【摘 要】
：
Surface of gears that work continuously tends to be wore.Hardfacing on worn gear can repair its worn surface,restore its precision,consolidate its surface property,and save cost.Micro-Plasma Arc Weldi
【机 构】
：
National Key Laboratory for Remanufacturing,Academy of Armored Force Engineering,Beijing,China
【出 处】
：
Fifth International Conference on Surface Engineering(第五届表面工
论文部分内容阅读
Surface of gears that work continuously tends to be wore.Hardfacing on worn gear can repair its worn surface,restore its precision,consolidate its surface property,and save cost.Micro-Plasma Arc Welding (microPAW) has low heat input and narrow heat-affected zone,and it has good properties of energy concentration and high energy density.Therefore,hardfacing by microPAW is an effective method to repair worn gear surface.KF-Ni60 (Ni,Cr,B,Si,Fe) Fe-based alloy powder has good weldability property,and welding layer deposited by KF-Ni60 has low friction coefficient and good property of wear resistance between metallic hard surface.So KF-Ni60 is a kind of good overlaying materials that can be applied to the welding process to repair the worn gear surface.In this research,the method of overlaying on worn gear using KF-Ni60 Fe-based alloy powder by microPAW and the mechanical property of deposition layer are studied.
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