed primarily of enclosed area in which an air flow across the work high-velocity electrons, impinging on the workpiece.
  • Electron Beam GunA device for producing and acceler-vided as a reaction product.
  • Exothermic Brazing (EXB)A brazing process using an produce electrons via thermionic emission, a cup (also called the grid or grid cup), and the anode.
  • Electron Beam Gun ColumnThe electron beam gun plus preplaced.
  • Electron Beam Welding (EBW)A welding process pro-workpieces as the result of controlled detonation.
  • E2.2 Purpose Of The InquiryThe purpose of the inquiry tors has adopted a policy whereby all official interpreta-shall be stated in this portion of the inquiry.
  • E2.1 ScopeEach inquiry shall address one single provi-Following the subcommittee’s development of the sion of the standard unless the point of the inquiry response, the inquiry and the response are presented to involves two or more interrelated provisions.
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F

  • Filler MaterialThe material to be added in making a brazed, soldered, or welded joint.
  • Filler MetalThe metal or alloy to be added in making a brazed, soldered, or welded joint.
  • Face Crackwelding rod, and welding wire.
  • Filler Metal PowderFiller metal in particle form.
  • Filler Metal Start Delay TimeThe time interval from arc.
  • Face Of WeldSee weld face.
  • Face ReinforcementWeld reinforcement on the side of ure B.
  • Face ShieldA device positioned in front of the eyes and metal feeding.
  • Faying SurfaceThe mating surface of a workpiece in filler wire.
  • FeatherSee acetylene feather.
  • Fillet WeldA weld of approximately triangular cross sec-feed rate, thermal spraying.
  • Fillet Weld LegThe distance from the joint root to the toe of the fillet weld.
  • Fillet Weld SizeFor equal leg fillet welds, the leg lengths of the largest isosceles right triangle that can be.
  • Field WeldA weld made at a location other than a shop inscribed within the fillet weld cross section.
  • Fill WeldA fusion weld made with filler metal.
  • FillerSee joint filler.
  • Filter PlateAn optical material protecting the eyes the joint.
  • Flanged Corner JointA form of a corner joint in which.
  • Final CurrentThe current after downslope but prior to the butting member has a flanged edge shape at the current shut-off.
  • Final Taper CurrentThe current at the end of the taper interval prior to downslope.
  • Flanged Edge JointA form of an edge joint in which at least one of the members has a flanged edge shape at.
  • FinesParticles of flux or filler metal having a size the joint.
  • Flanged Edge ShapeA type of edge shape produced by.
  • Firecracker WeldingA shielded metal arc welding pro-forming the member.
  • Flanged JointA form of one of the five basic joint types workpieces during welding.
  • Flanged Lap JointA form of a lap joint in which at least.
  • FisheyeA discontinuity, attributed to the presence of one of the members has a flanged edge shape at the hydrogen in the weld, observed on the fracture surface joint, and an edge weld is not applicable.
  • Flanged T-jointA form of a T-joint in which the butting member has a flanged edge shape at the joint, and an fit, v.
  • FitterOne who fits the workpiece(s) in preparation for.
  • Flare-bevel-groove WeldA weld in the groove formed joining.
  • FitupThe as-fit joint geometry.
  • FixtureA device designed to maintain the fit work-piece(s) in the proper relationship.
  • Flare-groove WeldA weld in the groove formed between a joint member with a curved surface and flame cutting.
  • Flame Propagation RateThe speed at which flame trav-members with curved surfaces.
  • Flame SprayerSee thermal sprayer.
  • Flare-V-groove WeldA weld in a groove formed by two members with curved surfaces.
  • Flame Spraying (FLSP)A thermal spraying process in B.
  • Flame Spraying OperatorSee thermal spraying opera-weld joint by expulsion or extrusion.
  • FlameSee carburizing flame, neutral flame, oxidizing flame, and reducing flame.
  • Flash TimePeriod of the flash welding cycle during which flashing action occurs.
  • FlashbackThe recession of the flame through the torch flux coated rod, brazing.
  • Flashback ArresterA device to limit damage from a shielding gas from a flux contained within the tubular flashback by preventing propagation of the flame electrode, with or without additional shielding from front beyond the location of the arrester.
  • Flashing ActionThe phenomenon in flash welding tion of pressure.
  • Flat PositionSee flat welding position.
  • Flux Cored Soldering Filler MetalSoldering filler rod or the upper side of the joint resulting in the face of the wire containing a flux.
  • Flat Welding PositionThe welding position used to weld layer of molten flux over the molten filler metal bath.
  • FlawAn undesirable discontinuity.
  • Flow Brazing (FLB)A brazing process using heat from the highest energy density.
  • Forehand WeldingA welding technique in which the filler metal coating on a base metal to improve its welding torch or gun is directed toward the progress finish.
  • Flow Welding (FLOW)A braze welding process varia-travel angle, and work angle.
  • Forge ForceA compressive force applied to the weld, faces as the heat source.
  • FluxA material applied to the workpiece(s) before or See also cold welding, diffusion welding, and hot pressure welding.
  • Fusion WeldingAny welding process using fusion of the rotating tool traversing the weld joint.
  • Friction Upset DistanceThe decrease in length of work-pieces during the time of friction welding force appli-.
  • Fusion ZoneThe area of base metal melted as deter-cation.
  • Friction Welding (FRW)A solid-state welding process producing a weld under the compressive force contact G of workpieces rotating or moving relative to one gap.
  • Friction Welding ForceThe compressive force applied to ing process variation employing a shielding gas.
  • Fuel GasA gas, when mixed with air or oxygen and gas cutting.
  • Full Fillet WeldA fillet weld equal in size to the thick-.
  • Furnace Soldering (FS)A soldering process using heat This device is primarily used for gas tungsten arc from a furnace or oven.
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G

