Numerical Simulation on Electron Beam Welding Temperature Field of 6mm-thickness Heat-resisting Superalloy

A heat source model which composed by Gauss heat source model and projectile heat source has been developed to suit the finite element simulation on vacuum electron beam welding. GH4169 heat-resisting superalloy sheet with 6 mm thickness was investigated by the numerical simulation on vacuum electron beam deep penetration welding, and the characteristics of temperature distribution of electron beam welding in the heat-resisting superalloy and the heat cycle curves were obtained. The simulation result was consistent with the real weld. The established heat source model was proved feasible in calculation of the electron beam weld appearance characteristics.