吉林大学学报(工学版) ›› 2025, Vol. 55 ›› Issue (11): 3564-3574.doi: 10.13229/j.cnki.jdxbgxb.20240257
• 材料科学与工程 • 上一篇
基于磁流变弹性体商用车防护梁绕弯成形
李义1(
),黄伟鹏1,程敏2(),梁继才1
- 1.吉林大学 材料科学与工程学院，长春 130022
2.吉林大学 机械与航空航天学院，长春 130022
Roll bending forming of commercial vehicle bumper beams based on magnetorheological elastomers
Yi LI1(),Wei-peng HUANG1,Min CHENG2(),Ji-cai LIANG1
- 1.College of Materials Science and Engineering，Jilin University，Changchun 130022，China
2.School of Mechanical and Aerospace Engineering，Jilin University，Changchun 130022，China
摘要：
本文采用绕弯成形工艺将“日”字形截面型材弯曲成商用车防护梁。在实际加工成形过程中，型材常出现起皱、截面畸变等成形缺陷。为此，利用ABAQUS有限元软件对无芯模支撑型材成形过程进行深入的数值模拟，旨在分析缺陷形成机理。基于此分析，本文设计并研究了一种新型芯模——新型磁控芯模，该芯模不仅对“日”字形结构型材的弯曲成形表现出优异的成形质量，还能显著提升传统芯模成形工艺的性能。此外，通过改变弯曲半径、模具间隙等成形参数，本文探究了型材弯曲的极限工艺参数，在保证精度的前提下寻求极限工艺参数。
中图分类号:
- TG386
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