非导电工程陶瓷电火花磨削热量分配模型  

Heat partition model for non-conductive engineering ceramics during electrical discharge grinding

作　　者：于丽丽[1] 刘永红[1] 朱连章[2] 纪仁杰[1] 李小朋[1] 

机构地区：[1]中国石油大学机电工程学院,山东东营257061 [2]中国石油大学计算机与通信工程学院,山东东营257061

出　　处：《中国石油大学学报（自然科学版）》2007年第3期100-102,108,共4页Journal of China University of Petroleum(Edition of Natural Science)

基　　金：国家自然科学基金资助项目(50675225);教育部博士点基金资助项目(20040425504)

摘　　要：对非导电工程陶瓷加工新技术——双电极同步伺服跟踪电火花磨削加工(EDGSSDE)中产生的热量进行了分析,建立了EDGSSDE的热源模型和热量在非导电工程陶瓷、金属结合剂砂轮、磨屑和工作液间的分配模型,并进行了数值计算。计算结果表明,热量在金属结合剂砂轮和工作液间的分配随着加工深度的增加而逐渐减小,热量在非导电工程陶瓷间的分配随着加工深度的增加而逐渐增大,热量在磨屑间的分配比很小,且随着加工深度的增加变化不大。加工中工作液和砂轮带走大部分的热量。The heat partition in electrical discharge grinding with synchronous servo double electrodes （EDGSSDE） for nonconductive engineering ceramics was investigated. The models of heat partition to non-conductive engineering ceramics, metal bonded wheel, grit and working fluid during machining were established and numerical calculation was carried on. The results indicate that heat partition ratios to metal bonded wheel and working fluid decrease with the increase of slenderness ration and take most of the heat away from machining zone. The heat partition ratio to non-conductive engineering ceramics increases when slenderness ration increases. The heat partition ratio to grit is negligible, only about 1%-2%. The theoretical calculations agree with the experimental data.

关 键 词：非导电工程陶瓷 电火花磨削 热量分配 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]