CAJ | 학술논문

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.
이전도금강석공구화석재위마찰부,재MMW-1형입식만능마찰마손시험궤상측시금강석공구재실온조건하적간마찰마손성능,용Hv-1000현미경도계측량석재적현미경도.응용수궤과정중적상관성종자상관함수、공솔보밀도함수량방면대측득적마찰인수진행분석.결과표명,석재경도월대,마찰인수월대;마찰인수수착주축전속화소시가적재하적증가이증가,당전속대우200 r/ min시,마찰인수위평은수궤과정;재하대마찰인수적공솔보밀도영향교소,주축전속대마찰인수적공솔보밀도영향교대.
@@@@The friction and wear properties of electroplated diamond tools against stone were studied on MMW-1 vertical universal friction and wear tester under room temperature and dry sliding condition. The hardness of the stone was meas-ured by Hv-1000 microscopic hardness tester. By applying the 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.