Гричин С.В., Ульянова О.В. - Английский язык для инженеров сварочного производства (1044906), страница 25
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Metal-Arc. Filler metal in the form of a wire or rod, whether bare orcovered, through which current is conducted between the electrodeholder and the arc.b. Carbon-Arc. A carbon or graphite rod through which current isconducted between the electrode holder and the arc.132c.Atomic .
One of the two tungsten rods between the points of whichthe arc is maintained.d. Electrolytic Oxygen-Hydrogen Generation. The conductors bywhich current enters and leaves the water, which is decomposed by thepassage of the current.e. Resistance Welding. The part or parts of a resistance weldingmachine through which the welding current and the pressure areapplied directly to the work.ELECTRODE FORCEa. Dynamic. In spot, seam, and projection welding, the force (pounds)between the electrodes during the actual welding cycle.b. Theoretical. In spot, seam, and projection welding, the force,neglecting friction and inertia, available at the electrodes of aresistance welding machine by virtue of the initial force applicationand the theoretical mechanical advantage of the system.c.
Static. In spot, seam, and projection welding, the force between theelectrodes under welding conditions, but with no current flowing andno movement in the welding machine.ELECTRODE HOLDERA device used for mechanically holding the electrode and conduct- ingcurrent to it.ELECTRODE SKIDThe sliding of an electrode along the surface of the work during spot,seam, or projection welding.EMBOSSMENTA rise or protrusion from the surface of a metal.ETCHINGA process of preparing metallic specimens and welds for macrographicor micrographic examination.FACE REINFORCEMENTReinforcement of weld at the side of the joint from which welding wasdone.FACE OF WELDThe exposed surface of a weld, made by an arc or gas welding process,on the side from which welding was done.FAYING SURFACEThat surface of a member that is in contact with another member towhich it is joined.FERRITE133The virtually pure form of iron existing below the lower criticaltemperature and characterized by a body-centered cubic lattice crystalstructure.
It is magnetic and has very slight solid solubility for carbon.FILLER METALMetal to be added in making a weld.FILLET WELDA weld of approximately triangular cross section, as used in a lap joint,joining two surfaces at approximately right angles to each other.FILTER GLASSA colored glass used in goggles, helmets, and shields to excludeharmful light rays.FLAME CUTTINGsee OXYGEN CUTTING.FLAME GOUGINGSee OXYGEN GOUGING.FLAME HARDENINGA method for hardening a steel surface by heating with a gas flamefollowed by a rapid quench.FLAME SOFTENINGA method for softening steel by heating with a gas flame followed byslow cooling.FLASHMetal and oxide expelled from a joint made by a resistance weldingprocess.FLASH WELDINGA resistance welding process in which fusion is produced,simultaneously over the entire area of abutting surfaces, by the heatobtained from resistance to the flow of current between two surfacesand by the application of pressure after heating is substantiallycompleted.
Flashing is accompanied by expulsion of metal from thejoint.FLASHBACKThe burning of gases within the torch or beyond the torch in the hose,usually with a shrill, hissing sound.FLAT POSITIONThe position in which welding is performed from the upper side of thejoint and the face of the weld is approximately horizontal.FILM BRAZINGA process in which bonding is produced by heating with a moltennonferrous filler metal poured over the joint until the brazing134temperature is attained.
The filler metal is distributed in the joint bycapillary attraction. See BRAZING.FLOW WELDINGA process in which fusion is produced by heating with molten fillermetal poured over the surfaces to be welded until the weldingtemperature is attained and the required filler metal has been added.The filler metal is not distributed in the joint by capillary attraction.FLUXA cleaning agent used to dissolve oxides, release trapped gases andslag, and to cleanse metals for welding, soldering, and brazing.FOREHAND WELDINGA gas welding technique in which the flare is directed against the basemetal ahead of the completed weld.FORGE WELDINGA group of welding processes in which fusion is produced by heatingin a forge or furnace and applying pressure or blows.FREE BEND TESTA method of testing weld specimens without the use of a guide.FULL FILLET WELDA fillet weld whose size is equal to the thickness of the thinnermember joined.FURNACE BRAZINGA process in which bonding is produced by the furnace heat and anonferrous filler metal having a melting point above 800 °F (427 °C),but below that of the base metals.
