弹簧钢点焊熔核温度场的有限元模型

吉林大学学报(工学版) ›› 2000, Vol. ›› Issue (4): 12-16.

Study on the Infinite-unit Model of Spring Steel Spot Welding Nugget Thermal Field

XU Guo-cheng, ZHAO Xi-hua

College of Material Science & Engineering, Jilin University of Technology, Changchun 130025, China

Received:1999-10-29 Online:2000-10-25

Abstract

Abstract: The infinite unit model of spot welding nugget thermal field is set up with 65 Mn steel.The effect of contact resistance,liquid nugget temperature and phase transformation latent heat on spot welding nugget thermal field is fully considered.This model can be used to study thermal process of spring steel spot welding systematically,providing theoretical basis for designing spot welding technology parameters and numerical prediction of microstructure and properties of spring steel spot welding.Experiments show the similar results which are matched between the theoretical calculation and the experiments.

Key words: spring steel, spot welding nugget, thermal field, infinite unit model

CLC Number:

TG453+.9

XU Guo-cheng, ZHAO Xi-hua . Study on the Infinite-unit Model of Spring Steel Spot Welding Nugget Thermal Field[J].吉林大学学报(工学版), 2000, (4): 12-16.

References

[1] 赵熹华.弹簧钢电阻点焊研究［J］.焊接学报,1996,17(2):128-132.
[2] 徐国成.65Mn 弹簧钢点焊接头组织及其分布［J］.焊接,1996(2):5-7.
[3] 王春生.异质材料点焊过程电热搁合数值分析［J］.吉林工业大学自然科学学报,1999,29(4):29-34.
[4] Alcini W V. Experimental measurement of liquid nugget convection in spot welding［J］.Welding Journal,1990(4):177-180.

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