IJERT-EMS
IJERT-EMS

Thermal Analysis of Friction Stir Welding


Thermal Analysis of Friction Stir Welding
Authors : I. Ajit Kumar, Dr. M. V. Mallikarjuna
Publication Date: 02-02-2015

Authors

Author(s):  I. Ajit Kumar, Dr. M. V. Mallikarjuna

Published in:   International Journal of Engineering Research & Technology

License:  This work is licensed under a Creative Commons Attribution 4.0 International License.

Website: www.ijert.org

Volume/Issue:   Vol. 4 - Issue 02 (February - 2015)

e-ISSN:   2278-0181

Abstract

Friction stir welding is a solid state joining process where the metal is not melted. It is used when the original metal characteristics must remain unchanged as much as possible. It mechanically intermixes the two pieces of the metal at the place of the join, then softens them so the metal can be fused using mechanical pressure, much like joining clay, dough or plasticine. It is primarily used on aluminium, and most often on large pieces that cannot be easily heat treated after welding to recover temper characteristics. In the present work, Finite Element Analysis is performed for Friction Stir Welding of Aluminium and Copper. The welds are produced by varying the process parameters viz., the rotational speed at 900 revolutions per minute and the welding speed varied between 60 mm/min and 80 mm/min. Then Thermal analysis is performed. A parametric model with the plates and cutting tool is done in Creo-2. The effects of different tool pin profiles on the friction stir welding are also considered for analysis. Different tool pin profiles are square and circular. For this purpose we created a simple model of Friction stir welding tool and two work pieces to be joined by butt joint using Creo software and Thermal analysis is done on them.

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