Abstract

Joining of dissimilar metals has found its use extensively in power generation, electronic, nuclear reactors, petrochemical and chemical industries due to environmental concerns, energy saving, high performance, cost saving and so on. Dissimilar welding of stainless steel and aluminum alloy has gaining importance in these days due to its high corrosive resistance, light in weight and good weld-ability properties of weld, in-spite of their different melting point, physical and chemical properties. In the present work dissimilar joints of Aluminium (Al 6061-T6) and stainless steel (SS 304) are produced using recently developing technique of Friction Crush Welding (FCW). The welds produced by FCW at fixed feed rate of 30 mm/min and at different tool rotation of 2000 rpm, 3000 rpm and 4000 rpm were characterized for optical micrographs and micro-hardness properties.

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