  • Gas Carbon Arc Welding (CAW-G)A carbon arc weld-.
  • Gas CylinderA portable container used for transporta-spraying.
  • Gas GeneratorEquipment producing a gas for joining or ness of the thinner member joined.
  • Gas LaserA laser in which the lasing medium is a gas.
  • Gas LensOne or more fine mesh screens located in the furnace.
  • Gas Metal Arc Cutting (GMAC)An arc cutting process duced by mixing the ingredients followed by melting, employing a continuous consumable electrode and a cooling to the solid state and processing to produce shielding gas.
  • Gas Metal Arc Welding (GMAW)An arc welding pro-trode across the arc.
  • GogglesProtective glasses equipped with filter plates set shielding from an externally supplied gas and without in a frame fitting snugly against the face and used the application of pressure.
  • GougingSee thermal gouging.
  • Gas NozzleA device at the exit end of the torch or gun workpiece thickness on which the required weld nug-that directs shielding gas.
  • Gradated Thermal Spray DepositA composite thermal gas pocket.
  • Gas RegulatorA device for controlling the delivery of sive layers progressively changing in composition gas at some substantially constant pressure.
  • Gas Shielded Arc WeldingA group of processes includ-ing electrogas welding, flux cored arc welding, gas groove and rotary roughening, thermal spraying.
  • Gas Shielded Flux Cored Arc Welding (FCAW-G)A flux rotary roughening, and threading and knurling.
  • Groove AngleThe included angle between the groove to that obtained from the flux within the electrode.
  • Groove FaceAny surface in a weld groove prior to weld-ing.
  • Gas Tungsten Arc Cutting TorchA device used to trans-fer current to a fixed cutting electrode, position the.
  • Groove WeldA weld in a weld groove on a workpiece electrode, and direct the flow of shielding gas.
  • Gas Tungsten Arc Welding (GTAW)An arc welding pro-faces.
  • Groove Weld SizeThe joint penetration of a groove weld.
  • Gas Tungsten Arc Welding TorchA device used to trans-.
  • Ground ConnectionAn electrical connection of the fer current to a fixed welding electrode, position the welding machine frame to the earth for safety.
  • GetterA material, such as hot titanium or zirconium,.
  • GunSee arc cutting gun, arc welding gun, electron used to purify vacuum or inert gas atmospheres by beam gun, resistance welding gun, soldering gun, absorbing or reacting with impurities.
  • Gun ExtensionThe extension tube attached in front of globular transfer, gas metal arc welding.
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H

  • Heating TorchA device for directing the heating flame produced by the controlled combustion of fuel gases.
  • HelmetSee welding helmet.
  • High Energy Beam Cutting (HEBC)A group of thermal.
  • Hand ShieldA protective device used in arc cutting, arc cutting processes severing or removing material by welding, and thermal spraying, for shielding the eyes, localized melting, burning or vaporizing of the work-face, and neck.
  • High Energy Beam Welding (HEBW)A group of weld-hand soldering.
  • HardfacingA surfacing variation in which surfacing during the high pulse time producing the high heat material is deposited to reduce wear.
  • HeadSee cutting head and welding head.
  • Heat BalanceThe various material, joint, and welding high vacuum electron beam welding (EBW-HV).
  • Heat InputThe energy applied to the workpiece during welding.
  • Heat Input RateThe heat input per unit length of weld.
  • Heat PatternThe shape of the heat distribution in a high-frequency resistance welding.
  • Heat TimeThe duration of any one impulse in multiple-at the desired location.
  • Heat-affected Zone CrackA crack occurring in the heat-induction seam welding.
  • Heating GateThe opening in a thermite mold through welding process variation in which welding current of which the workpieces are preheated.
  • Hot Wire WeldingA variation of a fusion welding pro-and resistance spot welding.
  • Hybrid WeldingThe combination of two or more weld-ing processes applied concurrently to produce a weld hollow bead.
  • Horizontal PositionSee horizontal welding position.
  • HornAn extension of the arm of a resistance welding flux, tungsten, or oxide.
  • Hot CrackA crack occurring in a metal during solidifi-fusion did not occur between the weld metal and the cation or at elevated temperatures.
  • Hot Start CurrentA very brief current pulse at arc initia-from application points away from the weld zone.
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I

