基于磁力研磨法光整内环槽的实验研究  

Experimental study on polish inner ring groove based on magnetic abrasive finishing

作　　者：焦安源[1] 李宗泽[2] 全洪军 陈燕[2] 

机构地区：[1]辽宁科技大学应用技术学院,辽宁鞍山114051 [2]辽宁科技大学机械工程与自动化学院,辽宁鞍山114051

出　　处：《制造技术与机床》2015年第8期114-117,共4页Manufacturing Technology & Machine Tool

摘　　要：液压系统中常常需要大量内环槽密封结构件,由于尺寸小、加工空间有限,传统研磨工艺难以有效对其表面进行光整加工。结合磁力研磨法的原理及特点提出采用该方法对工件内环槽表面进行实验加工,并总结了内环槽磁力研磨光整的基本工艺参数,经过60 min研磨加工后,内环槽两侧面平均表面粗糙度可由Ra3.47μm降至Ra0.63μm,底面的粗糙度也可由Ra3.25μm降至Ra0.70μm,且通过微观表面观察发现原始加工纹理得到了有效去除。结果表明,基于磁力研磨法,采用磁石直接吸附磁性磨料,与内环槽各个表面均保持1 mm间隙进行光整时,可以实现对内环槽3个面的同步光整加工。Hydraulic system often requires many inner seal ring grooves, because of the small size and limited workspace, it is difficult to polish surface of the inner ring groove by traditional grinding processes. Con-ducts some experiments for inner ring groove and summary the basic polishing parameters by combining the principles and characteristics of magnetic abrasive finishing. After 60 mins, the average surface roughness of two sides can reduce from Ra3. 471μm to Ra0.63 μm, the surface roughness of bottom can decrease from R 3.25 μm to R^0.70 μm, and original process texture has been effectively removed by observing the surface micro -topography. The results show that using permanent magnet to adsorb mag- netic abrasives directly and keep working gap 1 mm to every surface of ring groove can synchronously finish three surfaces of ring groove.

关 键 词：磁力研磨 表面粗糙度 内环槽 同步光整 

分 类 号：TG580.68[金属学及工艺—金属切削加工及机床]