关键参数对铜银合金丝线材拉拔力的影响  

Effect of Key Variables on Drawing Force of Copper Silver Alloy Wire

作　　者：袁鹏飞 苏娟华[1,2] 宋克兴[1,2] 皇涛[1,2] 张学宾[1,2] 曹军[3] 陈鼎 沈晓宇 YUAN Pengfei;SU Juanhua;SONG Kexing;HUANG Tao;ZHANG Xuebin;CAO Jun;CHEN Ding;SHEN Xiaoyu(Materials Science&Engineering School,Henan University of Science Technology,Luoyang 471023,China;Henan Key Laboratory of Nonferrous Materials Science&Processing Technology,Henan University of Science Technology,Luoyang 471023,China;College of Mechanical and Power Engineering,Henan University of Technology,Jiaozuo 454000,China;Changzhou Hengfeng Special Conductor Co.,Ltd.,Changzhou 213000,China;Zhejiang Tony Electronic Co.,Ltd.,Huzhou 313000,China)

机构地区：[1]河南科技大学材料科学与工程学院,河南洛阳471023 [2]河南科技大学河南省有色金属材料科学与加工技术重点实验室,河南洛阳471023 [3]河南理工大学机械与动力工程学院,河南焦作454000 [4]常州恒丰特导股份有限公司,江苏常州213000 [5]浙江东尼电子股份有限公司,浙江湖州313000

出　　处：《河南科技大学学报（自然科学版）》2021年第3期7-11,M0002,共6页Journal of Henan University of Science And Technology:Natural Science

基　　金：国家重点研发计划基金项目(2017YFB0306400);河南省创新引领专项(191110210400);河南省高等学校重点科研项目(19A430012);河南省杰出人才创新基金项目(182101510003);洛阳市科技重大专项(1901006A)。

摘　　要：拉拔力是影响丝线材拉拔稳定性的关键因素,也是设计及选用拉丝机的主要技术参数。本文基于DEFORM-3D有限元分析软件建立了铜银合金拉拔有限元模型。对不同材料参数、不同入模角、摩擦因数和不同定径区长度等条件下的拉拔过程进行了研究,分析了加工硬化指数、入模角、摩擦因数和定径区长度变化对拉拔力的影响规律,并验证了模型的可靠性。研究结果表明:随着硬化指数的减小,稳态拉拔力逐渐增大。当入模角为12°时,拉拔力最小,为最佳模角。随摩擦因数的增大,稳态拉拔力呈增大趋势,且当摩擦因数为0.1时,拉拔力波动剧烈。定径区长度的变化对稳态拉拔力影响不明显。Drawing force was the key factor affecting the drawing stability of silk thread,and was also the main technical parameter for designing and selecting the wire drawing machine.Based on DEFORM-3D finite element analysis software,the finite element model of copper silver alloy drawing was established.The drawing process with different material parameters,different die entry angles,friction coefficients and sizing zone lengths was studied.The effects of work hardening index,die entry angle,friction coefficient and sizing zone length on drawing force was analyzed,and the reliability of the model was verified.The results show that with the decrease of hardening index,the steady-state drawing force increases gradually.When the die angle is 12°,the drawing force is the minimum,which is the best die angle.With the increase of friction coefficient,the steady-state drawing force increases.When the friction coefficient is 0.10,the drawing force fluctuates violently.The length of sizing zone has no obvious effect on the steady-state drawing force.

关 键 词：铜银合金 拉拔力 硬化指数 入模角 模具参数 

分 类 号：TG146.1[金属学及工艺—金属材料]