Manufacturing Technology Today

G. Haragopal ¹, P. V. R. Ravindra Reddy ¹, G. Chandra Mohan Reddy ², V. V. Satyanarayna ³, J. V. Subrahmanyam ⁴

Affiliations
1 Dept. of Mechanical Engg., CBIT, Gandipet, Hyderabad, IN
2 Mahatma Gandhi Institute of Technology, Gandipet, Hyderabad, IN
3 Sagar Institute of Technology, Chevella, Hyderabad, IN
4 Vasavi College of Engg., Ibrahimbagh, Hyderabad, IN

Abstract

Al-65032 is an Aluminum alloy used for construction of aerospace structures such as wings. This alloy can be welded by Tungsten Inert Gas (TIG) or Metal Inert Gas (MIG) welding. Hence establishment of welding parameters and their optimization for good quality weld is utmost important factor. In this work; Taguchi parameter design is used to design the process parameters that optimise the mechanical properties of weld specimen. The process parameters of the TIG welding setup considered are gas pressure, current, groove angle and pre-heat. Assigning the process parameters to L-9 orthogonal array, experiments are conducted and the optimization condition is obtained along with the identification of most influencing parameters using S/N analysis and mean response analysis. ANOVA is also carried out to reaffirm the same. A confirmation test is conducted to ascertain the optimized condition.

Keywords

Al 65032, TIG, Taguchi, Orthogonal Arrays, S/N Analysis, ANOVA.

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