中国机械工程2012，Vol.23Issue(13)：1623-1628,6.
丝杠冷滚打成形过程金属流动规律研究
Study on Metal Flowing of Lead Screw Cold Roll--beating Forming
摘要
Abstract
The metal flow of lead screw cold roll--beating torming process was studied by means of numerical simulation and experiments herein. First, the principle of the forming technology was analyzed. A FEA model of the cold roll--beating form of lead screw was built, and the stress and strain were analyzed. Then the metal flowing of the forming process was analyzed initially. Experi- ments were carried out and the metallographic structure, hardness distribution and hardening layer distribution of the obtained experimental piece were analyzed. The results show that the deformation of first roll--beating point is small compared to the deformation of last roll--beating point in the bot- tom of the tooth space. The hardness of tooth space increases. There is a certain depth of the harden- ed layer along the normal direction of tooth space. The material hardness and strength can be im- proved. These results will provide guidance for further study of the forming mechanism and precise parameter control of this new forming process.关键词
冷滚打成形/丝杠/数值模拟/金相组织/流动规律Key words
cold roll-- beating forming/lead screw/numerical simulation/metallographic struc-ture~ metal flowing分类
矿业与冶金引用本文复制引用
张璐,李言,杨明顺,李玢..丝杠冷滚打成形过程金属流动规律研究[J].中国机械工程,2012,23(13):1623-1628,6.基金项目
国家自然科学基金资助项目 （）
陕西省科技计划资助项目 （）
