Английский для сварщиков. Гричин С.В. - 163 стр.

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163
A seam weld made in a lap joint in which the thickness at the lap is
reduced to approximately the thickness of one of the lapped joints by
applying pressure while the metal is in a plastic state.
MELTING POINT:
The temperature at which a metal begins to liquefy.
MELTING RANGE:
The temperature range between solidus and liquidus.
MELTING RATE:
The weight or length of electrode melted in a unit of time.
METAL-ARC CUTTING:
The process of cutting metals by melting with the heat of the metal arc.
METAL-ARC WELDING:
An arc welding process in which a metal electrode is held so that the
heat of the arc fuses both the electrode and the work to form a weld.
METALLIZING:
A method of overlay or metal bonding to repair worn parts.
MIXING CHAMBER:
That part of a welding or cutting torch in which the gases are mixed for
combustion.
MULTI-IMPULSE WELDING:
The making of spot, projection, and upset welds by more than one
impulse of current. When alternating current is used each impulse may
consist of a fraction of a cycle or a number of cycles.
NEUTRAL FLAME:
A gas flame in which the oxygen and acetylene volumes are balanced
and both gases are completely burned.
NICK BREAK TEST:
A method for testing the soundness of welds by nicking each end of
the weld, then giving the test specimen a sharp hammer blow to break
the weld from nick to nick. Visual inspection will show any weld
defects.
NONFERROUS:
Metals which contain no iron. Aluminum, brass, bronze, copper, lead,
nickel, and titanium are nonferrous.
NORMALIZING:
Heating iron-base alloys to approximately 100 °F (38 °C) above the
critical temperature range followed by cooling to below that range in
still air at ordinary temperature.
NUGGET:
The fused metal zone of a resistance weld.
OPEN CIRCUIT VOLTAGE:

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