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  The journal resolutely  resists all academic misconduct, once found, the paper will be withdrawn immediately.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:Novel precision extrusion process of axle sleeve and its application
Authors: GUO Yong-qiang1 XU Chun-guo1  CUI Ji-hong2   REN Guang-sheng1   REN Wei-wei1   CHEN Yu-jin1 
Unit: (1. Beijing Research Institute of Mechanical and Electrical Technology Beijing 100083 China 2. Hebei Iron & Steel Technology Research Institute  Shijiazhuang 050000  China) 
KeyWords: axle sleeve  precision extrusion  defects 
ClassificationCode:TG316;TG335
year,vol(issue):pagenumber:2012,37(6):12-15
Abstract:

A new process including upsetting, backward extrusion of cupshaped, forward extrusion with piercing , reaming and sizing was proposed for axle sleeve that has multiple inner steps and high precision requirements, and the process had been used in real production. Furthermore, the reasons of defects, such as under filling of fillet, the situation that the web could not be completely pierced and the crack appeared at the bottom during in the development of this novel process were analyzed. The corresponding solutions were put forward as follows. The fillet was fully filled by increasing 2 mm in length at the top of part. By using FEM the web could be completely pierced by improving press load of backward extrusion process. The crack defect location was founded by setting tracking points in the numerical simulation; therefore, the crack defect was completely resolved.

Funds:
国家自然科学基金资助项目(51075024);国家高技术研究发展计划资助项目(2012AA040202)
AuthorIntro:
Reference:


[1]中国机械工程学会.中国机械工程技术路线图[M].北京:中国科学技术出版社,2011.
[2]任广升,徐春国.半轴套管快捷精密挤压成形工艺[P].中国, 0029774.3.2008.11.12.
[3]任广升,白志斌.复合挤压变形的模拟研究[J]. 中国机械工程,1994,30(1):56-62.
[4]范建文,吴诗淳,李淼泉.外径不等杯一杯型复合挤压过程的数值模拟[J].机械科学与技术,1998,1(17):91-93.
[5]郭永强,徐春国,任广升,等. 挤压缩口工艺中缺陷的研究[J].锻压技术,2011,36(2):144-147.
[6]中国机械工程学会锻压学会. 锻压手册:第1卷[M].北京:机械工业出版社,1993.
[7]任广升,胡亚民,付传锋. 模具型腔挤压成型技术[M]. 北京:机械工业出版社,2009.


 

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