Friction welding parametric optimization of AISI 310L austenitic stainless steel weld joints-Grey relational investigation

Abstract

This paper deals with the impact of parameters related to friction welding such as hardness and tensile strength of AISI 310L austenitic stainless steel by using Taguchi based grey relational analysis. This method was used to decide the optimum conditions of process parameters by which the greater hardness and maximum tensile strength were acquired in friction welding. The investigation and trails were carried out by varying the input parameters such as friction force (FF), upsetting force (UF) and heating time (HT) using Taguchi's L9 based orthogonal array. The experimental outcomes demonstrate that, the hardness of 94 HRB and maximum tensile strength 592.08 MPa was obtained from the joints fabricated as per the optimum level of friction force 4 MPa, upsetting force 5.5 MPa and heating time 8 sec.