Abstract
This project involves the use of friction stir processing with a change in the number of passes on grain refinement of pure copper. FSP is a rising metal processing technique for manufacturing fine-grained structures. The project’s main goal was to determine the outcome of change in the number of passes and pass direction on the grain size and microstructure. The change in microstructure is accompanied by changes in properties like grain structure, tensile strength, and hardness. FSP has been done on 3-mm-thick pure copper plates, using a tungsten carbide tool of 18 mm diameter shoulder with a tapered pin of diameter 3 mm, a tool rotation speed of 1500 rpm, 2° tilt angle and tool traverse speed of 20 mm/min with the variable being the number of passes and pass direction. The optical microscopy, grain size measurements of the nugget region, and time–temperature plot is presented. The specimen with smaller grain sizes are further tested for tensile strength.
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Special thanks to Pandit Deendayal Petroleum University for providing an excellent research atmosphere to undergraduate students.
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Patel, N., Khimani, F., Badheka, V.J. (2021). Effect of Number of Passes and Pass Directions in Friction Stir Processing of Copper. In: Parwani, A.K., Ramkumar, P., Abhishek, K., Yadav, S.K. (eds) Recent Advances in Mechanical Infrastructure. Lecture Notes in Intelligent Transportation and Infrastructure. Springer, Singapore. https://doi.org/10.1007/978-981-33-4176-0_17
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