Cf/SiC复合材料低温铣削工艺优化研究  

Experimental Study on Cryogenic Cooling Milling Performance of Cf/SiC Composites

作　　者：徐亮[1] 王凯 王新永[1] 陈旭辉[1] 刘宏瑞[1] 王松 宋楠 韩军[1] 严伟容 刘鸿贵 XU Liang;WANG Kai;WANG Xinyong;CHEN Xuhui;LIU Hongrui;WANG Song;SONG Nan;HAN Jun;YAN Weirong;LIU Honggui(Science and Technology on Advanced Functional Composites Laboratory,Aerospace Research Institute of Materials Processing Technology,Beijing 100076,China)

机构地区：[1]航天材料及工艺研究所先进功能复合材料技术国防科技重点实验室,北京100076

出　　处：《机械制造与自动化》2021年第1期36-40,共5页Machine Building & Automation

基　　金：国防科技重点实验室稳定支持项目(790006020603030215121905);中国航天科技集团工艺研究项目(900703710602010115031801)。

摘　　要：对超硬金刚石刀具低温铣削Cf/SiC复合材料进行工艺优化研究,主要研究聚晶金刚石刀具低温铣削Cf/SiC复合材料过程中,低温冷却介质(干冰、液氮)和冷却工艺参数(阀体出口压力和喷嘴喷射角度)对切削力、加工表面完整性和切屑的影响规律。研究表明:在干冰、液氮低温介质的冷却作用下,工件的加工表面质量得到了较大提高,主切削力显著降低。In this paper,the process optimization of cryogenic milling of Cf/SiC composite with superhard diamond tool is studied.The effects of cryogenic cooling medium(dry ice,liquid nitrogen)and cooling process parameters(valve outlet pressure and nozzle spray angle)on cutting force,machined surface integrity and chip in the process of cryogenic milling of Cf/Si C composite with polycrystalline diamond tools are investigated.The results indicate that under the cooling effect of dry ice and liquid nitrogen,the machined surface quality of workpiece improves remarkablely,and the main cutting force reduces significantly.

关 键 词：CF/SIC 复合材料 低温铣削 工艺优化 干冰 液氮 

分 类 号：TH161.1[机械工程—机械制造及自动化]