外加电控制YG8/TC4摩擦副的试验研究  

Experimental Investigation on Control of Friction Pair YG8/TC4 with External Voltage

作　　者：杨雷[1] 李亮[1] 何宁[1] 戚宝运[1] 卞荣[1] 

机构地区：[1]南京航空航天大学机电学院,江苏南京210016

出　　处：《机械制造与自动化》2010年第3期154-157,共4页Machine Building & Automation

基　　金：航空科学基金资助项目(20071652013);国家科技支撑项目(2008BAF32B09)

摘　　要：用配置在车床上的摩擦磨损试验辅助装置研究了热电回路的状态,外加电压大小、方向对刀具工件摩擦副——YG8硬质合金/TC4钛合金的摩擦磨损性能的影响。试验结果表明,断开热电回路和在摩擦副间施加反向调零电压对于减小摩擦系数,抑制YG8刀片的磨损,减小TC4圆盘摩擦表面的Ra值都有显著的效果,同时在摩擦副间施加反向电压时的摩擦磨损性能要优于施加正向电压,施加±6V时摩擦副的性能要优于±4V,这可以为钛合金的切削研究提供试验参考。With the friction and wear test auxiliary device combined on the lathe,rotating pin-on-disc friction tests are carried out to investigate the state of thermoelectric circuit and the influence of the friction and wear performance of YG8 /TC4 with the change of the external voetage and palarity.The test results show that opening the thermoelectric circuit and applying reverse regulating-zero voltage are propitious for decreasing coefficient of friction,restraining the wear of YG8 cemented carbide,improving roughness value of TC4 alloy friction surface.The performance of friction pair is better when applying reverse voltage than when doing positive voltage,and ± 6 V is better than ± 4 V.This can provide a test reference for the cutting of titanium alloy.

关 键 词：外加电 摩擦磨损 YG8 TC4 

分 类 号：TH117.1[机械工程—机械设计及理论]