一种有效的焊接温度场数值模拟方法

An effective numerical simulation method on welding temperature field

应用有限元软件ANSYS对半椭球体热源作用下的焊接温度场进行仿真。将半椭球体热源模型的3个形状参数:长度参数、宽度参数和垂直参数分别独立变化,以单独考查每个形状参数对熔池形状的影响。结果表明:模型的长度参数和宽度参数是改变模拟结果中熔池形状的主要参数;垂直参数的变化对熔池形状无影响,但可以影响熔池的大小。

This paper simulated the welding temperature field under the semi-ellipsoidal heat source by applying the Finite Element Analysis Software (ANSYS). The influence on the weld pool shape by each shape parameter was studied individually through changing the three shape parameters: length parameter, width parameter and vertical parameter of the semi-ellipsoidal heat source model respectively. It turned out that length parameter and width parameter of the model were the main parameters to change the weld pool shape in the simulation result, the vertical parameter had no impact on the shape of weld pool except the size of the weld pool.