精密砂带研磨特性研究及应用  

Study and Application on the Abrasive Grinding Properties of Precision Abrasive Belt

作　　者：陈延君[1] 黄云[1] 朱凯旋[1] 黄智 

机构地区：[1]重庆大学机械工程学院,重庆400030 [2]重庆市材料表面精密加工及成套装备工程技术研究中心,重庆400021

出　　处：《重庆大学学报（自然科学版）》2006年第3期28-31,共4页Journal of Chongqing University

摘　　要：理论分析了精密砂带外圆研磨材料表面的特性,弄清了低粗糙度加工表面是由于磨粒切刃在材料表面形成了致密均匀的交叉微细磨痕,补偿了单一方向磨痕高度的不均匀.为研究淬硬合金不锈钢材料磨削加工表面粗糙度的主要影响因素,在齿轮泵齿轮轴上进行了磨削试验.结果表明:适当减小砂带接触压力能有效降低工件表面粗糙度;在稳定研磨时间内加工表面粗糙度值可以达到精密级.The characteristics of work piece＇ s surface under precision abrasive belt grinding are analyzed. A comprehensive understanding of the reason of low roughness value＇ s surface is found out, which the edge of grain formed compact and crossed micro grinding marks that can compensate for the inconsistence of grinding mark＇ s height in single grinding direction. The grinding test of gear shaft is done for the sake of doing research on the main factors of surface roughness in grinding quenching stainless steel. The results indicate that decreasing the vertical pressure is beneficial to reduce surface roughness of work piece, and the surface roughness also can reach the requirement of precision processing when steadily grinding.

关 键 词：精密加工 砂带 研磨 轴颈 

分 类 号：TG742[金属学及工艺—刀具与模具]