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Parametric Optimization of Friction Stir Lap Welding of AA5083-AA6082 Using Multi Criteria Decision Making Method


Affiliations
1 Department of Mechanical Engineering, S.V.U College of Engineering, Tirupathi, Andhra Pradesh, India
     

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Friction Stir weld joint exhibits better quality and properties compared to other fusion welding techniques. Dissimilar lap joining process is considered as a challenge when compared to welding of similar materials due to variations in the chemical composition and mechanical properties of the joining materials. In this project AA 6082-T6 and AA 5083-H111 are joined in lap joint configuration using H13 tool steel with taper threaded pin profile by FSLW as per Taguchi design. Process parameters considered are Tool Rotational Speed, Welding Speed and Tool Tilt Angle. FSLW is conducted on Knee Type Vertical Milling machine FN2V. Mechanical properties like Shear Strength, Peak Load and Elongation are measured by shear tensile test. Hardness at the weld zone is also determined by Vickers Hardness test. Multiple responses are optimized by using TOPSIS method and best Process Parameters are evaluated.


Keywords

Lap Joint, H13 Tool Steel, FSLW, Process Parameters, Shear Tensile Test, Hardness Test, TOPSIS.
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  • Parametric Optimization of Friction Stir Lap Welding of AA5083-AA6082 Using Multi Criteria Decision Making Method

Abstract Views: 238  |  PDF Views: 3

Authors

P. Hema
Department of Mechanical Engineering, S.V.U College of Engineering, Tirupathi, Andhra Pradesh, India
P. Yamini Priya
Department of Mechanical Engineering, S.V.U College of Engineering, Tirupathi, Andhra Pradesh, India
M. Reddeiah
Department of Mechanical Engineering, S.V.U College of Engineering, Tirupathi, Andhra Pradesh, India

Abstract


Friction Stir weld joint exhibits better quality and properties compared to other fusion welding techniques. Dissimilar lap joining process is considered as a challenge when compared to welding of similar materials due to variations in the chemical composition and mechanical properties of the joining materials. In this project AA 6082-T6 and AA 5083-H111 are joined in lap joint configuration using H13 tool steel with taper threaded pin profile by FSLW as per Taguchi design. Process parameters considered are Tool Rotational Speed, Welding Speed and Tool Tilt Angle. FSLW is conducted on Knee Type Vertical Milling machine FN2V. Mechanical properties like Shear Strength, Peak Load and Elongation are measured by shear tensile test. Hardness at the weld zone is also determined by Vickers Hardness test. Multiple responses are optimized by using TOPSIS method and best Process Parameters are evaluated.


Keywords


Lap Joint, H13 Tool Steel, FSLW, Process Parameters, Shear Tensile Test, Hardness Test, TOPSIS.

References