内外冲液组合式的短电弧铣削加工间隙流场仿真  

Simulation of Gap Flow Field in SEMA Machining with Internal and External Flushing

作　　者：李雪芝[1] 周建平[1] 王恪典 许燕[1] LI Xuezhi;ZHOU Jianping;WANG Kedian;XU Yan(School of Mechanical Engineering,Xinjiang University,Urumqi Xinjiang 830047,China)

机构地区：[1]新疆大学机械工程学院,新疆乌鲁木齐830047

出　　处：《机床与液压》2020年第10期7-11,共5页Machine Tool & Hydraulics

基　　金：国家自然科学基金地区科学基金项目(51765063);新疆维吾尔自治区科技援疆项目(2018B02009-1);新疆维吾尔自治区高校科研计划自然科学项目(XJEDU2020Y011)。

摘　　要：为进一步改善短电弧铣削加工间隙排屑情况,采用内外冲液组合式,通过Fluent对其进行仿真分析,得到了流场压力、速度和蚀除颗粒分布规律。分析不同冲液方式、冲液压力和电极转速对极间间隙流场特性的影响规律,并进行单因素试验。以MRR、TWR为评价指标,找出短电弧铣削加工性能的最佳参数。In order to further improve the gap discharge condition of short electrical arc milling machining(SEMA),the internal and external flushing combined type was used to simulate and analyze the pressure,velocity and particle removal law of flow field.The influence of different flushing modes,flushing pressure and electrode speed on the flow field characteristics of the inter-electrode gap was analyzed,and a single factor test was carried out.The MRR and TWR were used as evaluation indexes to find the best parameters in SEMA.

关 键 词：短电弧铣削加工(SEMA) 加工间隙 流场 Fluent分析 

分 类 号：TG661[金属学及工艺—金属切削加工及机床]