Abstract
The demand for CoCrMo alloy as an artificial prosthesis has increased for its reliable properties. However, machining of CoCrMo alloy is challenging due to meet the high requirements on prosthesis’ surface quality. In this paper, a new approach of fine ELID grinding on CoCrMo alloy has been proposed using a Kistler three-component dynamometer to monitor the grinding force in real time. This paper also presents the friction and wear performance of CoCrMo alloy. Results show that better efficiency and surface quality can be obtained with low feed speed and small grinding depth. The passivation layer was found on the surface of CoCrMo alloy after ELID grinding, which makes the CoCrMo alloy prosthesis have better biocompatibility. The wear resistance test has proved that CoCrMo alloy has better wear resistance and lower wear quality and is suitable for manufacturing prosthesis.
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