PlatingandFinishingMar.2023Vol.45No.3SerialNo.360基于驱动桥壳半轴套管再制造的镀层性能分析与研究沈晔超*，葛勇（安徽机电职业技术学院电气工程学院，安徽芜湖241002）摘要：为了研究驱动桥壳再制造沉积镀层的工艺性能，在40Mn基材的半轴套管表面采用电刷镀方法形成再制造修复层，选用线切割技术制备镀层和基体试样，分别利用金相显微镜观测了镀层和基体的微观形貌、采用硬度测试计验证了镀层和基体的硬度分布、使用X射线衍射仪进行了试样的物相分析。结果表明：在再制造沉积层的最大可镀范围内，镀层和基体结合可靠、镀层硬度优于基体、沉积镀层中未引入过多其它杂质元素，镀层性能可以满足再制造的使用性能要求。关键词：驱动桥壳；半轴套管；镀层沉积；镀层性能；再制造中图分类号：TQ153文献标识码：AAnalysisandresearchoncoatingperformancebasedonremanufactureofdriveaxlehousinghalfshaftsleeveShenYechao*，GeYong（SchoolofElectricalandMechanicalEngineering，AnhuiTechnicalCollegeofMechanicalandElectricalEngineering，Wuhu241002，China）Abstract：Inordertostudytheprocessperformanceoftheremanufactureddepositedcoatingofthedriveaxlehousing，theremanufacturedrepairlayerwasformedbybrushplatingonthesurfaceofthehalfshaftsleeveof40Mnsubstrate.Thecoatingandsubstratesampleswerepreparedbywirecuttingtechnology.Themicro-morphologyofthecoatingandsubstratesampleswereobservedbymetallo‐graphicmicroscope，thehardnessdistributionofthesampleswasverifiedbyhardnesstester，andthephaseanalysisofthesampleswascarriedoutbyX-raydiffractometer.Theresultsshowthatwithinthemaximumplatingrangeoftheremanufactureddepositionlayer，thecombinationofthecoatingandthesubstrateisreliable，thehardnessofthecoatingisbetterthanthatofthesubstrate，andtherearenottoomanyotherimpuritiesinthedepositedcoating.Theperformanceofthecoatingcanmeettheperfor‐mancerequirementsofremanufacture.Keywords：driveaxlehousing；halfshaftsleeve；coatingdeposition；coatingperformance；remanufac‐ture驱动桥壳是汽车重要的承重基础件［1］，位于驱动桥壳两端的半轴套管［2］在使用一段时间后，doi：10.3969/j.issn.1001-3849.2023.03.004收稿日期：2022-07-29修回日期：2022-09-03作者简介：沈晔超（1987...
