AA5182铝合金板电磁冲孔质量研究

doi:10.3901/JME.2023.12.297

机械工程学报 ›› 2023, Vol. 59 ›› Issue (12): 297-305.doi: 10.3901/JME.2023.12.297

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AA5182铝合金板电磁冲孔质量研究

段丽明, 洪志波, 崔俊佳李光耀, 蒋, 浩

湖南大学汽车车身先进设计制造国家重点试验室长沙 410082

收稿日期:2022-06-25 修回日期:2023-02-13 出版日期:2023-06-20 发布日期:2023-08-15
通讯作者: 蒋浩(通信作者),男,1992年出生,博士,副研究员。主要研究方向为异种材料高效连接技术。E-mail:haojiang@hnu.edu.cn
作者简介:段丽明,男,1993年出生,博士研究生。主要研究方向为磁脉冲成形与连接技术。E-mail:duanliming@hnu.edu.cn;洪志波,男,1995年出生。主要研究方向为磁脉冲成形技术。E-mail:hongzhibo_hnu@163.com;崔俊佳,男,1983年出生,博士,教授,博士研究生导师。主要研究方向为汽车轻量化、异种材料高效连接技术。E-mail:cuijunjia@hnu.edu.cn;李光耀,男,1963年出生,博士,教授,博士研究生导师。主要研究方向为新能源汽车制造、异种材料高效连接技术、汽车轻量化。E-mail:gyli@hnu.edu.cn
基金资助:
国家自然科学基金(52005173，51975202)、湖南省优秀青年基金(2019JJ30005)和博士后创新人才支持计划(BX20200123)资助项目。

Study on Electromagnetic Punching Quality of AA5182 Aluminum Alloy Sheet

DUAN Liming, HONG Zhibo, CUI Junjia, LI Guangyao, JIANG Hao

State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, Hunan University, Changsha 410082

Received:2022-06-25 Revised:2023-02-13 Online:2023-06-20 Published:2023-08-15

摘要/Abstract

摘要： 为了研究放电能量对AA5182铝合金板电磁冲孔质量的影响，在不同放电能量(3 kJ、4 kJ、5 kJ、6 kJ)下对2.0 mm厚的AA5182铝合金冷轧薄板进行了电磁冲孔试验，并就尺寸精度、表面光洁度、微观形貌及显微硬度等方面开展质量评估。结果表明，放电能量对电磁冲孔质量有显著影响。随着放电能量的增加，电磁冲孔的尺寸精度、表面光洁度、微观形貌和显微硬度都得到一定程度上的提升。相较于3 kJ来说，放电能量为6 kJ时，电磁冲孔的尺寸偏差降低74.36%～91.32%，表面粗糙度值降低33.33%～45.92%，微观形貌质量(光亮带高度)提升47.56%～63.39%，显微硬度值提升6.74%～6.98%。因此，可以得出结论，随着放电能量的增加，AA5182铝合金板电磁冲孔质量得到明显提升。此外，通过本研究可以为电磁冲孔技术在汽车工业领域的应用提供一定的参考依据。

关键词: 铝合金, 电磁冲孔, 高速冲孔

Abstract: In order to investigate the effect of discharge energy on the quality of holes produced by electromagnetic punching for AA5182 aluminum alloy sheet, the electromagnetic punching experiments under different discharge energies(3 kJ, 4 kJ, 5 kJ, 6 kJ) are carried out on AA5182 aluminum alloy cold-rolled sheets with a thick of 2.0 mm. The quality evaluation including dimensional accuracy, surface roughness, microstructure and micro hardness is implemented. The results show that the discharge energy has significant effects on the quality of the punched holes. That is, with the increase of discharge energy, the dimensional accuracy, surface finish, microstructure quality and micro hardness of punched holes are improved to a certain extent. Compared with 3 kJ, when the discharge energy is 6 kJ, the dimensional deviation of punched holes is decreased by 74.36% to 91.32%, the surface roughness value is decreased by 33.33% to 45.92%, the microstructure quality (burnish zone height) is increased by 47.56% to 63.39%, and the micro hardness value is increased by 6.74% to 6.98%. Therefore, it can be concluded that the electromagnetic punching quality of AA5182 aluminum alloy sheets is significantly improved with the increase of discharge energy. In addition, this work can provide scientific guidance to some extent for the application of electromagnetic punching technology in automobile industry.

Key words: aluminum alloy, electromagnetic punching, high-speed punching

中图分类号:

TG146.2

段丽明, 洪志波, 崔俊佳李光耀, 蒋, 浩. AA5182铝合金板电磁冲孔质量研究[J]. 机械工程学报, 2023, 59(12): 297-305.

DUAN Liming, HONG Zhibo, CUI Junjia, LI Guangyao, JIANG Hao. Study on Electromagnetic Punching Quality of AA5182 Aluminum Alloy Sheet[J]. Journal of Mechanical Engineering, 2023, 59(12): 297-305.

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AA5182铝合金板电磁冲孔质量研究

Study on Electromagnetic Punching Quality of AA5182 Aluminum Alloy Sheet

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