中国机械工程Issue(9)：1167-1172,6.DOI:10.3969/j.issn.1004132X.2015.09.007
随动导丝及喷水机构大锥度高速电火花线切割研究
Study on HSWEDM Possessing Function of Guiding Wire and Following-up Spray during Large Taper Cutting
摘要
Abstract
Because many factors especially the structure error influences caused by wire electrode using wheel positioning,and dielectric fluid cannot grip the wire electrode very well so that could not flow into the machining area with wire electrode along the direction of dip when big taper parts in cut-ting,the machining accuracy and surface roughness of the taper parts were worse than parts with stretched cutting.Multi cutting of taper parts especially big taper parts was much more difficult.The basic reason was that it had no follow-up guide and spray mechanism which could keep the wire elec-trode space position and stability.In view of the above mentioned problems,the paper presented the design of a six connecting rod big taper follow-up guide and spray mechanism that could guide wire along with wire electrode’s inclination and realize tracking spray at the same time.On the basis of new mechanism,experimental results show that taper machining errors decrease from 80μm to 40μm. Surface roughness Ra decreases from 4.059 μm to 3.495 μm.After multi cutting,taper machining (taper ±20°,thickness 40 mm)errors are decreased to 25 μm.Surface roughness Ra is decreased to 1.670 μm.关键词
高速电火花线切割/大锥度/随动机构/多次切割Key words
high speed wire-cut electric discharge machining (HSWEDM)/large taper/servo guide mechanism/multi cutting分类
矿业与冶金引用本文复制引用
李凌铃,刘志东,岳伟栋..随动导丝及喷水机构大锥度高速电火花线切割研究[J].中国机械工程,2015,(9):1167-1172,6.
