不同MQL安置方式对高速精密车削的影响研究  

Study for Impact of Different MQL Settlements on High-Speed Precision Turning

作　　者：储扬 裴宏杰[1] 何娟娟[1] 王贵成[1] 

机构地区：[1]江苏大学精密工程研究所,江苏镇江212013

出　　处：《机械设计与制造》2014年第5期211-214,共4页Machinery Design & Manufacture

基　　金：国家科技重大专项(2013ZX04009031-4);江苏省普通高校研究生科研创新计划(CXZZ12_0658);中国一汽无锡油泵油嘴研究所动力助研科学研究基金资助项目(WFI201302005)

摘　　要：为比较不同的MQL安置方式对高速精密车削加工的影响,使用德国某公司的超精密机床SB-CNC对轴承钢GCr15分别进行干式、切削液外置供给式MQL以及切削液内置供给式MQL切削试验。通过Kistler加速度传感器和压电式力传感器分别对车刀在加工过程中的径向振动信号和刀尖的三向切削力信号进行采集,并对采集到的信号做时域和频域分析。结果显示,两种MQL润滑方式都对减小切削力和加工中的低频颤振有所抑制,其中,内置式MQL在抑制颤振方面比外置式MQL更有优势,二者在减小切削力能力方面则未见明显区别。In order to research the influences MQL technique have on high-speed precision turning process ,a series of trials were carried out on ball bearing steel GCrlS, including dry turning, external feed MQL turning and internal feed MQL turning by using an ultra-precision machine called SB-CNC, respectively. The signal of radial vibration and the cutting forces of three different directions of the tool are acquired through Kistler acceleration sensor and piezoelectric transducer respectively. Then, time and frequency domain analysis are launched on those signals. The result shows that both settlements of MQL reduced cutting force and vibration in the cutting process. Internal MQL shows better performance in reducing vibration while there＇s little difference in cutting force reducing between internal and external MQL.

关 键 词：最小量润滑(MQL) GCR15 车削 信号分析 振动 切削力 

分 类 号：TH16[机械工程—机械制造及自动化] TG51[金属学及工艺—金属切削加工及机床]