HR-2钢精密零件表面磁力研磨磨粒加工机理研究  

Researches on mechanism of magnetic abrasive surface finishing of HR-2 steel precise parts

作　　者：李建国[1] 王勇[1] 

机构地区：[1]中国工程物理研究院电子工程研究所,绵阳621900

出　　处：《金刚石与磨料磨具工程》2005年第4期68-69,共2页Diamond & Abrasives Engineering

摘　　要：磁性研磨是一种利用磁场中的磁性磨料对具有相对运动的工件表面进行光整加工的新技术.本文对磁性磨粒的加工机理进行了分析,对奥氏体不锈钢精密薄壁零件表面进行了磁性研磨工艺试验.通过试验找出了磁性原料:铝镍钴(AlNiCo);磁性磨料粒度:60#～70#;在工件转速、磁感应强度、研磨时间等工艺参数为定值时,加工的奥氏体不锈钢精密薄壁零件的表面粗糙度达到了Ra0.1μm的要求.The magnetic abrasive finishing is a new technology used to process the surface of work piece by the relative motion with magnetic abrasive in the magnetic field. Mechanism of magnetic abrasive finishing grains were analyzed in this paper. Magnetic abrasive finishing experiment on austenitic stainless steel parts were conducted. Ideal magnetic metal for making magnetic abrasive grains, namely ALNiCo, was found. Ideal grain size is supposed to be 60^#-70^#. When the workpiece rotating speed, magnetic induction intensity and the machining time remain constant, the machined surface roughness of HR-2 steel precision parts can attain Ra 0. 1μm.

关 键 词：磁性研磨 磁性磨粒 工艺参数 

分 类 号：TG580.68[金属学及工艺—金属切削加工及机床]