Indexed In Scopus
  Scopus ID: 21100926589

Numerical Simulation of Friction Stir Welding Process to Investigate the Effect of a Conical Pin Tool with a Flat and Conical Shoulder on Heat Transfer

Amit Yadav, Ajai Jain and Rajiv Verma

Abstract

Friction stir welding (FSW) is a well emerged solid state joining process and requires continuous improvements. Since each tool geometry produces a different temperature distribution profile and moves the weld material differently, the current study considers a conical pin tool with a flat and conical shoulder to study its effect on heat transfer for a lap joint. For this, AA6061 material, along with its temperature-dependent properties, is considered. The geometric modeling is performed in Solidworks® 2017 and the numerical simulation in Computational Fluid Dynamics (CFD) software, Ansys® 19.2 R3 (FLUENT), utilizing the Finite Volume Method (FVM) approach. The result indicates that the high temperature contour lines at the conical shoulder surface are dispersed more towards the trailing side. At the transverse plane, temperature contour lines lean more towards the advancing side (AS). It is found that higher temperature is generated on the trailing AS, high temperature gradient on the leading side, maximum heat generation close to the tool shoulder region and the temperature decreases from top to bottom surface along the workpiece thickness.

Published on: April 14, 2023
doi: 10.17756/nwj.2023-s1-047
Citation: Yadav A, Jain A, Verma R. 2023. Numerical Simulation of Friction Stir Welding Process to Investigate the Effect of a Conical Pin Tool with a Flat and Conical Shoulder on Heat Transfer. NanoWorld J 9(S1): S239-S242.

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