上海交通大学学报

上海交通大学学报（自然版） ›› 2015, Vol. 49 ›› Issue (01): 80-85.

• 金属学与金属工艺 • 上一篇    下一篇

热成形钢与低碳钢电阻凸焊的数值模拟

万子轩1，王敏1，焦海伦1，高柏恩2，陆昕婷2   

  1. （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. 上海翼锐汽车科技发展有限公司， 上海 201814）
  • 收稿日期:2014-06-03
  • 基金资助:

    上海市汽车工业科技发展基金资助项目（1102）

Numerical Simulation of Projection Welding Between Hot-Stamped Steel and Low-Carbon Steel

WAN Zixuan1,WANG Min1,JIAO Hailun1,GAO Boen2,LU Xinting2   

  1. (1. Shanghai Key Laboratory of Materials Laser Processing and Modification, Shanghai Jiaotong University, Shanghai 200240, China; 2. Shanghai Yirui Automobile Technology Co. Ltd., Shanghai 201814, China)
  • Received:2014-06-03

摘要：

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.

关键词: 热成形钢, 低碳钢, 电阻凸焊, 温度场, 应力场, 熔核直径

Abstract:

Abstract： 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.

Key words: projection welding, temperature field, stress field, nugget size,  hot-stamped steel, low-carbon steel

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