  • InclusionEntrapped foreign solid material, such as slag,.
  • Infrared Soldering (IRS)A soldering process in which from the resistance of the assembly to the induced the heat required is furnished by infrared radiation.
  • Initial CurrentThe current after starting, but before establishment of welding current.
  • Induction CoilElectrical conductor transmitting high-frequency energy from an induction power source to a insulating nozzle, self-shielded flux cored arc welding.
  • InterfaceSee braze interface, solder interface, ther-mal spray deposit interface, and weld interface.
  • Induction Seam Welding (RSEW-I)A resistance seam welding process variation in which high-frequency.
  • Intergranular PenetrationThe penetration of liquid welding current is induced in the workpieces.
  • Intermediate FluxA soldering flux with a residue that generally does not attack the base metal.
  • Induction Soldering (IS)A soldering process in which composition may be corrosive.
  • Intermediate Weld BeadA weld bead resulting from an workpieces to induced electric current.
  • Induction Upset Welding (UW-I)An upset welding pro-.
  • Intermediate Weld PassA single progression of weld-cess variation in which high-frequency welding cur-ing along a joint subsequent to the root pass(es) and rent is induced in the workpieces.
  • Intermittent WeldA weld in which continuity is inter-rupted by recurring unwelded spaces.
  • Induction Work CoilThe inductor used when welding, interpass temperature, welding.
  • Inert GasA gas that does not react chemically with successive pulses of current within the same impulse.
  • Ionic BondA primary bond arising from the electro-gas tungsten arc welding.
  • Iron Soldering (INS)A soldering process in which the tion welding in which the energy required to make the heat required is obtained from a soldering iron.
  • Infrared RadiationElectromagnetic energy with wave.
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J

  • J-edge ShapeAn edge shape formed by the combination from infrared radiation.
  • J-groove WeldA type of groove weld.
  • JoiningAny process used for connecting materials.
  • Joint TypeA weld joint classification based on the rela-Figures A.
  • JointThe junction of the workpiece(s) that are to be joints.
  • Joint Welding SequenceSee welding sequence.
  • Joint DesignThe shape, dimensions, and configuration heat source penetrates partially or completely through of the joint.
  • Joint EfficiencyThe ratio of the strength of a joint to the the molten metal fills in behind the hole to form the strength of the base metal.
  • Joint FillerA metal plate inserted between the splice keying.
  • Joint PenetrationThe distance the weld metal extends ure B.
  • Joint RootThe portion of a joint to be welded where the surface.
  • Joint SpacerA metal part, such as a strip, bar, or ring, inserted in the joint root to serve as a backing and to.
  • Joint TrackingA function of an adaptive control deter-.
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K

  • KerfThe gap produced by a cutting process.
  • Keyhole WeldingA technique in which a concentrated.
  • KneeThe supporting structure of the lower arm or platen joint.
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L

  • Lamellar TearA subsurface terrace and step-like crack in temperature to which a brazed or soldered joint must the base metal with a basic orientation parallel to the be raised in order to remelt the braze metal or solder wrought surface caused by tensile stresses in the metal.
  • LaminationA type of discontinuity with separation or area.
  • LanceSee oxygen lance and oxygen lance cutting.
  • Lap JointA joint type in which the nonbutting ends of mining changes in joint location during welding and one or more workpieces overlap approximately paral-directing the welding machine to take appropriate ac-lel to one another.
  • LaserA device producing a concentrated coherent light.
  • Lasing MediumA material emitting coherent radiation beam by stimulated electronic or molecular transitions by virtue of stimulated electronic or molecular transi-to lower energy levels.
  • LayerA stratum of weld metal consisting of one or more weld beads.
  • Laser Beam Air Cutting (LBC-A)A laser beam cutting process variation melting the workpiece and using an layer level wound.
  • Leg Of A Fillet WeldSee fillet weld leg.
  • LensSee filter lens.
  • Level WoundSpooled or coiled filler metal wound in the heat from a laser beam.
  • Laser Beam DiameterThe diameter of a laser beam cir-.
  • Linear DiscontinuityA discontinuity with a length sub-cular cross section at a specified location along the stantially greater than its width.
  • Linear IndicationA test result in which a discontinuity in the material being tested is displayed as a linear or laser beam evaporative cutting (LBC-EV).
  • LiquationThe partial melting of compositional hetero-ments that will increase the diameter of a laser beam.
  • Laser Beam Inert Gas Cutting (LBC-IG)A laser beam cutting process variation melting the workpiece and liquation, brazing.
  • Laser Beam Oxygen Cutting (LBC-O)A laser beam cut-.
  • LiquidusThe lowest temperature at which a metal is ting process variation using heat from the chemical completely liquid.
  • Local PreheatingPreheating a specific portion of a maintained with a laser beam.
  • Laser Beam SplitterAn optical device using controlled local stress relief heat treatment.
  • Laser Beam Welding (LBW)A welding process produc-long electrode extension, electrogas welding, flux cored ing coalescence with the heat from a laser beam arc welding, gas metal arc welding, and submerged impinging on the joint.
  • Lasing GasA gaseous lasing medium.
  • Longitudinal CrackA crack approximately parallel to manual transgun.
  • Longitudinal SequenceThe order in which the weld torch, gun, or electrode holder held and manipulated passes of a continuous weld are made with respect to by hand.
  • Longitudinal Weld Test SpecimenA weld test specimen.
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M

