深冲紫铜各向异性及织构相关性分析  

Anisotropy and texture correlation analysis of deep-drawing copper strip

作　　者：李学帅 郭丽丽 张建波 王海斌 郑殿水 LI Xueshuai;GUO Lili;ZHANG Jianbo;WANG Haibin;ZHENG Dianshui(CNMC Albetter Albronze Co.,Ltd.,Linqing 252600,Shandong,China;School of Engineering Research Institute,Jiangxi University of Science and Technology,Ganzhou 341000,Jiangxi,China)

机构地区：[1]中色奥博特铜铝业有限公司,山东临清252600 [2]江西理工大学工程研究院,江西赣州341000

出　　处：《有色金属科学与工程》2020年第4期44-48,共5页Nonferrous Metals Science and Engineering

基　　金：国家重点研发计划资助项目(2016YFB0301305)。

摘　　要：通过力学性能检测及电子背散射衍射(EBSD)分析,研究了不同加工工艺生产的厚度为0.5 mm的紫铜带的塑性应变比r、平面各向异性系数Δr与材料深冲性能之间的关系,并对纯铜带材的织构进行了分析。结果表明,塑性应变比r值越大,越不易在厚度方向变形,越适合深冲,且需同时满足Δr要小,才能保证每个面上塑性应变比波动幅度较小。织构分析表明,减小成品加工率可以减少形变织构的体积分数,通过加工率与热处理的配合可以控制形变织构和退火织构的配比,合理的配比可以促进深冲紫铜带后杯口四周的制耳相互抵消,各向异性减小,从而保证了紫铜带冲压后边缘的制耳率。The relationship between the plastic strain ratio R,the plane anisotropy coefficient r and the deep drawing property of the copper strip with thickness of 0.5 mm produced by different processing technology was studied by means of mechanical property test and electron backscatter diffraction analysis.And the texture of pure copper strip was analyzed.The results show that the larger the plastic strain ratio R is,the more difficult it is to deform in the thickness direction,and the more suitable for deep drawing.Texture analysis shows that the volume fraction of deformation texture can be reduced by reducing the processing rate of finished products.And the ratio of deformation texture and annealing texture can be controlled by combining processing rate with heat treatment.The reasonable ratio can promote the ear-making around the cup mouth of deep-drawing red copper belt to cancel each other and reduce the anisotropy,thus ensuring the ear-making rate of red copper belt after stamping.

关 键 词：铜板带 铜加工 各向异性 织构 深冲性能 

分 类 号：TG379[金属学及工艺—金属压力加工] TF125.2[冶金工程—粉末冶金]