镁合金拼焊板拉深成形焊缝移动规律

王忠堂; 钱芳; 张士宏; 常荣辉

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镁合金拼焊板拉深成形焊缝移动规律
Weld Seam Movement of Magnesium Alloy Tailor-welded Blanks during Deeply Drawing
2009年29卷第3期页码：239-241
纸质出版日期： 2009 ，
DOI：

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[1]王忠堂,钱芳,张士宏,常荣辉.镁合金拼焊板拉深成形焊缝移动规律[J].特种铸造及有色合金,2009,29(03):239-241+192.

Wang Zhongtang1, Qian Fang1, Zhang Shihong2, et al. Weld Seam Movement of Magnesium Alloy Tailor-welded Blanks during Deeply Drawing[J]. Special Casting & Nonferrous Alloys, 2009,29(3):239-241.
[1]王忠堂,钱芳,张士宏,常荣辉.镁合金拼焊板拉深成形焊缝移动规律[J].特种铸造及有色合金,2009,29(03):239-241+192. DOI：

Wang Zhongtang1, Qian Fang1, Zhang Shihong2, et al. Weld Seam Movement of Magnesium Alloy Tailor-welded Blanks during Deeply Drawing[J]. Special Casting & Nonferrous Alloys, 2009,29(3):239-241. DOI：

摘要

采用有限元数值模拟软件对镁合金拼焊板拉深成形时焊缝移动规律进行了数值分析

建立了镁合金拼焊板筒形件拉深成形有限元模型。对AZ31与AZ80镁合金拼焊板拉深成形进行了数值模拟

分析了压边力及变形温度对焊缝移动规律的影响

得到了筒形件底部及侧壁法兰处焊缝的移动规律。结果表明

筒形件底部焊缝向AZ80侧移动

法兰及侧壁处向AZ31侧移动。模拟结果与试验结果吻合较好

镁合金拼焊板拉深成形时焊缝移动可以通过非均匀压边力或非均匀温度场来控制。

Abstract

An FEM model for magnesium alloy tailor-welded drawing was established on the basis of numerical analysis of weld seam movement by a commercial software

which was employed to simulate AZ31 and AZ81 magnesium alloy tailor welded drawing to understand role of bland holder force and deformation temperature on weld seam movement.The motion principle of weld seam at bottom of cup and at side wall and flange was obtained.The results indicate that weld seam moves towards AZ80 magnesium alloy at bottom of cup while it moves towards AZ31 magnesium alloy at side-wall and at flange.The simulated results are well in agreement with experimental ones.Weld seam movement of magnesium alloy tailor welded blanks drawing can be controlled by heterogeneous blank holder forces or heterogeneous temperature field.