磁性和非磁性材料微小沟槽表面的磁力研磨光整加工
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摘要
以45钢和不锈钢SUS304为研究对象,研究采用磁力研磨法对磁性和非磁性工件的微小沟槽表面的光整加工。通过理论分析,解析磁力研磨的加工机理。分别采用径向充磁和轴向充磁圆盘环形永磁铁作为磁极,结合Ansys磁场模拟分析与磁力研磨实验,探讨不同材质工件微小沟槽表面的光整加工工艺。实验结果表明:对于45钢微小沟槽表面的光整加工,不能选用圆盘环形轴向充磁磁极,应该选用圆盘环形径向充磁磁极,研磨加工后沟槽底面的表面质量要好于侧面;对于不锈钢SUS304微小沟槽表面的光整加工,选用圆盘环形轴向充磁磁极更适合,加工后底面和侧面都能获得较好的表面质量,加工效率较高。
Takes 45# steel and stainless SUS304 as the research object,and studies the finishing machining of tiny groove surface of magnetic and non-magnetic material by magnetic abrasive finishing( MAF). Through theoretical analysis,parsing the mechanism of magnetic abrasive finishing. Radial magnetization of permanent magnets and axial magnetization of permanent magnets are used as magnetic pole respectively,and combines magnetic field simulation analysis in Ansys with magnetic grinding experiment to explore the finishing machining technology of tiny groove surface of different material workpieces. Not disk annular axial magnetization of magnetic pole but disk annular radial magnetization of magnetic pole should be chosen when finishing machining tiny groove surface of 45# steel,and after processing,bottom surface quality is better than the side. The disk annular axial magnetizing pole is more suitable when finishing machining tiny groove surface of stainless SUS304,and after processing,both the bottom surface and the side surface can obtain better surface quality,and machining efficiency is higher.
Takes 45# steel and stainless SUS304 as the research object,and studies the finishing machining of tiny groove surface of magnetic and non-magnetic material by magnetic abrasive finishing( MAF). Through theoretical analysis,parsing the mechanism of magnetic abrasive finishing. Radial magnetization of permanent magnets and axial magnetization of permanent magnets are used as magnetic pole respectively,and combines magnetic field simulation analysis in Ansys with magnetic grinding experiment to explore the finishing machining technology of tiny groove surface of different material workpieces. Not disk annular axial magnetization of magnetic pole but disk annular radial magnetization of magnetic pole should be chosen when finishing machining tiny groove surface of 45# steel,and after processing,bottom surface quality is better than the side. The disk annular axial magnetizing pole is more suitable when finishing machining tiny groove surface of stainless SUS304,and after processing,both the bottom surface and the side surface can obtain better surface quality,and machining efficiency is higher.
引文
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[3]Shinmura T,Takazawa K,Hatano E.Study on magnetic abrasive finishing(1 report)-on process principle and a few finishing characteristics.[J].JSPE,52:851-857.
[4]韩冰,邓超,陈燕.球形磁铁在弯管内表面磁力研磨中的应用[J].摩擦学学报,2013,6(33):565-569.
[5]Zou Y H,Akutsu S,Shinura T.Development of new ultraprecision magnetic abrasive finishing process[J].Journal of the Japan Society for Abrasive Technology,2010,54(2):97-100.
[6]刘文祎,张桂香,张萍萍.永磁场磁力研磨316L不锈钢实验研究[J].制造技术与机床,2013(3):116-120.
[7]Dhirendra K,Singh V K,Jain V Raghuram.Experimental investigations\sinto forces acting during a magnetic abrasive finishing process[J].Int JAdv Manuf Technol,2006,30(7):652-662.
[8]范春利.磁性磨粒的研制及其加工性能的实验分析与研究[D].吉林:吉林大学,2008:10-30.
[9]芦亚萍,马季,蔡军伟,等.模具自由曲面磁力超精研磨控制系统[J].农业机械学报,2006,37(7):163-166.