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Mohamed Ackiel Mohamed,Yupiter HP Manurung,Mohamed Nor Berhan 대한기계학회 2015 JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY Vol.29 No.6
This study presents the effect of the governing parameters in friction stir welding (FSW) on the mechanical properties and weld qualityof a 6mm thick 6061 T651 Aluminum alloy butt joint. The main FSW parameters, the rotational and traverse speed were optimized basedon multiple mechanical properties and quality features, which focus on the tensile strength, hardness and the weld quality class using themulti-objective Taguchi method (MTM). Multi signal to noise ratio (MSNR) was employed to determine the optimum welding parametersfor MTM while further analysis concerning the significant level determination was accomplished via the well-established analysis ofvariance (ANOVA). Furthermore, the first order model for predicting the mechanical properties and weld quality class is derived byapplying response surface methodology (RSM). Based on the experimental confirmation test, the proposed method can effectively estimatethe mechanical properties and weld quality class which can be used to enhance the welding performance in FSW or other applications.