锻压技术

汽车轮毂轴承单元摆辗铆接技术及有限元模拟分析

英文标题：Orbital riveting technology and finite element analysis of automotive hub bearing units

作者：张侠成国发钱进浩

单位：常州信息职业技术学院卡迈锡汽车紧固件（中国）有限公司苏州银涛精密锻造有限公司

分类号：TG31

出版年,卷(期):页码：2021,46(5):151-157

摘要：

运用专业Simufact有限元模拟软件，建立轮毂轴承单元摆辗铆接有限元分析模型，设定工艺过程参数，运算得到铆接后的法兰轴末端材料流动及等效应变和等效应力等。模拟结果表明:法兰末端材料流动顺畅、无折叠；等效应变和等效应力分布大致相同；随着轴向进给的增加，等效应变和等效应力值逐渐变大，且在接触上模圆角区域靠近凸缘处最大。摆辗铆接成形工艺可实现轮毂轴承单元的铆接，将法兰末端材料扩展辗压形成凸缘，实现轴承内圈的锁紧，也可为其他环形组件的连接装配提供参考。

Based on the professional finite element simulation software Simufact, the finite element analysis model of orbital riveting for hub bearing units was established, and the material flow, equivalent strain and equivalent stress at the end of

flange shaft after riveting were calculated by setting the relevant process parameters. The simulation results show that the material flow at the end of the flange shaft flows smoothly without folding, and the distribution of equivalent strain and equivalent stress are almost the same. With the increasing of axial feed, the equivalent strain and equivalent stress values gradually increase, and the maximum value is at the contact area of upper die fillet near the flange. Thus, the orbital riveting process realizes the riveting of hub bearing units, expands the material at the flange end to form a flange, realizes the locking of bearing inner ring, and provides a reference for the connection and assembly of other ring components.

基金项目：

张侠（1984-），女，硕士，讲师 E-mail：645318805@qq.com

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