对称冷辗扩分体锥形套圈宽展研究  

Width spread research of taper ring's symmetry cold rolling

作　　者：毛华杰[1] 史宏江[1] 华林[1] 袁乐健[1] 

机构地区：[1]武汉理工大学材料学院,武汉430070

出　　处：《塑性工程学报》2006年第4期66-70,共5页Journal of Plasticity Engineering

基　　金：国家自然科学基金重点项目(50335060);高校青年教师奖项目(教人司[2002]383号)

摘　　要：冷辗扩是生产高质量无缝环件的新工艺,圆锥套圈辗扩由于金属分布的不均匀导致辗扩过程会产生较大轴向力,同时端面出现拉凹。文章从理论与工艺入手,研究了对称面上的拉凹的产生机理,并提出了控制拉凹的措施,在试验中得到了验证。成功开发了圆锥套圈对称辗扩的新工艺。Cold ring rolling is a new technology to produce high-tech seamless rings. The asymmetry of the metal distribution in the taper ring causes large axial force, as well as sunken side faces. In this paper, the mechanism of the sunken side faces in analyzed, the countermeasures are suggested, which was validated in the experiments. The symmetry rolling technology for taper ring is suggested.

关 键 词：对称冷辗扩 锥形套圈 宽展 凹心 

分 类 号：TG306[金属学及工艺—金属压力加工] TG316.13