锻压技术

凸轮构件多自由度摆动辗压成形规律与工艺设计

英文标题：Forming laws and process design for MDOF rotary forging of cam component

作者：石发兴1 2 韩星会1 2 3 庄武豪2 3

单位：（1.武汉理工大学材料科学与工程学院湖北武汉 430070 2.武汉理工大学现代汽车零部件技术湖北省重点实验室湖北武汉 430070）

关键词：凸轮构件多自由度摆动辗压成形两步成形预成形终成形

分类号：TG306

出版年,卷(期):页码：2024,49(12):113-120

摘要：

针对凸轮构件的外轮廊线复杂，难以通过塑性成形加工的问题，

根据其几何结构特点，提出采用两步多自由度摆动辗压成形工艺制造凸轮构件。设计了凸轮构件多自由度摆动辗压的预成形和终成形模具，并建立了

预成形和终成形有限元模型，通过有限元模拟揭示了金属流动、等效应变以及成形载荷演变规律。进行了凸轮构件多自由度摆动辗压的预成形和终成形工艺实验，结果表明，工艺实验结果与有限元模拟保持一致，这表明通过两步多自由度摆动辗压成形工艺制造凸轮构件是可行的。

For the problem that the cam components are difficult to be processed by plastic forming due to the complex outer contour,

based on its geometrical structure characteristics, a two-step

multiple degrees of freedom (MDOF) rotary forging process was proposed to manufacture the cam components, and the

pre-forming and final forming molds of MDOF rotary forging for cam components were designed. Then, their finite element models were established, and the evolution laws of metal flow, effective strain and forming load were revealed by the finite dement simulation. Furthermore, the pre-forming and final forming process experiments for MDOF rotary forging of cam components were carried out. The results show that the finite element simulation results are consistent with the experimental results, which indicates that it is feasible to manufacture cam components by two-step MODF rotary forging process.

基金项目：

基金项目:国家自然科学基金资助项目（U21A20131）；教育部创新团队发展计划项目（IRT17R83）

作者简介：石发兴（1999-），男，硕士 E-mail：1983868557@qq.com 通信作者：韩星会（1979-），男，博士，教授 E-mail：hanxinghuihlp@126.com

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