The Effect of Joule Heat on Coupling Temperature Field of Friction Stir Welding

Abstract:

Based on the friction stir welding rig,the temperature field model was established by COMSOL Multiphysics under the coupling effect of joule-heat and friction heat. The coupled temperature field distribution and variation rule of the analysis model were simulated and analyzed under current-carrying or without current. The results show that the maximum temperature mainly distributes the contact area of the pin tool and work piece. The distribution of the temperature and isothermal layer with current is basically same with non current. The temperature distribution area of shoulder with current gets larger than without current condition. Under the constant welding velocity,axial force,rotation velocity and displacement,the maximum temperature produced by coupling function of joule-heat and friction heat is much higher than the one,which engendered by friction heat.

• Periodical: Advanced Materials Research (Volumes 941-944)
• Pages: 2043-2046
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.941-944.2043
• Online since: June 2014
• Authors: Jie Yang, Lin Dong*, Xing Chun Tian
• Keywords: COMSOL Multiphysics, Coupling, Current-Carrying, Temperature Field, Welding Velocity

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