WELDING :-
welding is a prosess of joining similar metals by the application of heat with or without application of pressure and addition of martial.
welding finds wids application in metal industry and is utilized by every factory in one from or antor. weldability is defined as the capacity of being welded into inseparable joints having specified properties such as definite weld strenght proper structure etc. weldability depends on one or more of five major factors (1) melting point (2) thermal conductivity (3)thermal expension (4)surface conditionand (5)chang in microstucture.
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