摘要
为解决特大型、异型零件光整加工的难题 ,提出了脉冲电路控制产生旋转磁场实现磁粒光整加工的新思路。研究旋转磁场磁粒光整加工原理 ,并对旋转磁场发生装置进行设计分析及实验研究。结果表明 ,磁粒填充量直接影响材料去除量和表面粗糙度 ,且存在最佳值 ;磁粒中添加合理比例和粒度的铁粉 ,可以有效地提高光整加工效率 ,改善表面粗糙度。
In order to solve the difficult problem of internal finishing for outsize and abnormal shape pipe, the new technology of magnetic field controlled by pulse circuit for realizing magnetic abrasive machining (MAM) is presented. The mechanism of MAM by applying a rotating magnetic field is investigated, and the generation device of rotating magnetic field is analyzed and designed. The results show: (1) amount of magnetic abrasive (MA) supplied effects on the stock removal and the surface roughness directly, and it has optimum value. (2) the finishing efficiency and surface roughness can be improved effectively if MA is mixed with iron powders in rational mesh size or weight percentage. The technology will offer useful basis in practical manufacture.
出处
《中国机械工程》
EI
CAS
CSCD
北大核心
2001年第11期1304-1306,1326,共4页
China Mechanical Engineering
基金
国家自然科学基金资助项目 ( 5 9775 0 73)
塑性成形模拟及模具技术国家重点实验室开放课题
关键词
旋转磁场
磁粒
光整加工
加工质量
rotating magnetic field magnetic abrasive finishing machining machining quality