采用粘结法的磁性磨粒制备工艺及实验研究

摘要/Abstract

摘要： 现有的粘结法制备工艺存在混合不均等问题，且磁介质相和磨粒相在破碎过程中会发生分离，易造成浪费，为此，提出了一种新的粘结法磁性磨粒制备工艺。在相同条件下，运用两种不同工艺分别制备了两种磁性磨粒，并进行了实验研究。采用扫描电镜、三维超景深显微镜观测试件表面，并用电子天平测试试件光整加工前后的质量变化。实验结果表明，采用新粘结法工艺制备的磁性磨粒对试件进行光整加工10 min后，表面粗糙度值Ra从0.800 μm减小到0.076 μm，材料去除率的最大值为0.67 μm/min。与现有粘结法工艺制备的磁性磨粒相比，新粘结法制备的磁性磨粒的微观结构良好、各成分分布均匀，加工性能更加优异。

关键词: 磁性磨粒, 粘结法, 搅拌, 光整加工

Abstract: The original bonding preparation technology had the problems of uneven mixing, and magnetic medium phases and abrasive phases would separate during the crushing processes, which might be easy to cause waste, so the magnetic abrasive particle preparation technology was proposed by a new bonding method. Under the same condition, two kinds of magnetic abrasive particles were prepared by two different technologies and the experiments were carried out. The workpiece surfaces were observed by scanning electron microscopy and three-dimensional ultra-depth of field microscopy, and the electronic balance was used to measure the quality changes of workpieces before and after finishing. The experimental results show that when the workpiece is polished by magnetic abrasive particles for 10 min based on new bonding method, the surface roughness value of Ra is decreased from 0.800 μm to 0.076 μm, and the maximum material removal rate is as 0.67 μm/min. Compared with magnetic abrasive particles prepared by the original bonding method, the magnetic abrasive particles prepared by the new bonding method have good microstructures, uniform distribution of each component and better processing performance.

Key words: magnetic abrasive particle, bonding method, stir, finishing

中图分类号:

TH16
TB333

赵文渊1,2;李文辉1,2;白小云1;李秀红1,2;杨胜强1,2;郝志明1,2. 采用粘结法的磁性磨粒制备工艺及实验研究[J]. 中国机械工程.

ZHAO Wenyuan1,2;LI Wenhui1,2;BAI Xiaoyun1;LI Xiuhong1,2;YANG Shengqiang1,2;HAO Zhiming1,2. Preparation Technology and Experimental Study of Magnetic Abrasive Particles by Bonding Method[J]. China Mechanical Engineering.

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