高能球磨法制备Al_2O_3/Fe磁性磨粒的工艺研究  

Study on Process of Preparing Fe-Al_2O_3 Magnetic Abrasive by High Energy Ball Milling

作　　者：王晓峰[1] 李文辉[1] 

机构地区：[1]太原理工大学机械工程学院,山西太原030024

出　　处：《机械设计与制造》2013年第7期134-136,139,共4页Machinery Design & Manufacture

基　　金：国家自然科学基金(51175365);高等学校博士学科点专项科研基金(20111402120003);山西省青年科技研究基金(2011021021-4)

摘　　要：磁性磨粒光整加工技术是利用永磁或者电磁发生装置产生的磁场力作为磁性磨粒的源动力对零件表面进行光整加工的一种新技术,它可以实现对零件进行表面抛光、去除毛刺、消除微观裂纹、降低表面粗糙度等加工。提出应用高能球磨法制备磁性磨粒的新工艺,分析了球磨过程中的工作原理。用纯铁粉作为磁性体,三氧化二铝粉作为磨料相,采用高能球磨法制备了三种不同时间的Fe-Al2O3磁性磨粒。采用X射线衍射仪和扫描电子显微镜分析了该磁性磨粒的物相组成和外观形貌,用特斯拉仪测试了磁性磨粒的磁感应强度。发现了该工艺简单,成本低,且有望进行大规模工业化生产。Magnetic abrasive finishing machining technology is a new technology to use the magnetic field force produced by permanent magnetic or electromagnetic device as the driving force of magnetic abrasive finishing machining of parts surface,which can realize the surface polishing,deburring,eliminating the micro crack,and reducing the surface roughness of parts.A new technology of preparing magnetic abrasives used high energy ball milling was put forward and the working principle was analyzed in the ball milling.Pure iron powder was used as the magnetic phase,corundum powder as the abrasive,and three different times Fe-Al2O3 magnetic abrasives were prepared by high energy ball milling method.X-ray diffraction and SEM were used to analyze the morphology and phase components of the magnetic abrasives.Magnetic flux density of the magnetic abrasives were tested by the instrument.It finds that the process is easy and low cost,so it would have great hope to accomplish large-scale industrialized production.

关 键 词：磁性磨粒 高能球磨 磁感应强度 

分 类 号：TH16[机械工程—机械制造及自动化] TG739[金属学及工艺—刀具与模具]