The filler metal is distributed in thejoint by capillary attraction.FUSIONA thorough and complete mixing between the two edges of the basemetal to be joined or between the base metal and the filler metal addedduring welding.FUSION ZONE (FILLER PENETRATION)The area of base metal melted as determined on the cross section of aweld.GAS CARBON-ARC WELDINGAn arc welding process in which fusion is produced by heating with anelectric arc between a carbon electrode and the work. Shielding isobtained from an inert gas such as helium or argon. Pressure and/orfiller metal may or may not be used.GAS METAL-ARC (MIG) WELDING (GMAW)An arc welding process in which fusion is produced by heating with anelectric arc between a metal electrode and the work.
Shielding is135obtained from an inert gas such as helium or argon. Pressure and/orfiller metal may or my not be used.GAS POCKETA weld cavity caused by the trapping of gases released by the metalwhen cooling.GAS TUNGSTEN-ARC (TIG) WELDING (GTAW)An arc welding process in which fusion is produced by heating with anelectric arc between a tungsten electrode and the work while an inertgas forms around the weld area to prevent oxidation.
No flux is used.GAS WELDINGA process in which the welding heat is obtained from a gas flame.GLOBULAR TRANSFER (ARC WELDING)A type of metal transfer in which molten filler metal is transferredacross the arc in large droplets.GOGGLESA device with colored lenses which protect the eyes from harmfulradiation during welding and cutting operations.GROOVEThe opening provided between two members to be joined by a grooveweld.GROOVE ANGLEThe total included angle of the groove between parts to be joined by agroove weld.GROOVE FACEThat surface of a member included in the groove.GROOVE RADIUSThe radius of a J or U groove.GROOVE WELDA weld made by depositing filler metal in a groove between twomembers to be joined.GROUND CONNECTIONThe connection of the work lead to the work.GROUND LEADSee WORK LEAD.GUIDED BEND TESTA bending test in which the test specimen is bent to a definite shape bymeans of a jig.HAMMER WELDINGA forge welding process.136HAND SHIELDA device used in arc welding to protect the face and neck.
It isequipped with a filter glass lens and is designed to be held by hand.HARD FACINGA particular form of surfacing in which a coating or cladding is appliedto a surface for the main purpose of reducing wear or loss of materialby abrasion, impact, erosion, galling, and cavitations.HARD SURFACINGThe application of a hard, wear-resistant alloy to the surface of a softermetal.HARDENINGa. The heating and quenching of certain iron-base alloys from atemperature above the critical temperature range for the purpose ofproducing a hardness superior to that obtained when the alloy is notquenched. This term is usually restricted to the formation ofmartensite.b. Any process of increasing the hardness of metal by suitabletreatment, usually involving heating and cooling.HEAT AFFECTED ZONEThat portion of the base metal whose structure or properties have beenchanged by the heat of welding or cutting.HEAT TIMEThe duration of each current impulse in pulse welding.HEAT TREATMENTAn operation or combination of operations involving the heating andcooling of a metal or an alloy in the solid state for the purpose ofobtaining certain desirable conditions or properties.
Heating andcooling for the sole purpose of mechanical working are excluded fromthe meaning of the definition.HEATING GATEThe opening in a thermit mold through which the parts to be weldedare preheated.HELMETA device used in arc welding to protect the face and neck.
It isequipped with a filter glass and is designed to be worn on the head.HOLD TIMEThe time that pressure is maintained at the electrodes after the weldingcurrent has stopped.137HORIZONTAL WELDA bead or butt welding process with its linear direction horizontal orinclined at an angle less than 45 degrees to the horizontal, and the partswelded being vertically or approximately vertically disposed.HORNThe electrode holding arm of a resistance spot welding machine.HORN SPACINGIn a resistance welding machine, the unobstructed work clearancebetween horns or platens at right angles to the throat depth.
Thisdistance is measured with the horns parallel and horizontal at the endof the downstroke.HOT SHORTA condition which occurs when a metal is heated to that point, prior tomelting, where all strength is lost but the shape is still maintained.HYDROGEN BRAZINGA method of furnace brazing in a hydrogen atmosphere.HYDROMATIC WELDINGSee PRESSURE CONTROLLED WELDING.HYGROSCOPICReadily absorbing and retaining moisture.IMPACT TESTA test in which one or more blows are suddenly applied to a specimen.The results are usually expressed in terms of energy absorbed ornumber of blows of a given intensity required to break the specimen.IMPREGNATED-TAPE METAL-ARC WELDINGAn arc welding process in which fusion is produced by heating with anelectric arc between a metal electrode and the work.
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