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Государственное бюджетное профессиональное образовательное учреждение « Многопрофильный техникум имени казачьего генерала С.С. Николаева »

Welding

Учитель английского языка Бобырева Л.В .

WELDING

RESISTANCE WELDING

additive

welding

Leftward welding

Gas welding

Autogenous

Thermit

resistance welding

Butt welding

Arc-welding

Rightward welding

Torch

Spot welding

LEFTWARD WELDING

AUTOGENUOUS WELDING

ARC-WELDING

WELDING

SPOT WELDING

RIGHTWARD WELDING

TORCH

BUTT WELDING

GAS WELDING

ADDITIVE

ДУГОВАЯ СВАРКА

СВАРКА

ГОРЕЛКА

ТОЧЕЧНАЯ СВАРКА

ГАЗОВАЯ СВАРКА

ЛЕВАЯ СВАРКА

КОНТАКТНАЯ СВАРКА

АВТОГЕННАЯ СВАРКА

ПРИСАДКА

СВАРКА ВСТЫК

ПРАВАЯ СВАРКА

WELDING

a process which provides a non-detachable joining of two like metal pieces by heating them till melting condition

In practice rightward welding is mostly used

In leftward welding the additive moves in front of the torch

In rightward welding the torch moves ahead of the additive

According to the movement of the torch, welding may be divided into rightward welding and leftward welding.

4

GAS WELDING

Gas welding is a non-pressure process using heat from a gas flame

Gas welding may be used for cutting metals and repairing agricultural machines and implements.

In autogenous welding the source of heat is the gas flame obtained from a gas which is often acetylene.

Thermit welding is used in repairing rails, frames, etc.

Resistance welding

Butt welding

Spot welding

Electric arc welding

Resistance welding is a process consisting of heating metals to be welded to their plastic temperature and then applying mechanical pressure for achieving a non-detachable joining

Butt welding may be applied for welding pipes, rods, etc.

Arc-welding

was invented in 1802 by the famous Russian scientist V.V. Petrov

It is the most important welding process for joining steels

Spot welding is used for welding parts of automobiles, refrigerators and airplanes

Autogenious welding

Spot welding

Arc welding

Gas welding

Thermit welding

Resistnce welding

torch

Butt welding