EFFECT OF FORGE FORCE ON MECHANICAL PROPERTIES OF DISSIMILAR METAL FRICTION WELDS OF STAINLESS STEEL AND LOW CARBON STEEL

Abstract

Several structural applications demand use of steels like low carbon steels and stainless steels because their sound weldability and ductility. Fusion welding of these steels especially in dissimilar metal combination attracts many problems such as cracking, porosity, low ductility etc. To overcome these problems, solid-state welding processes such as friction welding has to be employed as it can provide a solution to the recurrent problems arising in fusion welding. An attempt is made in this work to study the effect of forge force on mechanical properties such as tensile strength and impact toughness of the similar and dissimilar metal friction welds of stainless steel and low carbon steel. It is observed that tensile strength of dissimilar metal welds increased with increase in the forge force while the impact toughness decreased with increase in the forge force.