Effect of MIG Welding Parameters on Mechanical Properties of Dissimilar Weld Joints of AISI 202 and AISI 316 Steels

ADMT Journal

مقاله 6، دوره 13، شماره 2، شهریور 2020، صفحه 51-64   

نوع مقاله: Original Article

نویسندگان

Venkatratnam Dirisala^{* 1}؛ KESAVA RAO V.V.S²

¹Department of Mechanical Engineering, Sri Mittapalli College of Engineering, Guntur, India

²Department of Mechanical Engineering, Andhra University, Visakhapatnam, India

چکیده

In the present work dissimilar joints of AISI 202 and AISI 316steels are produced using Metal Inert Gas (MIG) welding.  Welding current, wire feed rate, flow rate of gas and edge included angle are considered as input parameters and tensile strength, Impact strength and Maximum bending load are considered as output responses. Response Surface Method (RSM) is adopted using Central Composite Design (CCD) and 31 experiments were performed for 4 factors and 5 levels. Analysis of Variance (ANOVA) is carried out at 95% confidence level and coefficient of determination (R²) of 0.94 is obtained for all the output responses. Effect of welding parameters on output responses are studied by drawing main effect plots. Dominating parameters are identified using contour plots and surface plots are drawn to find the optimal solution. Optimal weld parameters are identified using Response optimizer.

کلیدواژه‌ها

AISI 202؛ AISI 316؛ Dissimilar Welds؛ MIG Welding؛ Response Surface Method؛ Steels

مراجع

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