强化研磨中加工参数对微凹坑形貌的影响
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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.
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.
引文
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[7] 杨奇彪,陈中培,陈列,等.纳秒激光加工微凹坑对YG3表面浸润性的影响[J].中国表面工程,2018,31(3):1-8.
[8] 刘小君,董磊,王森,等.微凹坑织构表面对脂润滑关节轴承摩擦特性的影响[J].摩擦学学报,2014,34(4):387-392.
[9] 王匀,柏云,杜金星,等.贫油润滑条件下H13模具钢表面微凹坑几何参数的优化研究[J].热加工工艺,2018,47(6):184-187.
[10] 刘小君,黄毅,王伟,等.三维表面形貌的连通性表征[J].工程图学学报,2007(5):88-92.
[11] 李敦桥,刘小君,黄毅,等.规则凹坑表面的连通性分析[J].合肥工业大学学报,2009,32(11):1633-1636.
[12] Kim B,Chae Y H,Choi H S.Effects of surface texturing on the frictional behavior of cast iron surfaces[J].Tribology International,2014,70(2):128-135.
[13] 刘晓初,萧金瑞,陶建华,等.一种耐磨合金钢工件表面的强化研磨方法[P].中国专利:CN103878703A,2014-06-25.
[2] 周建忠,钟辉,黄舒,等.AZ31B镁合金激光表面微凹坑效应及其电化学腐蚀行为[J].中国激光,2015,42(3):93-99.
[3] Kawasegi N,Sugimori H,Morimoto H,et al.Development of cutting tools with microscale and nanoscale textures to improve frictional behavior [J].Precision Engineering,2009,33(3):248-254.
[4] Menezes P L,Kishore,Kailas S V,et al.Influence of surface texture and roughness of softer and harder counter materials on friction during sliding[J].Journal of Materials Engineering & Performance,2012,24(1):1-11.
[5] Menezes P L,Kishore,Kailas S V.Role of surface texture and roughness parameters in friction and transfer layer formation under dry and lubricated sliding conditions[J].International Journal of Materials Research,2013,99:795-807.
[6] 董慧芳,刘焜,王伟,等.激光加工微凹坑轴表面对唇形密封泵吸及摩擦特性的影响[J].摩擦学学报,2012,32(2):126-132.
[7] 杨奇彪,陈中培,陈列,等.纳秒激光加工微凹坑对YG3表面浸润性的影响[J].中国表面工程,2018,31(3):1-8.
[8] 刘小君,董磊,王森,等.微凹坑织构表面对脂润滑关节轴承摩擦特性的影响[J].摩擦学学报,2014,34(4):387-392.
[9] 王匀,柏云,杜金星,等.贫油润滑条件下H13模具钢表面微凹坑几何参数的优化研究[J].热加工工艺,2018,47(6):184-187.
[10] 刘小君,黄毅,王伟,等.三维表面形貌的连通性表征[J].工程图学学报,2007(5):88-92.
[11] 李敦桥,刘小君,黄毅,等.规则凹坑表面的连通性分析[J].合肥工业大学学报,2009,32(11):1633-1636.
[12] Kim B,Chae Y H,Choi H S.Effects of surface texturing on the frictional behavior of cast iron surfaces[J].Tribology International,2014,70(2):128-135.
[13] 刘晓初,萧金瑞,陶建华,等.一种耐磨合金钢工件表面的强化研磨方法[P].中国专利:CN103878703A,2014-06-25.