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6061铝合金板料圆孔翻边渐进成形
英文标题:Incremental forming of round hole flanging for 6061 aluminum alloy sheet
作者:张星 王进 王勇强 王梦婷 王军 
单位:青岛理工大学 
关键词:6061铝合金 渐进成形 圆孔翻边 翻边系数 多道次成形 
分类号:TG386
出版年,卷(期):页码:2021,46(8):55-61
摘要:

 采用普通渐进成形技术研究6061铝合金圆孔的翻边性能,探究了不同预制孔直径、不同成形路径的多道次渐进成形对6061铝合金翻边高度和壁厚分布的影响规律,探讨了获取6061铝合金的极限翻边件的方法。实验结果表明:单道次渐进成形板料的成形性能较差,且中部存在减薄带,但翻边系数仍高于普通渐进成形;通过合理设计多道次渐进成形可优化成形性能。3种方案中,变高度渐近成形翻边路径相比变角度渐近成形和单道次渐近成形的翻边路径,可获得尺寸较大的制件;变角度渐近成形翻边路径相比于其他两种路径,可避免壁厚过度减薄,从而获得壁厚相对均匀的制件;3道次渐近成形相比于2道次和单道次渐近成形,所获得的翻边件的质量更好。

 The flanging performance of 6061 aluminum alloy round hole was studied by ordinary incremental forming technology. Then, the influence laws of multi-pass incremental forming with different prefabricated hole diameters and different forming paths on the flange height and wall thickness distributions of 6061 aluminum alloy were investigated, and the method of obtaining the limit flanging parts 6061 aluminum alloy was discussed. The experimental results show that the forming performance of sheet in single-pass incremental forming is poor, and there is a thinning band in the middle, but the flanging coefficient is still higher than that of ordinary incremental forming. Therefore, the forming performance is optimized by designing multi-pass incremental forming reasonably. Among the three schemes, the flanging path in variable height incremental forming obtains larger parts compared with the flanging paths in variable angle incremental forming and single-pass incremental forming, and compared with the other two paths, the flanging path in variable angle incremental forming avoids excessive thinning of wall thickness to obtain the parts with relatively uniform wall thickness. However, compared with two-pass and single-pass incremental forming, the quality of flanging parts obtained by three-pass incremental forming is better. 

基金项目:
国家自然科学基金资助项目(51205217,51775289);山东省重点研发计划项目(2019GGX102023)
作者简介:
张星(1993-),男,硕士研究生 E-mail:zhangxing85720@163.com 通信作者:王进(1978-),男,博士,副教授 E-mail:jinwangqtech@163.com
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