Transactions of Nanjing University of Aeronautics & Astronautics
Analytical Model of Temperature Field in Unsteady Stage of Friction Plug Welding
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Abstract:
The temperature field in unsteady phase greatly affects the quality of friction plug welding (FPW). An analytical model is put forward to correlate the process parameters and the temperature field in unsteady phase of FPW. Applying the von Mises criterion for plastic deformation and linearizing the heat flux, the model is achieved by Laplace transformation. The predicated peak temperature and peak time agree with the experiment data, with errors of about 4% and 8%, of AA7075-T6 FPW.
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TG453
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