  • Manual Brazing (B-MA)See manual process.
  • Manual Soldering (S-MA)See manual process.
  • Manual Welding (W-MA)See manual process.
  • Macroetch TestA test in which a specimen is prepared original assembled thickness.
  • MacroexaminationA metallographic examination in of a thermal spray deposit.
  • ManifoldSee cylinder manifold.
  • Metal Cored ElectrodeA composite tubular filler metal tor in response to visual observation, with the torch, electrode consisting of a metal sheath and a core of gun, wire guide assembly, or electrode holder held by various powdered materials, producing no more than a mechanical device.
  • Metal ElectrodeA filler or nonfiller metal electrode nized welding.
  • Metal Powder Cutting (OC-P)An oxygen cutting pro-process.
  • Medium Vacuum Electron Beam Welding (EBW-MV)
  • Metallic BondThe primary bond holding metals An electron beam welding process variation in which together, arising from the increased spacing of welding is accomplished at a pressure of 10–1 pascal valence electrons when an aggregate of metal atoms to 3 × 103 pascal [approximately 10–3 torr to 25 torr].
  • Meltback TimeThe time interval at the end of crater fill time to arc outage during which electrode feed is metallizing.
  • Microetch TestA test in which the specimen is prepared into the leading edge of the weld pool.
  • Melting RangeThe temperature range between solidus high magnification.
  • MicroexaminationA metallographic examination in which a prepared surface is examined at high magnification.
  • Melting RateThe weight or length of electrode, wire, rod, or powder melted in a unit of time.
  • Melt-throughVisible root reinforcement in a joint welded from one side.
  • MismatchSee weld joint mismatch.
  • Mixed ZoneThe portion of the weld metal consisting of.
  • MetalAn opaque, lustrous, elemental chemical sub-a mixture of base metal and filler metal.
  • Mixing ChamberThe part of a welding or cutting torch in which a fuel gas and oxygen are mixed.
  • Metal-bath Dip BrazingA dip brazing process variation molding shoe.
  • Moving ShoeA backing shoe sliding along the joint dur-its intended purpose using techniques not affecting its ing welding.
  • Multipass WeldA fusion weld produced by more than nondestructive inspection.
  • Multiple-impulse WeldingA resistance welding process nonsynchronous timing.
  • Multiport NozzleA constricting nozzle of the plasma electrode and the constricting nozzle of the plasma arc arc torch containing two or more orifices located in a torch or thermal spraying gun.
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N

  • Nonstandard TermA word or expression used colloqui-ally that is provided as a link to the standard term in 2G, plate.
  • Nontransferred ArcAn arc established between the.
  • NozzleSee constricting nozzle, gas nozzle, and insu-groove welding.
  • Neutral FlameAn oxyfuel gas flame that is neither oxi-gases.
  • Nozzle AccumulationFiller metal or surfacing material carburizing flame, oxidizing flame, and reducing deposited on the inner surface and on the exit end of flame.
  • NuggetThe weld metal zone in a spot, seam, or projec-to produce a weld metal composition that is not tion weld.
  • Nonbutting MemberA joint member free to move in size.
  • Nonconsumable ElectrodeAn electrode that does not operating in a repeat mode.
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O

  • Off TimeThe interval between welding cycles when.
  • Oxyacetylene Welding (OAW)An oxyfuel gas welding terminals of the power source when the rated primary process employing acetylene as the fuel gas.
  • Oxyfuel Gas Cutting (OFC)A group of oxygen cutting.
  • Open Root JointAn unwelded joint without backing or processes using heat from an oxyfuel gas flame.
  • OrificeSee constricting orifice.
  • Orifice GasThe gas directed into the plasma arc torch or the preheating flame produced by the controlled com-thermal spraying gun to surround the electrode.
  • Orifice Throat LengthThe length of the constricting ori-fice in the plasma arc torch or thermal spraying gun.
  • OscillationAn alternating pattern of motion relative to ing them with an oxyfuel gas flame.
  • Oxyfuel Gas Welding TorchA device used in oxyfuel gas oven soldering.
  • Overhead PositionSee overhead welding position.
  • Oxygen CutterSee thermal cutter.
  • Oxidizing FlameAn oxyfuel gas flame in which there is.
  • Oxygen Gouging (OG)Thermal gouging using an oxy-an excess of oxygen, resulting in an oxygen-rich zone gen cutting process variation to form a bevel or extending around and beyond the cone.
  • Oxyacetylene Cutting (OFC-A)An oxyfuel gas cutting.
  • Oxygen LanceA length of pipe used to convey oxygen to process variation employing acetylene as the fuel gas.
  • Oxyhydrogen Cutting (OFC-H)An oxyfuel gas cutting to the weld joint prior to gas tungsten arc welding process variation employing hydrogen as the fuel gas.
  • Oxyhydrogen Welding (OHW)An oxyfuel gas welding percent ferrite.
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P

