焊缝位置对拼焊板拉伸行为影响的解析预测

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材料工程 ›› 2011, Vol. 0 ›› Issue (10) : 33-37.

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论文

焊缝位置对拼焊板拉伸行为影响的解析预测

陈水生^1,2, 林建平¹

作者信息 +

An Analytical Model to Predict the Effect of Weld Location on Tensile Behaviors of Tailor Welded Blanks

CHEN Shui-sheng^1,2, LIN Jian-ping¹

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文章历史 +

摘要

分别定义综合伸长率和焊缝移动量来量化拼焊板单向拉伸行为。在不同焊缝初始位置条件下,分别建立了焊缝位置对综合伸长率和焊缝移动量影响的解析模型。为验证解析模型的正确性,采用有限元和实验法获得了焊缝位置对综合伸长率和焊缝移动的影响规律。结果表明,解析模型预测结果与实验、有限元结果相一致,综合伸长率和焊缝移动量都随着焊缝位置向拼焊板强侧移动而线性地增大,增大的速率取决于拼焊板的母材材料参数和厚度。解析模型揭示出综合伸长率和焊缝移动量影响因素及焊缝初始位置对拼焊板单向拉伸行为的影响规律。

Abstract

Entire elongation and weld line movement were defined to evaluate tensile properties of tailor-welded blanks(TWBs) respectively.Under different initial weld locations,the analytical models were developed to evaluate the entire elongation and the weld line movement of TWBs.To validate the analytical models,finite element analysis(FEA) and experiments were performed to investigate the influences of initial weld locations on the entire elongation and the weld line movement.The results show that the analytical results have a good agreement with the experiment and the simulation results.The entire elongation and the weld line movement increase linearly with the weld line moving closer to the stronger side of TWBs,and the variation rate depends on the material parameters and thickness of base sheets.Based on the proposed analytical model,the major influencing factors of the entire elongation and the weld line movement as well as their effects on tensile properties of TWBs can be revealed.

导出引用

陈水生, 林建平. 焊缝位置对拼焊板拉伸行为影响的解析预测[J]. 材料工程, 2011, 0(10): 33-37

CHEN Shui-sheng, LIN Jian-ping. An Analytical Model to Predict the Effect of Weld Location on Tensile Behaviors of Tailor Welded Blanks[J]. Journal of Materials Engineering, 2011, 0(10): 33-37

中图分类号： TH140.8

参考文献

[1] PADMANABHAN R,BAPTISTA A J,OLIVEIRA M C,et al.Effect of anisotropy on the deep-drawing of mild steel and dualphase steel tailor-welded blanks[J].Journal of Materials Processing Technology,2007,184(1-3):288-293.
[2] QIU X G,CHEN W L.The study on numerical simulation of the laser tailor welded blanks stamping[J].Journal of Materials Processing,2007,187-188 (12):128-131.
[3] CHOI Y,HEO Y,KIM H Y,et al.Investigations of weld-line movements for the deep drawing process of tailor welded blanks[J].Journal of Materials Processing Technology,2000,108(1):1-7.
[4] MEINDERS T,VAN DEN BERG A,HUETINK J.Deep drawing simulations of tailored blanks and experimental verification[J].Journal of Materials Processing Technology,2000,103(1):65-73.
[5] TANG B T,ZHAO Z,WANG Y.One-step FEM-based evaluation of weld line movement and development of blank in sheet metal stamping with tailor-welded blanks[J].The International Journal of Advanced Manufacturing Technology,2007,35 (3-4):268-279.
[6] CHENG C H,CHAN L C,CHOW C L.Weldment properties evaluation and formability study of tailor-welded blanks of different thickness combinations and welding orientations[J].Journal of Materials Science,2007,42(15):5982-5990.
[7] ZHAO K M,CHUN B K,LEE J K.Finite element analysis of tailor-welded blanks[J].Finite Elements in Analysis and Design,2001,37(2):117-130.
[8] ASTM E 646-93,Standard test method for tensile strain-hardening exponents (n-values) of metallic sheet metals[S].
[9] RAYMOND,S D,WILD P M,BAYLEY C J.On modeling of the weld line in finite element analyses of tailor-welded blank forming operations[J].Journal of Materials Processing Technology,2004,147(1):28-37.
[10] GARWARE M,KRIDLI G,MALLICK P.Tensile and fatigue behavior of friction-stir welded tailor-welded blank of aluminum alloy 5754[J].Journal of Materials Engineering and Performance,2010,19(8):1161-1171.
[11] JORGE R M N,ROQUEA A P,VALENTE R A F,et al.Study of hydro formed tailor-welded tubular parts with dissimilar thickness[J].Journal of Materials Processing Technology,2007,184(1-3):363-371.