Simulation of Temperature Field during Double-sided Multi-layer TIG Welding and Determination of Its Thermal Efficiency
In order to provide effective guarantee for the prediction of residual stress and deformation after welding process of large-sized aluminum alloy structures, temperature field and thermal efficiency during double-sided multi-layer TIG welding of aluminum alloy was studied. By integratedly considering temperature-depended material properties, convection, radiation, filling rate of solders, et al, numerical analysis about the form of molten pool and temperature field was given. Element birth and death technique was taken during the simulation. Double-sided multi-layer TIG welding experiment was carried out and sample of cross section of weld seam after welding was prepared. By trying different thermal efficiency for calculation, simulation result consistent with experimental result was obtained finally, making the present thermal efficiency as the aim result for study. Confirmation was given by comparing temperature value from experiment with simulation one.
Double-sided multi-layer TIG welding Temperature field Molten pool Thermal efficiency
M.M.Huang D.W.Zuo H.F.Wang X.F.Li M.Wang
College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics & Astronautics,Nanjing,210016,China
国际会议
常州
英文
532-536
2009-11-19(万方平台首次上网日期,不代表论文的发表时间)