超声研磨Al_2O_3陶瓷材料的表面粗糙度特征研究  

SURFACE ROUGHNESS OF Al_2O_3 CERAMICS AFTER ULTRASONIC-FINISHING

作　　者：李章东[1] 和平安[1] 赵波[1] 

机构地区：[1]焦作工学院机械系,河南焦作454000

出　　处：《金刚石与磨料磨具工程》2004年第4期46-49,共4页Diamond & Abrasives Engineering

摘　　要：通过对Al2 O3陶瓷工件的普通及超声研磨实验 ,分析了超声研磨加工中各个加工参数和陶瓷工件表面粗糙度的相互关系 ,得出径向超声振动研磨达到最佳表面粗糙度的工件转速为 12 0～ 2 60r min ;径向超声振动研磨要得到最佳表面的研磨压力在 45 0N左右 ,过大或过小均可引起表面粗糙度恶化。在相同转速和相同压力下 ,超声研磨工件的表面粗糙度较普通研磨工件的小 ;当转速较小时 ,W 5与W2 0研磨的表面粗糙度变化不大 ,随着转速升高 ,粗糙度先变小后变大 ,在n =2 5 0n min左右Ra值最小。研究结论为高效研磨Al2 O3陶瓷提供了依据。Material surface roughness of ultrasonic finishing is studied through ultrasonic finishing of Al_2O_3 ceramic cylindrical workpiece. The relationship of finishing parameters and particle size of whetstone and material surface roughness is analyzed. The research results show that the best rotating speed of workpiece is 120-260r/min ,and the best pressure of ultrasonic finishing is 450N. At the same time,The surface roughness of ultrasonic finishing is always lower than that of conventional finishing under equal conditions.

关 键 词：超声研磨 研磨参数 表面粗糙度 

分 类 号：TG58[金属学及工艺—金属切削加工及机床]