  • Photocopy RightsNo portion of this standard may be reproduced, stored in a retrieval system, or transmitted in any form, including mechanical, photocopying, recording, or otherwise, without the prior written permission of the copyright owner.
  • PeeningThe mechanical working of metals using cess employing oxygen supplied through a consum-impact blows.
  • Percussion Welding (PEW)A welding process produc-oxynatural gas cutting (OFC-N).
  • Pilot ArcA low current arc between the electrode and the constricting nozzle of the plasma arc torch to ion-P ize the gas and facilitate the start of the welding arc.
  • PlasmaSee arc plasma.
  • Plasma Arc Cutting TorchA device used to transfer cur-rent to a fixed cutting electrode, position the elec-.
  • Partial Joint Penetration WeldA groove weld in which trode, and direct the flow of shielding gas and orifice incomplete joint penetration exists.
  • Plasma Arc Gouging (PAG)A thermal gouging process plete joint penetration weld, incomplete joint pene-using heat from a constricted arc and the force of an tration, and joint penetration.
  • PassSee thermal spraying pass and weld pass.
  • Pass SequenceSee weld pass sequence.
  • Peel TestA destructive testing method mechanically sep-trode, and direct the flow of shielding gas and orifice arating a lap joint by peeling.
  • Plasma SprayerSee thermal sprayer.
  • PostheatingThe application of heat to an assembly after spraying operator.
  • Plasma Spraying (PSP)A thermal spraying process in postweld interval, resistance welding.
  • Powder BlendA mixture of two or more alloy, metal, or operator.
  • PlenumSee plenum chamber.
  • Powder Feed RateThe quantity of powder fed to a ther-.
  • Plenum ChamberThe space between the electrode and mal spraying gun or a cutting torch per unit of time.
  • Powder FeederA device for supplying powdered mate-plasma arc torch or thermal spraying gun.
  • Powder Flame SprayingA flame spraying process vari-.
  • Plug WeldA weld made in a circular hole in one mem-ation in which the surfacing material is in powder ber of a joint fusing that member to another member.
  • Power DensityThe power per unit area.
  • Power SourceAn apparatus for supplying current and plug weld size.
  • PolaritySee direct current electrode negative and source.
  • PorosityCavity-type discontinuities formed by gas filler metal to components prior to assembly and join-entrapment during solidification or in a thermal spray ing.
  • Preflow TimeThe time interval between start of shield-portable gun, resistance welding.
  • PositionSee welding position.
  • Position Of WeldingSee welding position.
  • Postflow TimeThe time interval from current shut-off to preheat current, resistance welding.
  • Procedure QualificationThe demonstration that the use perature of the base material in the volume surround-of prescribed joining processes, materials, and tech-ing the joint immediately before brazing or soldering niques will result in a joint exhibiting specified sound-is started.
  • ProcessA grouping of basic operational elements used preheat temperature, thermal spraying.
  • Progressive Block SequenceA block sequence in which spraying is started.
  • Projection Welding (PW)A resistance welding process in which the weld size, shape, and placement is deter-preheat time, resistance welding.
  • Protective AtmosphereA gas or vacuum envelope the stipulated conditions of a particular welding code present during joining, thermal cutting, or thermal or specification and therefore acceptable for use under spraying used to prevent or reduce the formation of that code or specification without a requirement for oxides and other detrimental surface substances and qualification testing.
  • Pressure Gas Welding (PGW)An oxyfuel gas welding gas, reducing atmosphere, and shielding gas.
  • Pulsed Gas Metal Arc Welding (GMAW-P)A gas metal.
  • ProcedureThe detailed elements of a process or method arc welding process variation in which the current is pulsed.
  • Pulsed LaserA laser whose output is controlled to pro-.
  • Pulsed Power WeldingAn arc welding process variation the member is isolated as a free body without connec-in which the welding power source is programmed to tion to other parts of the structure.
  • Pulsed Spray WeldingAn arc welding process variation recycled flux processed for use or reuse.
  • PurgeThe introduction of a gas to remove contaminants from a system or provide backing during welding.
  • Push AngleThe travel angle when the electrode is point-ing in the direction of weld progression.
  • Push WeldingA resistance welding process variation in processed for reuse.
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Q

  • QualificationSee procedure qualification and welder that dissociates metal oxides at elevated temperatures.
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R

  • Rate Of DepositionSee deposition rate.
  • Reaction SolderingA soldering process variation in duce a pulse whose duration is 25 milliseconds or which a reactive flux is used.
  • Reaction StressA stress that cannot exist in a member if.
  • ReactorA device used in arc welding circuits to mini-voltage and current.
  • Reducing AtmosphereA type of protective atmosphere.
  • Reducing FlameAn oxyfuel gas flame with an excess of quench time, resistance welding.
  • Reflow SolderingA soldering process in which the filler cooled by the electrodes.
  • Random Intermittent WeldsIntermittent welds on one or both sides of a joint in which the weld segments are remelt temperature, brazing and soldering.
  • Random SequenceA longitudinal sequence in which the temperature.
  • Residual StressStress present in a joint member or mate-random wound.
  • Resistance Seam Weld SizeSee seam weld size.
  • Resistance Seam Welding (RSEW)A resistance welding process producing a weld at the faying surfaces of resistance welding upslope time.
  • Resistance Welding Weld TimeThe duration of welding current flow through the workpieces in single-impulse resistance soldering (RS).
  • Resistance Spot Weld SizeSee spot weld size.
  • Robot GunA resistance welding gun adapted for manip-B.
  • Resistance Welding (RW)A group of welding processes robotic, adj.
  • Robotic Brazing (B-RO)See robotic process.
  • Robotic Process (XXXX-RO)An operation with equip-with regard to the welding current waveforms, elec-ment that moves along a controlled path using con-trode or platen force or movement, and other opera-trolled parameters with no manual intervention once a tional conditions of a resistance welding machine.
  • Resistance Welding CurrentThe current in the second-dering, robotic thermal cutting, robotic thermal ary circuit during the weld interval or weld time.
  • Robotic Soldering (S-RO)See robotic process.
  • Robotic Thermal Cutting (TC-RO)See robotic process.
  • Robotic Thermal Spraying (TS-RO)See robotic process.
  • Robotic Welding (W-RO)See robotic process.
  • Roll Welding (ROW)A solid-state welding process pro-See also groove and rotary roughening, knurling, and threading and knurling.
  • Root BeadA weld bead extending into or including part round edge shape.
  • Root Bend TestA test in which the weld root is on the rub soldering.
  • Root Crack.
  • Runoff Weld TabAdditional material extending beyond.
  • Root EdgeA root face of zero width.
  • Root FaceThe portion of the groove face within the joint root.
  • Root Of JointSee joint root.
  • Root Of WeldSee weld root.
  • Root OpeningA separation at the joint root between the brazing filler metal.
  • Root PassA weld pass made to produce a root bead.
  • Root SurfaceThe exposed surface of a weld opposite the seal-bonding material, thermal spraying.
  • Root Surface Crackseam.
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S

