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Performance of Plasma Transferred ARC Hard Faced Friction Stir Welding Tools for Joining AA7075-T6 Aluminium Alloy


Affiliations
1 Centre for Materials Joining & Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University, Annamalainagar, Tamil Nadu, India
     

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In the present work an attempt was made to develop low cost high temperature wear resistance hard facing tools. The hard facing was applied on mild steel rod using chromium carbide powder and tungsten carbide powder by plasma transferred arc (PTA) hard facing technique. A comparative study was done to study the performance of hard facing tools with conventional tools. In this work, friction stir welding of AA7075-T6 plate of 6 mm thickness was investigated with an aim to understand the performance of tool materials on weld microstructure and tensile properties. The results showed that sound joints can be achieved with a joint efficiency of 83% while using PTA hard faced tools with careful selection of optimized process parameters.

Keywords

Plasma Transferred Arc Hard Facing, Friction Stir Welding, Aluminum Alloy, Tensile Properties.
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  • Performance of Plasma Transferred ARC Hard Faced Friction Stir Welding Tools for Joining AA7075-T6 Aluminium Alloy

Abstract Views: 216  |  PDF Views: 1

Authors

A. Baskaran
Centre for Materials Joining & Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University, Annamalainagar, Tamil Nadu, India
K. Shanmugam
Centre for Materials Joining & Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University, Annamalainagar, Tamil Nadu, India
V. Balasubramanian
Centre for Materials Joining & Research (CEMAJOR), Department of Manufacturing Engineering, Annamalai University, Annamalainagar, Tamil Nadu, India

Abstract


In the present work an attempt was made to develop low cost high temperature wear resistance hard facing tools. The hard facing was applied on mild steel rod using chromium carbide powder and tungsten carbide powder by plasma transferred arc (PTA) hard facing technique. A comparative study was done to study the performance of hard facing tools with conventional tools. In this work, friction stir welding of AA7075-T6 plate of 6 mm thickness was investigated with an aim to understand the performance of tool materials on weld microstructure and tensile properties. The results showed that sound joints can be achieved with a joint efficiency of 83% while using PTA hard faced tools with careful selection of optimized process parameters.

Keywords


Plasma Transferred Arc Hard Facing, Friction Stir Welding, Aluminum Alloy, Tensile Properties.