摘要
利用专用有限元分析软件SORPAS模拟了热成形钢与低碳钢电阻凸焊熔核形成的过程,定性及定量地分析了2种材料在电阻凸焊过程中温度场、应力场的参数变化规律以及最终凸焊接头的熔核直径,并将模拟结果与实验结果进行对比.结果表明:模拟过程中出现了熔核偏移的现象;凸焊接头熔核直径的变化趋势均与其实验结果较吻合.
A kind of software named SORPAS has been applied in this paper to simulate the formation process of nugget in projection welding between hot-stamped steel and low-carbon steel. Through the simulation, some changing rules about the temperature field and stress field during the formation process of nugget have been discovered both qualitatively and quantitatively, and the diameter of the final nugget has also been obtained. The results of the simulation show both the shift of nugget to the hot-stamping steel sheet of the welding assembly and the change of nugget size with different welding currents applied correspond well with the results obtained by experiments.
出处
《上海交通大学学报》
EI
CAS
CSCD
北大核心
2015年第1期80-85,共6页
Journal of Shanghai Jiaotong University
基金
上海市汽车工业科技发展基金资助项目(1102)
关键词
热成形钢
低碳钢
电阻凸焊
温度场
应力场
熔核直径
hot-stamped steel
low-carbon steel
projection welding
temperature field
stress field
nugget size
