groove angle
the included angle between the groove faces of a weld groove
groove face
any surface in a weld groove prior to welding
groove radius
a nonstandard term when used for bevel radius
groove weld
A weld in a weld groove on a workpiece surface, between workpiece edges, between workpiece surfaces, or between workpiece edges and surfaces.
groove weld size
the joint penetration of a groove weld
ground clamp
a nonstandard term and incorrect term workpiece connection
ground connection
an electrical connection of the welding machine frame to the earth for safety.
ground lead
a nonstandard and incorrect term for workpiece lead
gun extension
the extension tube attached in front of the thermal spraying gun to permit spraying withing the confined areas or deep recesses
Hammer welding
a nonstandard term for cold welding and forge welding
hammering
excessive electrode impact on the surface of the workpiece during the welding cycle
hand shield
A protective device used in arc cutting, arc welding, and thermal spraying, for shielding the eyes, face, and neck. It is equipped with a filter plate and is designed to be held by hand.
hand soldering
a nonstandard term when used for manual soldering
hard solder
a nonstandard term for silve-based brazing filler metal
hard surfacing
a nonstandard term for hardfacing
hardfacing
A surfacing variation in which surfacing material is deposited to reduce wear.
heat balance
The various material, joint, and welding conditions determining the welding heat pattern in the joint
heat input
the energy applied to the workpiece during welding
heat input rate
the heat input per unit length of weld
heat pattern
the shape of the heat distribution in a material resulting from the application of heat.
heat time
the duration of any one impulse in multiple impulse welding or resistance seam welding
heat affected zone
the portion of the base metal whose mechanical properties or microstructure have been altered by the heat of welding, brazing, soldering, or thermal cutting.
heat-affected zone crack
A crack occurring in the heat affected zone
heating gate
the opening in a thermite mold through which the workpieces are preheated
heating pattern
A description of the manner in which some heat source is applied for joining, cutting, thermal spraying, preheating, postheating, or thermal forming to produce a heat pattern.
heating torch
A device for directing the heating flame produced by the controlled combustion of fuel gases
hermetically sealed container
A container closed in a manner to provide a nonpermeable barrier to the passage of air or gas in either direction.
high energy beam cutting
a groupd of thermal cutting processes severing or removing material by localized melting, burning or vaporizing of the work-pieces using beams having high energy density.
high energy beam welding
A group of welding processes using beams of energy with sufficient density to produce the coalescence of workpieces. The processes are applied with and without the application of filler metal.
high pulse current
the current during the high pulse time producing the heat level.
high pulse time
the duration of the high pulse current
high vacuum electron beam welding
An electron beam welding process variation in which welding is accomplished at a pressure of 10^-4 to 10^-1 pascals
high velocity oxyfuel spraying
A thermal spraying process using a high pressure oxyfuel mixture to heat and propel a powdered surfacing material to a substrate.
high-frequency resistance welding
a group of resistance welding process variations using welding current of at at least 10kHz to concentrate the welding heat at the desired welding location.
high-frequency seam welding
A resistance seam welding process variation in which welding current of at least 10kHz is supplied through the electrodes into the workpiece.
High frequency upset welding
An upset welding process variation in which welding current of at least 10 kHz is supplied through electrodes into the workpieces.
high-low
a non standard term for weld joint mismatch
Gas Metal Arc Welding
An arc welding process using an arc using an arc between a continuous filler metal and the weld pool. The process is used with shielding from an externally supplied gas and without the application of pressure.
gas nozzle
a device at the exit end of the torch or gun that directs shielding gas.
gas pocket
a nonstandard term for porosity
gas regulator
a device for controlling the delivery of gas at some substantially constant pressure.
gas shielded arc welding
a group of processes including electrogas welding, flux cored arc welding, gas metal arc welding, gas tungsten arc welding and plasma arc welding.
gas shielded flux cored arc welding
A flux cored arc welding process variation in which shielding gas is supplied through the gas nozzle in addition to that obtained from the flux within the electrode.
gas torch
a nonstandard term when used for cutting torch and welding torch
Gas Tungsten Arc Cutting
An arc cutting process employing a single tungsten electrode with gas shielding
gas tungsten arc cutting torch
a device used to transfer current to a fixed cutting electrode, position the electrode and direct the flow of shielding gas
Gas Tungsten Arc Welding
An arc welding process using an arc between a tungsten electrode (non-consumable) and the weld pool. The process is used with a shielding gas and without the application of pressure.
gas tungsten arc welding torch
a device used to transfer current to a fixed welding electrode, position the electrode and direct the flow of shielding gas.
gas welding
a nonstandard term for oxyfuel gas welding
getter
A material, such as hot titanium or zirconium, used to purify vacuum or inert gas atmospheres by absorbing or reacting with impurities
globular transfer
The transfer of molten metal in large drops from a consumable electrode across the arc.
goggles
Protective glasses equipped with filter plates set in a frame fitting snugly against the face and used primarily with oxyfuel gas processes.
governing metal thickness
The workpiece thickness on which the required weld nugget size and depth of fusion are based.
gradated thermal spray deposit
A composite thermal spray deposit composed of mixed materials in successive layers progressively changing in composition from the substrate to the surface of the thermal spray deposit.
groove and rotary roughening
A method of surface preparation in which grooves are made and the original surface is roughened and spread.