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Parameter Design for TIG Welding of AL-65032 Alloy Using Taguchi Technique


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

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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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  • Parameter Design for TIG Welding of AL-65032 Alloy Using Taguchi Technique

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Authors

G. Haragopal
Dept. of Mechanical Engg., CBIT, Gandipet, Hyderabad, India
P. V. R. Ravindra Reddy
Dept. of Mechanical Engg., CBIT, Gandipet, Hyderabad, India
G. Chandra Mohan Reddy
Mahatma Gandhi Institute of Technology, Gandipet, Hyderabad, India
V. V. Satyanarayna
Sagar Institute of Technology, Chevella, Hyderabad, India
J. V. Subrahmanyam
Vasavi College of Engg., Ibrahimbagh, Hyderabad, India

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.