Process parameters optimization for friction stir welding of RDE-40 aluminium alloy using Taguchi technique

来源期刊：中国有色金属学报(英文版)2008年第3期

论文作者：A. K. LAKSHMINARAYANAN V. BALASUBRAMANIAN

文章页码：548 - 554

Key words：aluminium alloy; friction stir welding; tensile strength; Taguchi technique; analysis of variance

Abstract: Taguchi approach was applied to determine the most influential control factors which will yield better tensile strength of the joints of friction stir welded RDE-40 aluminium alloy. In order to evaluate the effect of process parameters such as tool rotational speed, traverse speed and axial force on tensile strength of friction stir welded RDE-40 aluminium alloy, Taguchi parametric design and optimization approach was used. Through the Taguchi parametric design approach, the optimum levels of process parameters were determined. The results indicate that the rotational speed, welding speed and axial force are the significant parameters in deciding the tensile strength of the joint. The predicted optimal value of tensile strength of friction stir welded RDE-40 aluminium alloy is 303 MPa. The results were confirmed by further experiments.