摘要
采用烧结法制备铁基白刚玉磁性磨料,并对3Cr2Mo模具钢材料进行磁力研磨加工实验。铁基相和研磨相的粒径比会严重影响加工效果,根据摩擦理论推导出磁性磨料的最佳粒径比A为1.33-3.32。通过理论分析与实验相结合的方法评价磁性磨料的磨削性能,验证了当铁基白刚玉磁性磨料的研磨相粒径d一定时,磨削深度ap随铁基相与研磨相粒径比的增大而增大,加工效率提高但加工质量降低。当铁基白刚玉磁性磨料铁基相与研磨相的粒径比为3时,其磨削性能最佳。
The iron-based white alumina magnetic abrasive particles were prepared by the sintering method and magnetic abrasive finishing experiments of 3Cr2 Mo die steel were carried out. The results show that the particle diameter ratio between ferromagnetic particle size and abrasive particle size greatly affect the processing effect,and the best particle diameter ratio A is1.33-3.32 based on the friction theory. The polishing performance of magnetic abrasive particle was evaluated with theoretical analysis and experimental verification. It is verified that the grinding depth apincreases along with the ratio between ferromagnetic particle size and abrasive particle size increasing when the diameter of abrasive particle is fixed,and the polishing efficiency is improved but the polishing quality is low. When the particle diameter ratio between ferromagnetic particle size and abrasive particle size is 3,the iron-based white alumina magnetic abrasive particles have the most optimal polishing performance.
出处
《兵器材料科学与工程》
CAS
CSCD
北大核心
2015年第6期35-40,共6页
Ordnance Material Science and Engineering
基金
国家自然科学基金重点项目(51105187)
关键词
磁力研磨
磁性磨料
粒径比
磨削深度
magnetic abrasive finishing
magnetic abrasive
particle diameter ratio
grinding depth
