T2紫铜复杂异形零件渐进微冲裁工艺研究
Study on progressive micropunching process of T2 copper complex shaped parts
郭思宇 1马晓光 1赵敬伟1
作者信息
- 1. 太原理工大学 机械与运载工程学院,山西 太原 030024;太原理工大学 先进金属复合材料成形技术与装备教育部工程研究中心,山西 太原 030024
- 折叠
摘要
为探究厚度为0.2 mm的介观尺度T2 紫铜复杂异形成形件的渐进微冲裁工艺,通过金相腐蚀和拉伸试验获得T2 紫铜薄带的微观组织及力学性能,分别利用传统微冲裁工艺与渐进微冲裁工艺制备复杂异形零件,并通过三维激光电镜和扫描电镜对成形件的整体形貌和冲裁断口形貌进行了观测分析.结果表明,渐进微冲裁成形技术与传统微冲裁工艺相比,成形件的尺寸精度和形状精度较高,该工艺可显著降低传统微冲裁工艺中的冲裁件断面圆角带面积,改善撕裂带形貌与光亮带的表面光洁度,获得更好的冲裁断面质量.
Abstract
To investigate the progressive micropunching process for mesoscale T2 copper complex shaped parts with thickness of 0.2 mm,the microstructure and mechanical properties of T2 copper thin strip were obtained by metallographic corrosion and tensile tests.The com-plex shaped parts were prepared by the conventional micropunching and progressive micropunching processes,respectively,and the over-all morphologies and cross section morphologies of the formed parts were observed and analyzed by 3D laser scanning microscopy and scan-ning electron microscopy.The results show that the dimensional accuracy and shape accuracy of the formed parts obtained by progressive micropunching process are higher than that obtained by conventional micropunching process,and the process can significantly reduce the area of the fillet belt in the cross section of the punched parts in the conventional micropunching process,improve the shearing zone mor-phology and the surface finish of smooth zone,and obtain better quality of the punching cross section.
关键词
铜薄带/渐进微冲裁/复杂异形件/成形质量Key words
copper thin strip/progressive micropunching/complex shaped parts/forming quality引用本文复制引用
基金项目
国家自然科学基金资助项目(51975398)
出版年
2024
NETL
NSTL
万方数据