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采用数值模拟的方法研究了热输入量对侧梁焊接变形量的影响 ,得到了热输入量影响焊接变形的规律 ,为实际生产过程中控制高速动力车转向架构架的焊接质量提供了数值依据
The influence of heat input on the welding deformation of side sill was studied by numerical simulation. The law of heat input affecting the welding deformation was obtained, which provided a numerical basis for controlling the welding quality of bogie frame of high-speed motor vehicle in the actual production process