期刊
JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY
卷 28, 期 1, 页码 301-307出版社
KOREAN SOC MECHANICAL ENGINEERS
DOI: 10.1007/s12206-013-0963-4
关键词
Friction welding; GRA; Optimization; Orthogonal matrix array; PCA
Friction welding is a solid state joining process in which the quality of welded joint is influenced by the input parameter setting. The objective of the present study is to conduct experimental investigation of the bond strength and hardness of the friction welded joints involving AA 6061 and AA 6351 alloys by conducting experiments designed by Taguchi's L-9 orthogonal matrix array. A systematic approach becomes essential to find the optimal setting of friction welding parameters. Hence a new approach named grey-principal component analysis (G-PCA) is presented in which the principal component analysis (PCA) is used to generate weights for the grey relational coefficients obtained in the grey relational analysis (GRA). The results of the confirmation experiment conducted with the optimal setting predicted by the G-PCA have shown improvements in the performance characteristics. Hence G-PCA can be used for experimental welding optimization.
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