Home
Editorial Committee
Brief Instruction
Back Issues
Instruction to Authors
Submission on line
Contact Us
Chinese

  The journal resolutely  resists all academic misconduct, once found, the paper will be withdrawn immediately.

Title:Effect of coining roll reduction on continuous extrusion process for wide copper strip
Authors: YUN Xin-bing LIU Gui-lin SONG Bao-yun FAN Zhi-xin(Continuous Extrusion Engineering Research Center Dalian Jiaotong University Dalian 116028 China) 
Unit:  
KeyWords: continuous extrusion coining roll reduction wide copper strip FEM analysis 
ClassificationCode:TG376
year,vol(issue):pagenumber:2008,33(5):72-75
Abstract:
The coining roll's pressing process of continuous extrusion for wide copper strip was simulated by software DEFORM-3D.The distribution of the billet's effective strain,effective stress,temperature and extrusion wheel's torque were obtained.The result shows that at the same reduction,the billet's effective strain and effective stress gradually increase during pressing process.When the metal is extruded in the extrusion wheel groove and contacted the abutment,the billet's effective strain is unchanged,but the effective stress dramatically decreases.When the metal flows into cavity,the billet's effective strain greatly increases.With the reduction increased in the continuous extrusion forming,the billet's effective strain,effective stress,temperature and extrusion wheel's torque all increase.From analysis of the point tracking and extrusion wheel torque,it is found that when the coining roll reduction is 6 mm,the wide copper strip is suitable for continuous extrusion.
Funds:
国家自然科学基金资助项目(50635020)
AuthorIntro:
Reference:
[1]杨如柏,张胜华.连续挤压译文集[M].1版.长沙:中南工业大学出版社,1989.
[2]Cho J R,Jeong H S.Parametric investigation on the curlingphenomenon in CONFORM process by three-dimensional fi-nite dement analysis[J].Journal of Materials ProcessingTechnology,2001,(110):53-60.
[3]Kim Y H,Cho J R,Jeong H S,et a1.A study on optimaldesign for CONFORM process[J].Journal of MaterialsProcessing Technology,1998,(80-81):671-675.
[4]陈莉.铜扁线连续挤压成形过程的三维数值模拟[D].辽宁:大连铁道学院,2004.
[5]宋宝韫,樊志新,陈吉光,等.铜、铝连续挤压技术特点及工业应用[J].稀有金属,2004,28(1):257-261.
[6]谢玲玲,宋宝韫.铜母线连续挤压扩展成形过程的三维有限元数值模拟[J].锻压技术,2005,30(4):72-75.
[7]刘建生,陈慧琴,郭晓霞.金属塑性加工有限元模拟技术与应用[M].北京:冶金工业出版社,2003.
[8]吴朋越,谢水生,鄢明,等.铜扁线连续挤压过程温度场的数值模拟[J].锻压技术,2007,32(3):46-49.
[9]储灿东,彭颖红,阮雪榆.连续挤压过程仿真中的摩擦模型[J].上海交通大学学报,2001,35(7):993-997.
Service:
This site has not yet opened Download Service】【Add Favorite
Copyright Forging & Stamping Technology.All rights reserved
 Sponsored by: Beijing Research Institute of Mechanical and Electrical Technology; Society for Technology of Plasticity, CMES
Tel: +86-010-62920652 +86-010-82415085     Fax:+86-010-62920652
Address: No.18 Xueqing Road, Beijing 100083, P. R. China
 E-mail: fst@263.net    dyjsgg@163.com