Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
8095366 | Journal of Cleaner Production | 2018 | 21 Pages |
Abstract
This paper presents a hybrid process combine micro reciprocated wire-EDM which uses reciprocated travelling wire with 50â¯Î¼m diameter as tool electrode, with the precision forging, achieving the economical and high-efficiency sustainable production of micro gears. A micro gear mold with 0.1â¯mm module and 10 tooth number is devised, and the 14.5â¯Î¼m mold fit clearance is determined by analyzing the established mold matching model and conducting the numerical simulation of precision forging. During the micro reciprocated wire-EDM of micro gear mold from SKD11, the basic experiments are performed to study the effect of the main parameters on machining accuracy and productivity, and whilst the proper machining parameters are obtained. The micro gear punch and die are successfully fabricated by micro reciprocated wire-EDM, showing good surface quality with 0.90â¯Î¼m and 0.83â¯Î¼m Ra respectively, and low dimensional deviations of â¤1.3â¯Î¼m and 2.1â¯Î¼m respectively. Finally, the precision forging of the micro gears are conducted on ultrafine grained (UFG) high purity copper by the machined micro gear mold. The forged micro gears have high forming precision with â¤4.1â¯Î¼m deviation from the micro gear mold and smooth surface with 0.86â¯Î¼m copied from the micro gear die cavity, verifying the feasibility of the proposed method for the sustainable production of micro gears.
Related Topics
Physical Sciences and Engineering
Energy
Renewable Energy, Sustainability and the Environment
Authors
Xiang Chen, Zhenlong Wang, Jie Xu, Yukui Wang, Jianwei Li, Hongzheng Liu,