锻压技术

1060铝板圆台件凸模支撑渐进成形临界成形角的研究

英文标题：Study on critical forming angle in progressive forming with punch support for 1060Al plate conical frustum parts

作者：金志浩高锦张郑璐恺

单位：1.东南大学材料科学与工程学院江苏省先进金属高技术研究重点实验室 2.南京工程学院机械工程学院

分类号：TG379.6

出版年,卷(期):页码：2022,47(6):99-106

摘要：

基于ANSYS/LS-DYNA分析平台构建凸模支撑单道次渐进成形圆台件的有限元模型，利用数值模拟和实验方法研究凸模支撑渐进成形圆台件的壁厚均匀临界成形角。以高径比为0.5的圆台件为对象，研究不同圆台直径和原始坯料厚度的圆台件的临界成形角，分析了圆台直径和原始坯料厚度对临界成形角的影响。结果表明，随着圆台直径增大，其临界成形角逐渐减小；随着原始坯料厚度增大，其临界成形角逐渐增大。通过多元线性回归求解临界成形角关于原始坯料厚度和圆台直径的推算公式，经实验验证依据该公式可在一定范围内快速获得圆台临界成形角，为实际生产中获得壁厚分布均匀的制件的工艺设计提供依据。

Based on ANSYS/LS-DYNA analysis platform, the finite element model of punch supported single pass progressive forming conical frustum part was established, and its critical forming angle of wall thickness uniformity was studied by numerical simulation and experimental methods. Then, for the conical frustum part with the height diameter ratio of 0.5, the critical forming angles with different conical frustum diameters and original blank thicknesses were studied, and the influences of conical frustum diameter and original blank thickness on the critical forming angle were analyzed. The results show that the critical forming angle decreases gradually with the increasing of original conical frustum diameter and increases with the increasing of blank thickness. The calculation formula of critical forming angle with respect to original blank thickness and conical frustum diameter is solved by multiple linear regression. According to the experiment verification, the critical forming angle of conical frustum can be quickly obtained within a certain range, which provides a basis for process design of parts with uniform wall thickness distribution in actual production.

基金项目：

先进数控技术江苏省高校重点建设实验室开放基金资助项目（KXJ05017）

金志浩（1996-），男，硕士研究生 E-mail：jzh192039@sina.com 通信作者：高锦张（1963-），男，硕士，副教授 E-mail：101005299@seu.edu.cn

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