http://iaeme.com/Home/journal/IJMET 290 [email protected] International Journal of Mechanical Engineering and Technology (IJMET) Volume 8, Issue 7, July 2017, pp. 290–297, Article ID: IJMET_08_07_034 Available online at http://iaeme.com/Home/issue/IJMET?Volume=8&Issue=7 ISSN Print: 0976-6340 and ISSN Online: 0976-6359 © IAEME Publication Scopus Indexed EXPERIMENTAL INVESTIGATIONS OF TIG AND FRICTION STIR WELDING PROCESS FOR AA7075 Surya Prakash Assistant Professor, Department of Mechanical Engineering MLR Institute of Technology, Hyderabad, Telangana, India B Prashanth Assistant Professor, Department of Mechanical Engineering MLR Institute of Technology, Hyderabad, Telangana, India GVR Seshagirirao Associate Professor, Department of Mechanical Engineering Institute of Aeronautical Engineering, Hyderabad, Telangana, India J Anoop Assistant Professor, Department of Mechanical Engineering, Vardhaman College of Engineering, Hyderabad, Telangana, India ABSTRACT Aluminum alloys are welded using both tungsten inert gas (TIG) and friction stir welding (FSW) and investigating on parental metal. Friction Stir Welding (FSW) is a solid state welding process in which the relative motion between the tool and the work piece produces heat which makes the material of two edges being joined by plastic atomic diffusion. Tungsten Inert Gas welding process that uses the heat produced by an electric arc created between non consumable tungsten electrode and the weld pool. In this project an attempt is made to compare and investigate the influence of the process parameters of FSW and TIG on the mechanical properties of the welds. The tensile strength test and Vickers hardness, are considered for investigation of experiments conducted by maintaining constant depth of penetration of weld, tool speed and feed. The results indicate that the microstructure of the friction weld is different from the tungsten inert gas welded joint. The weld nugget consists of small grains in tungsten inert gas weld and those are found in friction stir welding. The tensile strength of weld joint in friction stir welding is more instead of tungsten inert gas welding. Hardness test of friction stir welding is more instead of tungsten inert gas welding where as in parental metal also. Key words: Aluminium alloy 7075, Friction Stir Welding, TIG welding, microstructure, weld nugget.
EXPERIMENTAL INVESTIGATIONS OF TIG AND FRICTION STIR WELDING PROCESS FOR AA7075
Jun 17, 2023
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