金刚石工具与石材摩擦磨损动态特性分析  

Study on Dynamic Characters of Friction and Wear Between Diamond Tool and Stone

作　　者：赵民[1] 曹瑞元[1] 张云凤[1] 武斌[1] 

机构地区：[1]沈阳建筑大学交通与机械学院,辽宁沈阳110168

出　　处：《润滑与密封》2013年第5期51-54,78,共5页Lubrication Engineering

基　　金：住房和城乡建设部研究开发项目(2012-K3-44;2012-K4-29)

摘　　要：以电镀金刚石工具和石材为摩擦副,在MMW-1型立式万能摩擦磨损试验机上测试金刚石工具在室温条件下的干摩擦磨损性能,用Hv-1000显微硬度计测量石材的显微硬度。应用随机过程中的相关性从自相关函数、功率谱密度函数两方面对测得的摩擦因数进行分析。结果表明,石材硬度越大,摩擦因数越大;摩擦因数随着主轴转速和所施加的载荷的增加而增加,当转速大于200 r/min时,摩擦因数为平稳随机过程;载荷对摩擦因数的功率谱密度影响较小,主轴转速对摩擦因数的功率谱密度影响较大。The friction and wear properties of electroplated universal friction and wear tester under room temperature and ured by Hv-lO00 microscopic hardness tester. By applying the diamond tools against stone were studied on MMW-1 vertical dry sliding condition. The hardness of the stone was meas- correlation in stochastic process, the self-correlation analysis and power spectra density analysis was made for the measured friction coefficient. The results show that the frictional coeffi- cient between the diamond tool and stone is increased with the increase of stone hardness, and also increased along with the increase of load and spindle speed. When the spindle speed is more than 200 r/min, the friction coefficient is in a station- ary random process. The load has less influence on the power spectral density of friction coefficient, but the spindle speed bigger influence on the power spectral density of friction coefficient.

关 键 词：金刚石工具 石材 摩擦因数 自相关函数 功率谱密度函数 

分 类 号：TH117.1[机械工程—机械设计及理论]