Experimental and Numerical Analysis of The Effect of Preheating in Friction Stir Welding
Md. Parwez Alam1, A. N. Sinha2

1Md Parwez Alam, Department of Mechanical. Engineering National Institute of Technology, Patna (Bihar), India.
2Amar Nath Sinha, Department of Mechanical. Engineering National Institute of Technology, Patna (Bihar), India.

Manuscript received on 30 June 2019 | Revised Manuscript received on 05 July 2019 | Manuscript published on 30 July 2019 | PP: 1665-1669 | Volume-8 Issue-9, July 2019 | Retrieval Number I7824078919/19©BEIESP | DOI: 10.35940/ijitee.I7824.078919
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Friction stir welding has been frequently used for fabrication of low melting point materials. Nevertheless, it is capable to join thin sheet of high melting point materials such as stainless steel, titanium etc. but tool wear rate is high. A Heat-assisted backing plate (HABP) was developed to preheating the welded specimen. In this paper, a modified 3D FE model was established to simulate the heat-assisted backing plate of friction stir welding by using ANSYS APDL to study of the temperature distribution of workpiece. Numerical simulation was defined by six different load steps for preheating, plunge, dwell, traverse, pull out of tool and cooling stage. Observations of preheated friction stir welding were compared with traditional friction stir welding results. It was found that the preheated friction stir welding increased 7.39 % and 7.55 % of peak temperature as compared to traditional friction stir welding in FEA and experimental respectively. In addition, preheating improve the uniform temperature distribution along the thickness of welded joint.
keyword: Friction Stir Welding, Heat Assisting Backing Plate, Preheating, Numerical Simulation, Temperature Distribution.

Scope of the Article: Welding Technology