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。
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 complex shaped parts were prepared by the conventional micropunching and progressive micropunching processes,respectively,and the overall morphologies and cross section morphologies of the formed parts were observed and analyzed by 3D laser scanning microscopy and scanning 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 morphology and the surface finish of smooth zone,and obtain better quality of the punching cross section.
作者
郭思宇
马晓光
赵敬伟
GUO Si-yu;MA Xiao-guang;ZHAO Jing-wei(College of Mechanical and Vehicle Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Engineering Research Center of Advanced Mental Composites Forming Technology and Equipment,Ministry of Education,Taiyuan University of Technology,Taiyuan 030024,China)
出处
《塑性工程学报》
CAS
CSCD
北大核心
2024年第9期54-59,共6页
Journal of Plasticity Engineering
基金
国家自然科学基金资助项目(51975398)。
关键词
铜薄带
渐进微冲裁
复杂异形件
成形质量
copper thin strip
progressive micropunching
complex shaped parts
forming quality