  • Salt-bath Dip BrazingA variation of chemical-bath dip beyond the bevel or bevel radius, respectively, to pro-brazing using heat from a molten salt bath.
  • Salt-bath Dip SolderingA dip soldering variation using root gap.
  • Sandwich BrazementA brazed assembly consisting of layers of dissimilar materials joined using preplaced.
  • Seal WeldAny weld intended primarily to provide a spe-root shielding gas.
  • Seam WeldA continuous weld produced between over-B.
  • Semiblind JointA joint in which a portion of the joint is resistance heating and forging force along the weld joint.
  • Series Submerged Arc Welding (SAW-S)A submerged arc welding process variation in which the arc is.
  • Secondary CircuitThe portion of the welding circuit established between two consumable electrodes meet-conducting current between output terminals of the ing just above the surface of the workpieces, which power source and electrodes or between electrodes are not part of the welding current circuit.
  • Series WeldingA resistance welding secondary circuit secondary current path, resistance welding.
  • ServogunA resistance welding gun incorporating an electric, hydraulic, or pneumatic servoactuator to self-fluxing alloy, thermal spraying.
  • Self-shielded Flux Cored Arc Welding (FCAW-S)A flux.
  • SetbackSee contact tip setback and electrode setback.
  • Semiautomatic Process (XXXX-SA)An operation per-.
  • Shielded Metal Arc Cutting (SMAC)An arc cutting pro-formed manually with equipment controlling one or cess employing a covered electrode.
  • Shielding GasA gas used to produce a protective atmo-sphere.
  • Short Circuit Gas Metal Arc Welding (GMAW-S)A gas automatic process.
  • Single-flare-V GrooveA weld groove formed by the short circuiting arc welding.
  • Single-flare-V-groove WeldA weld in a single-flare-V transfer in which molten metal from a consumable groove welded from one side.
  • single-J Edge ShapeA type of J-edge shape having one.
  • Shrinkage VoidA cavity-type discontinuity formed as a prepared surface.
  • single-J GrooveA weld groove formed by the combina-.
  • Side Bend TestA test in which the side of a transverse tion of a butting member having a single-J edge shape section of the weld is on the convex surface of a spec-abutting a planar surface of a companion member.
  • Single-port NozzleA constricting nozzle of the plasma distribution, usually expressed as the weight percent-arc torch containing one orifice, located below and age retained upon each of a series of standard screens concentric with the electrode.
  • Single-spliced Butt JointSee spliced joint.
  • single-U GrooveA weld groove formed by the combina-tion of two butting members having single-J edge single-bevel edge shape.
  • Single-bevel GrooveA weld groove formed by the com-welded from one side.
  • single-V GrooveA V-shaped weld groove formed by the a butting member with a square edge shape and a combination of (a) butting members having single-skewed surface of a nonbutting member.
  • Single-flare-bevel GrooveA weld groove formed by the welded from one side.
  • Size Of WeldSee weld size.
  • Single-flare-bevel-groove WeldA weld in a single-skewed joint.
  • Soldering (S)A group of joining processes in which the workpiece(s) and solder are heated to the soldering skull, brazing and soldering.
  • Soldering BlowpipeA device used to divert a portion of.
  • SlagA nonmetallic product resulting from the mutual a flame for fine work, such as jewelry.
  • Soldering Filler MetalThe metal or alloy to be added in entrapped in weld metal or at the weld interface.
  • Soldering Filler Metal PastePaste consisting of a filler member.
  • Soldering FluxA flux used for soldering.
  • Slot Weld SizeThe width and length of the weld metal in corrosive flux, and reaction flux.
  • SluggingThe unauthorized addition of metal, such as a.
  • Soldering GunAn electrically heated soldering iron with length of rod, to a joint before welding or between a pistol grip.
  • Soldering IronA tool for manual soldering used to heat fusion.
  • Smoothing BeadA weld bead made to correct an unde-which is heated by internal electrical resistance or sirable weld surface contour.
  • SoldermentAn assembly joined by soldering.
  • SolidusThe highest temperature at which a metal is action.
  • SpacerSee joint spacer.
  • Solder InterfaceThe boundary between solder metal.
  • SpatterThe metal particles expelled during fusion weld-and base material in a soldered joint.
  • Solder MetalThe portion of a soldered joint melted.
  • Spatter LossMetal lost due to spatter.
  • SolderabilityThe capacity of a material to be soldered spit.
  • Spray–fuseA thermal spraying technique in which the splice.
  • Splice MemberThe workpiece spanning the joint in a.
  • Spraying BoothAn exhaust booth where thermal spray-spliced joint.
  • Spliced Butt JointSee spliced joint.
  • Spraying OperatorSee thermal spraying operator.
  • Spliced JointA joint in which an additional workpiece spraying rate, thermal spraying.
  • Split Layer TechniqueA welding technique resulting in lapped, superimposed, or at various angles.
  • Square Edge ShapeA type of edge shape in which the prepared surface lies perpendicular to the material.
  • Split Pipe BackingA pipe segment used as a backing for surface.
  • Square GrooveA weld groove formed by the combina-.
  • SpoolA filler metal packaging configuration in which tion of a butting member having a square edge shape the wire is wound around a cylinder (called a barrel), and a planar surface of a companion member.
  • Spot Weld SizeThe diameter of the nugget in the plane staggered intermittent weld.
  • Spray DepositSee thermal spray deposit.
  • Spray Deposit Density RatioSee thermal spray deposit and made available for production welding by compa-density ratio.
  • Start TimeThe time interval prior to the weld time dur-.
  • SprayerSee thermal sprayer.
  • Starting Weld TabAdditional material extending beyond.
  • Stress-corrosion CrackingFailure of metals by cracking the beginning of the joint, on which the weld is under the combined actions of corrosion and stress, started.
  • Stress-relief Heat TreatmentUniform heating of a struc-stationary shoe.
  • Step BrazingA brazing process variation in which suc-lowed by uniform cooling.
  • StrikeSee arc strike.
  • Stringer BeadA weld bead formed without appreciable step soldering.
  • StrongbackA device attached to the members of a weld melting previously soldered joints.
  • StubThe short length of filler metal electrode, welding sequence.
  • Stud WeldingA general term for joining a metal stud or stickout, gas metal arc welding and gas-shielded flux similar part to a workpiece.
  • Submerged Arc Welding (SAW)An arc welding process tungsten electrode extending beyond the end of the using an arc or arcs between a bare metal electrode or gas nozzle.
  • SubstrateA workpiece onto which a coating is applied.
  • Surface PreparationThe operations necessary to pro-duce a desired or specified surface condition.
  • SurfacingThe application by welding, brazing, or ther-mal spraying of a layer, or layers, of material to a sur-temporary weld.
  • Surfacing MaterialThe material applied to a base metal sion until failure occurs.
  • Surfacing WeldA weld applied to a surface, as opposed.
  • SusceptorAn inductively heated component positioned calculated force, neglecting friction and inertia, devel-near a joint to aid in heating.
  • Sustained BackfireThe recession of the flame into the static electrode force.
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T

