Analytical Model of Temperature Field in Unsteady Stage of Friction Plug Welding  

作　　者：YAN Chongjing ZHENG Yongle 

机构地区：[1]College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,P.R.China [2]Shanghai Aircraft Design and Research Institute,Shanghai 201206,P.R.China

出　　处：《Transactions of Nanjing University of Aeronautics and Astronautics》2019年第5期789-797,共9页南京航空航天大学学报（英文版）

摘　　要：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.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.

关 键 词：FRICTION PLUG welding(FPW) UNSTEADY STAGE temperature field ANALYTICAL model 

分 类 号：TG453[金属学及工艺—焊接]