高筋薄板构件多自由度摆动辗压成形规律与工艺研究

doi:10.3969/j.issn.1004-132X.2023.04.011

中国机械工程 ›› 2023, Vol. 34 ›› Issue (04): 464-474.DOI: 10.3969/j.issn.1004-132X.2023.04.011

高筋薄板构件多自由度摆动辗压成形规律与工艺研究

陈仲宝1，2;韩星会1，2;庄武豪1，2;胡亚雄1，2;陈铭章1，2

1.现代汽车零部件技术湖北省重点实验室，武汉，430070
2.武汉理工大学汽车工程学院，武汉，430070

出版日期:2023-02-25 发布日期:2023-03-17
通讯作者: 庄武豪（通信作者），男，1989年生，副研究员。研究方向为运载装备零部件精密成形制造技术。E-mail：zhuangwuhao@whut.edu.cn。
作者简介:陈仲宝，男，1997年生，硕士研究生。研究方向为摆动碾压成形工艺。E-mail：292931@whut.edu.cn。
基金资助:
国家自然科学基金(U21A20131，52005375)；中国博士后科学基金（2020M672429）；湖北省自然科学基金(2019CFA041)

Forming Law of Multi-degree-of-freedom Rotary Forging for High-rib Thin-plate Components and Process Planning

CHEN Zhongbao1，2;HAN Xinghui1，2;ZHUANG Wuhao1，2;HU Yaxiong1，2;CHEN Mingzhang1，2

1.Hubei Key Laboratory of Advanced Technology for Automotive Components，Wuhan，430070
2.School of Automotive Engineering，Wuhan University of Technology，Wuhan，430070

Online:2023-02-25 Published:2023-03-17

摘要/Abstract

摘要： 高筋薄板构件多自由度摆动辗压成形过程中金属流动十分复杂，导致高筋薄板构件筋高分布十分不均匀。根据双偏心套型摆动辗压机运动原理，探究摆动模做圆轨迹和螺旋线轨迹运动时摆动模与坯料的接触模式演化规律，提出了接触区形状数学计算方法。采用有限元模拟仿真技术揭示摆动模做圆轨迹和螺旋线轨迹运动时高筋薄板构件摆动辗压成形金属流动规律以及高筋生长规律，阐明摆动模运动、接触区变化、金属流动和高筋生长之间的关联关系。在此基础上，开展高筋薄板构件摆动辗压成形工艺试验，实现高筋薄板构件摆动辗压成形。研究结果表明，相比圆轨迹运动，摆动模做螺旋线轨迹运动能够减弱金属径向和切向流动，增强金属轴向流动能力，从而有效提高高筋薄板构件摆动碾压成形过程中金属轴向流动的均匀性，获得筋高分布均匀的高筋薄板构件。

关键词: 摆动辗压成形, 高筋薄板构件, 接触区形状, 金属流动规律

Abstract: The metal flow was very complicated in the multi-degree-of-freedom rotary forging processes for the high-rib thin-plate components， which led to the uneven distribution of the ribs heights. According to the motion principle of double eccentric rotary forging machines， the evolution law of contact pattern between rotary dies and billet was studied when rotary die moved with circular trajectory and spiral trajectory， and the mathematical calculation method of contact zone shape was proposed. The law of metal flow and the growth law of high ribs under circular trajectory rotary forging and spiral trajectory rotary forging were revealed by the finite element simulation， and the correlation between the motion of rotary die， contact zone， metal flow and the growth of high ribs were expounded. The rotary forging experiments of the high-rib thin-plate component were carried out. The results show that， compared with the circular trajectory rotary forging， the spiral trajectory rotary forging may weaken the radial metal flowing and tangential metal flowing， enhance the axial metal flowing， so as to obtain the high-rib thin-plate components with uniform rib heights.

Key words: , rotary forging, high-rib thin-plate component, contact zone shape shape, metal flowing pattern

中图分类号:

TG306

陈仲宝, 韩星会, 庄武豪, 胡亚雄, 陈铭章, . 高筋薄板构件多自由度摆动辗压成形规律与工艺研究[J]. 中国机械工程, 2023, 34(04): 464-474.

CHEN Zhongbao, HAN Xinghui, ZHUANG Wuhao, HU Yaxiong, CHEN Mingzhang, . Forming Law of Multi-degree-of-freedom Rotary Forging for High-rib Thin-plate Components and Process Planning[J]. China Mechanical Engineering, 2023, 34(04): 464-474.

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http://www.cmemo.org.cn/CN/Y2023/V34/I04/464

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高筋薄板构件多自由度摆动辗压成形规律与工艺研究

Forming Law of Multi-degree-of-freedom Rotary Forging for High-rib Thin-plate Components and Process Planning

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