Parametric studies in friction stir welding on Al-Mg alloy with (HCHCr) tool by Taguchi based desirability function analysis (DFA)
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The present investigation is to optimize the welding parameters designed for friction stir welding (FSW) of aluminiummagnesium alloy (AA5052). The authentic configuration of automated linear friction stir welding machine used to weld theAA5052. The experiments were conducted by selecting the different welding process parameters like tool rotation speed (rpm),traverse speed (mm/min), and tool pin profiles. The pin profile made with ceramic tool type (high carbon high chromium). Taguchi based desirability function analysis engaged in establishing the optimal process parameters with multi-objectivefunction in order to maximize the tensile strength and the nugget hardness. The welding parameter of optimum level wasattained by the highest composite desirability value. An optimal level of welding parameters acquired the tool rotation speedat 1200 rpm, traverse speed at 30 mm/min, and the pentagonal tool pin profile. Further, ANOVA (analysis of variance)implemented to intimate the major impact of welding parameters on the output responses (tensile strength and nuggethardness). An outcome perceived that the tool pin profiles and tool rotational speed are the important consequence factors tomanipulate the mixed output responses. Contour plots and mean effect show that the interaction of parameters of welding onthe required output response.
Abstract
The present investigation is to optimize the welding parameters designed for friction stir welding (FSW) of aluminiummagnesium alloy (AA5052). The authentic configuration of automated linear friction stir welding machine used to weld theAA5052. The experiments were conducted by selecting the different welding process parameters like tool rotation speed (rpm),traverse speed (mm/min), and tool pin profiles. The pin profile made with ceramic tool type (high carbon high chromium). Taguchi based desirability function analysis engaged in establishing the optimal process parameters with multi-objectivefunction in order to maximize the tensile strength and the nugget hardness. The welding parameter of optimum level wasattained by the highest composite desirability value. An optimal level of welding parameters acquired the tool rotation speedat 1200 rpm, traverse speed at 30 mm/min, and the pentagonal tool pin profile. Further, ANOVA (analysis of variance)implemented to intimate the major impact of welding parameters on the output responses (tensile strength and nuggethardness). An outcome perceived that the tool pin profiles and tool rotational speed are the important consequence factors tomanipulate the mixed output responses. Contour plots and mean effect show that the interaction of parameters of welding onthe required output response.
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