高速内冷立铣刀的三维空化湍流计算  

3D Cavitation Turbulent Flow Simulation in High-speed Internal Cooling End-milling

作　　者：李广慧[1] 尹凝霞[1] 谭光宇[1] 李勃澎 Li Guanghui;Yin Ningxia;Tan Guangyu;Li Bopeng(College of Mechanical and Power Engineering,Guangdong Ocean University,Zhanjiang,Guangdong 524088,China)

机构地区：[1]广东海洋大学

出　　处：《工具技术》2019年第4期42-44,共3页Tool Engineering

基　　金：国家自然科学基金(51375099);广东省教育厅特色创新类项目(2017KTSCX086);广东海洋大学科研启动费资助项目(E15168)

摘　　要：针对内冷铣刀高速切削加工过程中可能会出现的空化现象进行研究。采用三维混合流体完整空化湍流模型,基于RNG的k-ε湍流模型及SIMPLEC算法,对高速内冷铣刀切削区流场进行计算分析,得到了内冷铣刀出现空化现象的临界转速。本研究结果可为优化高速内冷铣刀结构设计提供理论依据。The paper aims at studying the cavitation phenomenon which may occur in high-speed internal cooling end milling.The three dimension (3D) mixture full cavitation turbulent model which represents the homogeneous multiple phase flow is used to compute 3D cavitation flow in high-speed internal cooling end-milling.The whole passage is simulated by RNG k-ε turbulence model and SIMPLEC algorithm.In terms of the simulated results,the cutting zone in high-speed internal cooling end-milling is analyzed and the computational critical speed of the internal cooling end-milling cutter is obtained. The results will provide theory gist to optimize the structural design of high-speed internal cooling end-milling cutters.

关 键 词：高速铣削 内冷 三维空化湍流 

分 类 号：TG501[金属学及工艺—金属切削加工及机床] TH161[机械工程—机械制造及自动化]