超高强度热成形钢电阻点焊的数值模拟  

Numerical Simulation in Resistance Spot Welding of Ultra-High Strength Hot-Formed Steel

作　　者：郑文[1] 王敏[1] 孔谅[1] 程轩挺 孙游 雷鸣[3] 

机构地区：[1]上海交通大学上海市激光制造与材料改性重点实验室,上海200240 [2]上海翼锐汽车科技有限公司,上海201814 [3]宝山钢铁股份有限公司技术中心,上海201900

出　　处：《上海交通大学学报》2012年第7期1074-1078,共5页Journal of Shanghai Jiaotong University

基　　金：上海汽车工业科技发展基金资助项目(1102)

摘　　要：利用SORPAS软件对超高强度热成形钢板建立了描述点焊熔核形成过程的轴对称有限元模型.通过数值模拟,定量揭示了热成形钢点焊过程中温度场、熔核直径等过程量的变化规律.对比模拟计算与实测结果表明,该模型是可行的,可为超高强度热成形钢的电阻点焊提供指导.Based on the software SORPAS, an axial symmetric finite element model for the resistance spot welding process （RSW） of ultra-high strength hot-formed steel （UHSS） was established. By numerical simulation, change rules of the temperature field, the nugget size, etc during the spot welding were dis-covered quantitatively. Comparing the numerical simulation results with the experimental measured ones, it was proved that the finite element model is feasible. It can also provide guidance for the RSW process of the UHSS.

关 键 词：超高强度热成形钢 电阻点焊 数值模拟 熔核直径 温度场 

分 类 号：TG453.9[金属学及工艺—焊接]