网站首页期刊简介编委会过刊目录投稿指南广告合作征订与发行联系我们English
TP2内螺纹铜管滚珠旋压成形缺陷模拟与分析
英文标题:Finite element simulation and analysis of ball spinning defects of TP2 inner-grooved copper tubes
作者:刘劲松 叶能永 张士宏 唐伟东 
单位:沈阳理工大学 中国科学院 
关键词:TP2内螺纹铜管 滚珠旋压 折叠 缺口 
分类号:TG37
出版年,卷(期):页码:2011,36(5):46-50
摘要:

针对折叠和缺口两种缺陷,在现场工艺参数的基础上运用有限元软件MSC.Marc分别建立了TP2内螺纹铜管滚珠旋压有限元模型,通过模拟和力学分析相结合的方法分析了折叠和缺口的形成过程和产生的原因。结果表明:减小减径拉拔后的管坯壁厚和增大芯头的齿顶圆角可增大齿顶圆弧的曲率,避免缺口形成。此外,增大芯头的齿顶圆角还可增强成齿变歪后的对中性,避免产生折叠。

According to the defects of folding and notch, finite element models of ball spinning of TP2 inner-grooved copper tubes were established separately on the basis of actual field processing parameters using finite element software MSC.Marc. The forming process and cause were analyzed through the simulation and mechanical analysis. The results show that notches can be avoided by increasing the addendum arc's curvatures which can be increased through decreasing the tubes wall thickness after reducing diameter drawing process and increasing the core-head addendum fillet. In addition, the formed teeth neutral can be also enhanced by increasing the addendum fillet of the floating mandrel in order to avoid forming the folding defects.

基金项目:
国家自然科学基金资助项目(50474059)
作者简介:
参考文献:

[1]张金利. 我国内螺纹的加工技术和发展方向[J]. 铜业工程,2003, (1):2930.

[2]Metaki, Morita, Hiratama, et al. Heat transfer tube with grooved inner surface: European Patent Application, 0518312A1[P], 1992-11-06.

[3]Ishibashi Akihiko. Heat transfer tube with inner surface groove:Japanese Patent, JP7012483[P]. 1995-01-15.

[4]Rotarescu M I.A theoretical analysis of tube spinning using balls[J]. Journal of Materials Processing Technology,1995,54:224-229.

[5]张光亮,张士宏,张海渠. 内螺纹铜管滚珠旋压三维有限元模拟[J].现代制造工程,2006,(8):103-106.

[6]Zhang Shi-hong,Zhang Guang-liang,Li Bing,et al. Analysis on folding deflects of inner grooved copper tubes during ball spin forming[J]. Journal of Materials Processing Technology, 2007,184: 393-400.

[7]Jiang Shu-yong,Ren Zheng-yi,Wu bin,et al. General issues of FEM in backward ball spinning of thin-walled tubular part with longitudinal inner ribs[J]. Transactions of Nonferrous Metals Society of China,2007,17:793-798.

[8]Jiang Shu-yong, Ren Zheng-yi, Li Chun-feng,et al. Role of ball size in backwoard ball spinning of thin-walled tubular part with longitudinal inner ribs[J]. Journal of Materials Processing Technology,2009,209:2167-2174.

[9]Jiang Shu-yong, Ren Zheng-yi, Li Chun-feng,et al. Application of BPANN for prediction of backward ball spinning of thin-walled tubular part with longitudinal inner ribs[J]. Journal of Materials Processing Technology,2008,196:190-196.

[10]钟卫佳,马可定,吴维治. 铜加工技术实用手册[M]. 北京:冶金工业出版社, 2007.

服务与反馈:
本网站尚未开通全文下载服务】【加入收藏
《锻压技术》编辑部版权所有

中国机械工业联合会主管 北京机电研究所有限公司 中国机械工程学会塑性工程分会主办
联系地址:北京市海淀区学清路18号 邮编:100083
电话:+86-010-82415085 传真:+86-010-62920652
E-mail: fst@263.net(稿件) dyjsjournal@163.com(广告)
京ICP备07007000号-9