作　　者： ; ; ;

机构地区： 广州大学机械与电气工程学院

出　　处： 《组合机床与自动化加工技术》 2019年第4期133-135,139,共4页

摘　　要： 文章通过控制加工参数单一变量的方法进行强化研磨试验,来探究强化研磨中不同的加工参数对轴承表面微凹坑形貌的影响,然后利用扫描电镜得到轴承表面的形貌图。根据形貌图先从横向上对凹坑面积占有率A进行表征,再从纵向上对深谷区容积SV值与面积占比百分值之比λ进行表征,最后分析强化研磨加工参数与微凹坑表征结果的联系。结果表明:喷射压力、喷射时间和研磨料钢珠质量占比三个加工参数中,喷射压力、喷射时间与凹坑面积呈一定的非线性正比关系,而钢珠质量占比与凹坑面积呈一定的反比关系,喷射压力与凹坑深度呈正比关系,而研磨料钢珠质量占比,喷射时间与凹坑深度无明显关系。 This article used a method of controlling a single variable of processing parameters in in strengthening and polishing experiment, so as to explore the effect of different processing parameters on the micro-pit morphology of the bearing surface in strengthening and polishing, and use scanning electron microscopy to obtain the morphology of bearing surface. According to the morphology of bearing surface, firstly, the pit area occupancy rate A is characterized from the lateral direction, and then the ratio of the deep valley volume SV value to the area percentage ratio λ of the deep valley area is characterized from the longitudinal direction. Finally, the relationship between the parameters of strengthening and polishing and the results of micro-pit characterization is analyzed. The results showed injection pressure, injection time and abrasive ball quality accounted for three processing parameters and the proportion of the quality of the steel ball is inversely proportional to the area of the pit. The injection pressure is proportional to the depth of the pit, and the mass of the abrasive ball is not proportional to the depth of the pit.

关 键 词： 强化研磨 微凹坑 加工参数 形貌

领　　域： []