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Experimental research on driving frequency influence of low-frequency reciprocating fretting wear testing system
Pages: 105-109
Year: Issue:  1
Journal: Electric Machines and Control

Keyword:  driving frequency controlmagnet-coil force actuatorfretting wearnormal loadreciproca-ting frequencycoefficient of friction;
Abstract: In order to meet the requirements of continuous operation to modernized equipments and reduc-tion of fretting wear for micro-device manufacture, a low-cost universal low-frequency reciprocating fret-ting wear test system was developed. Oscillation reciprocating of reciprocating platform was controlled by adjusting the frequency of driving voltage to measure the coefficient of friction ( CoF) for different friction pair, and analysis the variation of CoF with oscillation frequency. The micro-friction measurement were carried on with silicon wafer, polished aluminum, steel, glass and polytetrafluoroethylene ( PTFE ) a-gainst a steel ball. The experiments showed that CoF decreases linearly with the increase of oscillation frequency at the lower and higher applied load before the wear failure frequency occurred. Moreover, the friction coefficient for friction pair with the lower hardness shows a similar decline curve and variation of friction coefficient with oscillation frequency is consistent with the published literature. It is concluded that the test system is available and results will be provided as an important reference for future research in the field of fretting wear.
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