  • Tension TestA test in which a specimen is loaded in ten-.
  • Test CouponA weldment, brazement, or solderment used metal or substrate during surfacing.
  • Test SpecimenA sample of a test coupon subjected to to making a joint, to obtain desired properties or testing.
  • Theoretical ThroatThe distance from the beginning of hissing sound, potentially burning through the torch the joint root perpendicular to the hypotenuse of the body.
  • Thermal CutterOne who performs manual or semiauto-of each half cycle of welding transformer primary cur-matic thermal cutting.
  • Thermal Cutting (TC)A group of cutting processes sev-T ering or removing metal by localized melting, burn-ing, or vaporizing of the workpieces.
  • TabSee runoff weld tab, starting weld tab, and weld cutting, high energy beam cutting, and oxygen tab.
  • Tack WeldA weld made to hold the parts of a weldment.
  • Thermal Cutting OperatorOne who operates automatic, in proper alignment until the final welds are made.
  • Thermal Gouging (TG)A thermal cutting process varia-tion removing metal by melting or burning the entire.
  • Taper Delay TimeThe time interval after upslope during removed portion, to form a bevel or groove.
  • Taper TimeThe time interval when current increases or.
  • Thermal Spray DepositThe coating or layer of surfacing decreases continuously from the welding current to material applied by a thermal spraying process.
  • Thermal Spray Deposit StrengthThe tensile strength of pressure welding.
  • Thermal Spray PassA single progression of the thermal throat area, resistance welding.
  • Thermal SprayerOne who performs semiautomatic thermal spraying.
  • Thermal Spraying Deposition EfficiencyThe ratio of the stricting orifice length.
  • Thermal StressStress in a material or assembly resulting or weld metal to facilitate fusion.
  • Thermite CrucibleThe vessel in which the thermite reaction takes place.
  • Thermite MixtureA mixture of metal oxide and finely.
  • TipSee cutting tip and welding tip.
  • Thermite MoldA mold formed around the workpieces.
  • T-jointA joint type in which the butting end of a work-to receive molten metal.
  • Thermite ReactionThe chemical reaction between metal either its surface or the surface of a nonbutting work-oxide and aluminum producing superheated molten piece.
  • Toe CrackA crack observed at the weld toe.
  • Travel Start Delay TimeThe time interval from arc initi-.
  • Toe Of WeldSee weld toe.
  • TorchSee air carbon arc cutting torch, gas tungsten arc cutting torch, gas tungsten arc welding torch, travel stop delay time.
  • Tubular JointA joint between two or more members, at.
  • Torch Brazing (TB)A brazing process using heat from a least one of which is tubular.
  • Tungsten ElectrodeA nonfiller metal electrode used in torch soldering (TS).
  • Torch TipSee cutting tip and welding tip.
  • Transferred ArcA plasma arc established between the using heat from an arc between two carbon electrodes.
  • Transformer TapConnections to a transformer winding.
  • Twin Carbon Arc Welding (CAW-T)A carbon arc weld-used to vary the transformer turns ratio, thereby con-ing process variation using an arc between two carbon trolling welding voltage and current.
  • TransgunA resistance welding gun with an integral,.
  • Type Of JointSee joint type.
  • Transverse CrackA crack with its major axis oriented B.
  • Transverse Tension SpecimenSee transverse weld test is transmitted from the transducer to the tip.
  • Travel AngleThe angle less than 90° between the elec-metal.
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U

