大型闭式整体叶轮电火花加工技术研究  

Research on EDM Technology for Large Closed Integral Impeller

作　　者：沈玉琢[1] 李鹏[1] 杨立光 蔡延华 范智广[4] SHEN Yuzhuo;LI Peng;YANG Liguang;CAI Yanhua(Shenyang Blower Group Co.,Ltd.,Shenyang 110021,China;Beijing Key Laboratory of Electrical Discharge Machining Technology,Beijing 100191,China;Beijing Institute of Electro-Machining,Beijing 100191,China)

机构地区：[1]沈阳鼓风机集团有限公司,辽宁沈阳110021 [2]电火花加工技术北京市重点实验室,北京100191 [3]北京市电加工研究所,北京100191 [4]沈阳工程学院,辽宁沈阳110136

出　　处：《电加工与模具》2020年第3期11-14,68,共5页Electromachining & Mould

基　　金：北京市科技新星计划项目(Z181100006218078)。

摘　　要：介绍了激冷气压缩机用大型闭式整体叶轮的加工方法,包括五坐标加工中心整体加工、轮盘叶片和轮盖组合焊接加工、整体电火花成形加工等工艺方法。通过对比分析,提出了一种行之有效的电火花成形加工工艺方法。通过叶轮模型及数据进行三维建模,再根据三维模型进电极设计与制造,最后进行电火花成形加工和在线检测等研究,最终完成了国内首例直径大于700 mm的大型闭式整体叶轮的制造。The machining method of large closed integral impeller used for cooling air compressor is introduced in this paper.This machining method includes integrated machining of 5-coordinate machining center,combined welding of disc blade and wheel cover,and integrated EDM process.This paper presents an effective EDM process for machining large closed integral impeller.Three-dimensional modeling is performed based on the impeller model and data,and electrode design and manufacturing are carried out based on the three-dimensional model.Finally,EDM and on-site inspection took place in the machine.Using this machining method,the manufacturing of the first large integral closed impeller with a diameter of more than 700mm has been successfully completed in China.

关 键 词：激冷气压缩机 闭式整体叶轮 电火花加工 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]