现代制造工程Issue(11)：5-8,99,5.DOI:10.16731/j.cnki.1671-3133.2017.11.002
五边形中空电极电火花加工颗粒增强金属基复合材料试验研究
Experimental study of particle reinforced metal matrix composite of electrical discharge machining by pentagonal hollow electrode
摘要
Abstract
An polygonal tube electrode Electrical Discharge Machining (EDM) method is developed to improve the performance of conventional EDM process in machining particulate reinforced Metal Matrix Composites (MMCs) and the problem of hollow electrode chip during the EDM.Make a contrastive research on machining efficiency of particulate reinforced MMCs through two hollow electrodes with different cross sections,such as the round and the pentagon.In addition,orthogonal experiment is adapted to study particulate reinforced MMCs with different processing parameters on the efficiency to obtain optimal parameters for polygon electrode EDM.The experimental results show that the efficiency of machining such materials by the cross-section of pentagonal hollow electrode is higher than the circular hollow electrode,the maximum processing time is reduced by 51.8 ％;the optimum combination of orthogonal experiment is the pulse on time (32ms),the duty cycle(2 ∶ 3),and the peak current(7A).关键词
颗粒增强金属基复合材料/多边形管电极/电火花加工Key words
particle reinforced metal matrix composites/polygonal tube electrode/Electrical Discharge Machining(EDM)分类
矿业与冶金引用本文复制引用
陈少国,于兆勤,杨逍潇,彭励强,郭钟宁,刘江文..五边形中空电极电火花加工颗粒增强金属基复合材料试验研究[J].现代制造工程,2017,(11):5-8,99,5.基金项目
国家自然科学基金项目(51675105,51575113,51205137) （51675105,51575113,51205137）
广东省高层次人才特殊支持计划科技创新青年拔尖人才项目(2014TQ01X542) （2014TQ01X542）
