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International Heat Transfer Conference 13
Graham de Vahl Davis (open in a new tab) School of Mechanical and Manufacturing Engineering, University of New South Wales, Kensington, NSW, Australia
Eddie Leonardi (open in a new tab) Computational Fluid Dynamics Research Laboratory, School of Mechanical and Manufacturing Engineering, The University of New South Wales, Sydney, Australia 2052

ISSN Online: 2377-424X

ISBN CD: 1-56700-226-9

ISBN Online: 1-56700-225-0

ANALYSIS OF TEMPERATURE DISTRIBUTION AND PLASTIC FLOW DURING SPOT FRICTION STIR WELDING

page 8
DOI: 10.1615/IHTC13.p13.30
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ABSTRAKT

Friction Stir Welding (FSW) is a new metal-joining process, and a numerical simulation code to calculate optimal welding conditions is desired. In this paper, we analysed temperature distribution and plastic flow during spot friction stir welding (SFW) process using a particle method. Calculation results indicate that, for the case of a rotating tool without a pin, heat is generated near the shoulder of the rotating tool and the temperature distribution is almost circler pattern. Materials of metal plates are mixed below the rotating tool by the effect of movement of the rotating tool. Metals near the outside of the rotating tool protrude by the effect of plunging force of the rotating tool. When the rotating tool has a pin, almost all region below the rotating tool is high temperature and the mixing of two metal plates is strong by the effect of the pin. These calculation results are similar to experimental results. Mixing of metals is examined by changing parameter of the SFW process conditions. When the rotating speed is high, the mixing of two metal plates is strong. The effect of the tool moving-down speed is small. The relations among process conditions can be used to find the optimal welding conditions.

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