Welding is playing an important role in the engineering and other industries today. It lhas become one of
the principal means of fabrication and repairing metal products. It is almost impossible to nane an industry,
ternal large or small, tiat does not employ some type of welding. Welding has proved itself an efficient, dependable, and econOmical means of joining imetal in practically all metal fabricating operauons.
Welding is extensively used for the manufacture and repair of machine tools, jigs and fixtures, farm
equipment, mining and oil machinery. It is used in the construction of boilers, fumaces, railway, cars,
aeroplanes, rockets, and missiles. Probably the. most sizeable contribution the welding has made to the
society is the manufacture of special products for household, e.g, television sets, refrigerators, kitchen
cabinets, dish-waslhers and other similar products.

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