Experimental Study on Microstructure of Friction Stir Welding of AA6061
- September 29, 2018
- Posted by: RSIS
- Category: Mechanical Engineering
International Journal of Research and Scientific Innovation (IJRSI) | Volume V, Issue IX, September 2018 | ISSN 2321–2705
P Ranjith Reddy1, Y Rishwanth Reddy2, M Sai Sreekar3, B Rajashekar4, G Sucharitha5
1,2,3,4- Students, 5-Assistant Professor, Department of Mechanical Engineering, Bharath Institute of Higher Education and Research, Chennai-600073, India
Abstract—-Friction stir welding, a solid state joining technique, is widely being used for joining Aluminium alloys for aerospace, marine, automotive and many other applications of commercial importance. Friction stir welding (FSW) can produce better mechanical properties in the weld zone compared to other conventional welding techniques. Later the best composition of the material will be selected from test results and this will be used as the main tool in friction stir welding. The material which is to be welded is also made up of same composition used in the tool. Friction stir welding (FSW) can produce better mechanical properties in the weld zone compared to other conventional welding techniques the tool serves primary functions: (a) heating of workpiece, (b) deform the material (c) movement of deform material to produce the joint. Scanning Electron Microscopy test has been performed to study the microstructure of the FSW produced by our tool. Friction stir welding can be widely applied in Aircrafts, rockets, automobiles, robotics, etc.
Keywords—-metal matrix composites, microstructure, SEM test, friction stir welding
AA6061 is normal hardened aluminium alloy containing magnesium and silicon as its major alloying elements. Originally called “Alloy 61S”, it was developed in 1935. It has good mechanical properties and exhibits good weldability. It is one of the most common alloys of aluminium for general-purpose use. It is commonly available in pre-tempered grades such as 6061-O (annealed), tempered grades such as 6061-T6 (solutionized and artificially aged) and 6061-T651 (solutionized, stress-relieved stretched and artificially aged).