锻压技术

1060铝板单道次渐进成形圆孔翻边高度与壁厚分布的研究

英文标题：Study on height and wall thickness distribution of hole-flanging by single-pass incremental forming for 1060 aluminum plate

作者：顾仲高锦张

单位：东南大学

关键词：渐进成形圆孔翻边翻边壁厚单道次翻边高度

分类号：TG379.6

出版年,卷(期):页码：2019,44(4):48-56

摘要：

基于DYNAFORM软件，对一定厚度的1060铝板单道次渐进成形圆孔翻边进行研究。探究了不同翻边孔径dm时，预制孔径d0对翻边高度和壁厚分布规律的影响。结果表明：当翻边孔径dm一定时，翻边制件的壁厚分布随着预制孔径d0的改变呈现一定的变形特征；其典型的成形特征包括3种：线性减薄、均匀分布、中部减薄。分析得出不同翻边孔径dm时的单道次渐进成形圆孔翻边临界预制孔径d0临界及翻边高度的计算公式。结果发现：当板料不发生中部减薄时，翻边高度与理论计算公式吻合较好；板料发生中部减薄时，其翻边高度与理论计算公式误差较大，需要进行修正。使用渐进成形数控机床进行实体实验，实验结果验证了模拟结果的可信性。

The single-pass incremental forming of hole-flanging for 1060 aluminum plate with a certain thickness was studied by software DYNAFORM, and the influences of prefabricated hole diameter d0 on the distribution rules of flanging height and wall thickness with different flanged hole diameters dm were investigated. The results show that when the flanged hole diameter dm is constant, the wall thickness distribution of flanged part exhibits a certain deformation characteristics while changing the prefabricated hole diameter d0. The typical forming characteristics include linear thinning, uniform distribution and central thinning, and the calculation formula of the critical prefabricated hole diameter d0临界 and the flanging height of single-pass incremental forming of hole flanging under different flanged hole diameters dm were obtained. The results find that when the plate is not thinned in the middle, the flanging height is in good agreement with the theoretical calculation formula, and when the plate is thinned in the middle, the flanging height is greatly different from the theoretical calculation formula and needs to be corrected. Furthermore, the physical experiments were conducted by a incremental forming CNC machine tool, and the experimental results verify the credibility of the simulation results.

基金项目：

先进数控技术江苏省高校重点建设实验室基金开放项目(KXJ05017)

顾仲(1995-)，男，硕士研究生 E-mail：willixoss123@gmail.com 通讯作者：高锦张(1963-)，男，硕士，副教授 E-mail：101005299@seu.edu.cn

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