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Welding is a material joining process used in making welds and a weld is a localised coalescence of metals or non metals produced either by heating the materials to suitable temperature with or without the application of pressure or by the application of pressure alone and with or without the use of filler material.
The various welding processes can be classified in many ways. They can be based on energy transfer, type of welding or mode of welding.
Changes in Mechanical Properties along with Tempering: Tempering enhances the toughness and ductility of quenched steel though decreases hardness. Following figure demonstrate
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Find the tension in the thread: A thread is wound round a heavy homogeneous cylinder of mass m and radius. The cylinder is permitted to fall from rest and unwinds the thread.
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PRINCIPLE OF SUBMERGED ARC WELDING In submerged arc welding, the arc zone is submerged beneath the molten flux and hence there is no visible signature of the arc. Welding current
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Stellite This is an alloy of Co as 40-60%, Cr as 25-35%, W as 4-25% and C as 1-3%. This is a cast alloy comprising C, W, and Cr in Cobalt matrix. Its major characteristic is l
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