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조용근(Yonggeun Cho),백진욱(Jinwook Baek),정헌술(Heonsul Jeong) 한국신뢰성학회 2020 신뢰성응용연구 Vol.20 No.4
Purpose: The cylinder block of a driving motor is fabricated by joining a copper alloy with excellent lubrication for a fast-rotating part to a valve plate and a piston with linear reciprocating motion. Although Pb, a commonly added solid lubricant, is being replaced for conformance with ecofriendly regulations, namely Restriction of Hazardous Substances (RoHS) directives, it does not involve a logical verification system. Methods: In this study, a comparative test method was developed on the basis of the standard for abrasion resistance tests for material components. Results: Improved samples were comparatively evaluated using the developed comparative test method. Conclusion: It is expected that the proposed comparative test method will be reviewed as a verification method for similar development and will be further used for the development of accelerated life tests.