  • U-groove WeldA type of groove weld.
  • Ultrasonic Soldering (USS)A soldering process varia-transverse weld test specimen.
  • UndercutA groove melted into the base metal adjacent.
  • UnderfillA groove weld condition in which the weld 2G.
  • UpsetBulk deformation of a workpiece(s) resulting virgin flux, submerged arc welding.
  • Upset DistanceThe total reduction in the axial length of W the workpieces from the initial contact to the comple-tion of the weld.
  • Upset ForceThe force exerted at the faying surfaces dur-placed on an alloy workpiece at the torch side to pro-ing upsetting.
  • Upset TimeThe portion of a welding cycle during which workpiece.
  • Upset Welding (UW)A resistance welding process pro-spray booth through water so the vented air is free of ducing a weld over the entire area of faying surfaces thermal sprayed particles or fumes.
  • Upslope TimeSee automatic arc welding upslope time See also dip soldering.
  • UsabilityA measure of the relative ease of application of workpieces to the form desired for the completed a welding filler metal to make a sound weld.
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V

  • Vertical PositionSee vertical welding position.
  • V-groove WeldA type of groove weld.
  • Voltage RegulatorAn automatic electrical control device height.
  • Vacuum Plasma Spraying (VPSP)A thermal spraying weld, n.
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W

  • Water WashThe forcing of exhaust air and fumes from a.
  • WeavingA welding technique in which the thermal vacuum brazing.
  • Weld AxisA line through the length of the weld, perpen-weld metal.
  • Weld BeadA weld resulting from a weld pass.
  • Weld Metal CrackA crack occurring in the weld metal ures B.
  • Weld BondingA welding process variation in which the consisting of weld metal.
  • Weld PassA single progression of welding along a joint.
  • Weld Pass SequenceThe order in which the weld passes melted to form a braze augmenting the weld by are made.
  • Weld CrackA crack located in the weld metal or heat-weld prior to its solidification as weld metal.
  • Weld DamA metallic or nonmetallic object placed at the end of a weld groove to contain the molten metal and weld recognition.
  • Weld ReinforcementWeld metal in excess of the quan-weld face.
  • Weld RootThe points, shown in cross section, at which.
  • Weld Face UnderfillSee underfill.
  • Weld GaugeA device designed for measuring the shape through B.
  • Weld SymbolA graphic character connected to the refer-cool times to produce a multiple-impulse weld.
  • Welding Filler MetalThe metal or alloy to be added in weld time.
  • Welding FluxA flux used for welding.
  • Weld VoltageSee arc voltage.
  • WeldabilityThe capacity of material to be welded under rial comprised of metallic and nonmetallic constitu-the imposed fabrication conditions into a specific, ents applied during welding to provide atmospheric suitably designed structure performing satisfactorily shielding and cleaning of the molten weld metal and in the intended service.
  • WelderOne who performs manual or semiautomatic weld metal composition.
  • Welding ForceSee dynamic electrode force, electrode welder performance qualification.
  • Welding GeneratorA generator used for supplying cur-certification or a photostatic copy of the welder rent for welding.
  • WeldingA joining process producing coalescence of workpiece connection.
  • Welding HeadThe part of a welding machine in which a application of pressure alone, and with or without the welding gun or torch is incorporated.
  • Welding MachineEquipment used to perform the weld-and resistance welding current.
  • Welding CycleThe complete series of events involved in arc welding machine, and seam welding machine.
  • Welding ElectrodeA component of the welding circuit welding position.
  • Welding Power SourceAn apparatus for supplying cur-oxyfuel gas welding torch, and plasma arc welding rent and voltage suitable for welding.
  • Welding ProcedureThe detailed methods and practices involved in the production of a weldment.
  • Welding VoltageSee arc voltage, open circuit voltage, welding procedure specification.
  • Welding WireA form of welding filler metal, normally dure specification.
  • WeldmentAn assembly joined by welding.
  • WhippingA welding technique in which the thermal source is oscillated longitudinally as it progresses along.
  • Welding ScheduleA written statement, usually in tabu-the weld path.
  • Wiped JointA joint made with solder having a wide melting range and with the heat supplied by the welding sequence.
  • Welding SymbolA graphical representation of the speci-obtain the required size and contour.
  • Wire Feed SpeedThe rate at which wire is consumed in symbol.
  • Wire StraightenerA device used for controlling the cast.
  • Welding Test PositionThe orientation of a weld joint for and helix of coiled wire to enable it to be easily fed welding procedure or welder qualification testing.
  • Work AngleThe angle less than 90° between a line per-.
  • Welding Test Position DesignationA symbol represen-pendicular to the major workpiece surface and a plane tation for a fillet weld or a groove weld, the joint ori-determined by the electrode axis and the weld axis.
  • WorkpieceAn assembly, component, member, or part in perpendicular to the cylindrical pipe surface at the the process of being manufactured.
  • Workpiece ConnectorA device used to provide an elec-the nonbutting member.
  • Workpiece LeadA secondary circuit conductor transmit-.
  • Work CoilSee induction work coil.
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