Friction Stir Welding of Two Al Plates Using Heated HSS Tool

Y Krishnaiah, Dr. A. M. K Prasad, T Krishna Chaitanya

Abstract: Friction welding is a class of solid-state welding processes that generates heat through mechanical friction between a moving work piece and a stationary component, with the addition of a lateral force called upset to plastically displace and fuse the. In this paper, HSS material was chosen as a tool which is heated to 7500c before joining two Al plates using Lathe machine. Joining between two plates takes place while moving the plates fixed in the jig from one end of joint to other end. Experiment has been conducted based on three process parameters, namely, shoulder diameter, tool rotational speed and travel speed. A mechanical property like Tensile strength has been found to be 232.7MPa, the hardness of base metal is 50.7 HV

Keywords: Lathe machine, Friction stir welding, HSS tool, heat treatment, tensile strength