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Welding Process:There are many definition of a welding process. But the most comprehensive definition is below.
Welding is defined as a "a localized coalescence of metals, wherein coalescence is obtained by heating to suitable temperature, with of without the application of pressure and with or without the use of filler metal. The filler metal has a melting point approximately the same as the base metals."The welding process is used to metallurgical join together two metal pieces, to produce essentially a single piece of metal. The process results in what is known as a 'permanent joint.' A good welded joint is as strong as the parent metal. The product is known as 'Weldment.'
Seam Welding-Selection of parameters The selection of parameters for seam welding depends mainly on: weld nugget size which is related to weld strength. probability of
TEMPERING: The hardening treatment specified to steel raises the hardness but initiates internal stresses due to different cooling rates. The internal stresses are created al
Calculate Size of Blank Required for Drawing A flanged cup shown in Figure is to be produced by deep drawing. Calculate the size of the blank required for drawing.
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GENERAL REASONS FOR DEFECTS The importance of weld quality is increasingly felt as we go ahead with the fabrication of sophisticated products using higher strength mater
A plano convex lens of small radius is used
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