超高速点磨削砂轮磨料层优化和表面形貌评价  

Evaluation of Abrasive Layer Optimization of Grinding Wheel and Its Surface Topography After Super High-Speed Point Grinding

作　　者：仇健[1] 巩亚东[1] 刘昌付[1] 郑敬超[2] 

机构地区：[1]东北大学机械工程与自动化学院,辽宁沈阳110004 [2]第一汽车集团公司技术中心,吉林长春130011

出　　处：《东北大学学报（自然科学版）》2010年第1期111-114,共4页Journal of Northeastern University(Natural Science)

基　　金：国家自然科学基金资助项目(50775032)

摘　　要：点磨削砂轮磨料层采用有粗磨区修整倾角的结构可获得良好的磨削性能,较传统砂轮磨料层结构可获得更理想的磨后表面.提出了将平行砂轮改进成倾斜型砂轮以优化点磨削砂轮的磨料层结构,并应用激光传感器配合光学显微镜评价砂轮形貌,研究相关参数与砂轮磨削特性和加工质量间的关系.试验发现,优化后的点磨削砂轮磨料层结构更加合理,磨粒分布均匀且出刃高度波动很小,可以保证优质磨削表面.inclined dressing angle in the coarse grinding zone,by which a finer and smoother ground surface can be obtained in comparison to conventional abrasive layer. A method is therefore proposed to change the grinding wheel edge from parallel into inclined form so as to optimize the structure of abrasive layer. Combining the laser sensor with optical microscope to evaluate the topography of wheel surface,the correlations between the relevant parameters,grinding characteristics and grinding performance are investigated. It is found experimentally that the optimized abrasive layer is more suitable for grinding,and the abrasive grain distribution is uniform with very small fluctuation of heights of protruding grains,thus ensuring the high-quality ground surface.

关 键 词：超高速点磨削 磨料层 砂轮形貌 表面质量 优化 评价 

分 类 号：TG580.614[金属学及工艺—金属切削加工及机床]