磁粒复合研磨SUS304不锈钢孔道的机理与试验研究
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摘要
目的为探究磁粒研磨法对SUS304不锈钢孔道表面质量的影响,优化磁粒研磨工件内表面的工艺方案。方法首先,基于磁极单轨迹运动和复合轨迹运动两种不同形式,分别对磁粒研磨孔道内表面的基本原理和运动轨迹进行了理论分析;其次,利用ANSYS软件对孔道内壁的磁场强度进行了有限元分析;最后,通过磁粒研磨法对孔道内壁进行试验验证。利用超景深3D显微镜和触针式表面粗糙度测量仪,分别测取孔道表面微观形貌和表面粗糙度。结果研磨加工时间均为15 min,磁极为单轨迹运动时,工件表面材料去除量为662 mg,孔道内壁的表面粗糙度值由原始的2.0μm降至0.48μm;磁极为复合轨迹运动时,工件表面材料去除量高达892 mg,孔道内壁的粗糙度值下降至0.24μm。结论磁极为复合轨迹运动时,相对于传统的磁极单轨迹运动,磁粒研磨效率进一步提高,工件表面微观形貌以及表面粗糙度都有明显改善,研磨后的工件内表面质量更佳。
The work aims to study the influence of magnetic particles finishing on the hole surface quality of SUS304 stainless steel and optimize the process program for grinding the workpiece inner surface by magnetic particle. Firstly, based on single trajectory motion and compound trajectory motion of magnetic pole, the basic principle and motion trajectory of grinding the hole inner surface by magnetic particle were analyzed theoretically. Secondly, the magnetic field strength of the hole inner wall was analyzed for finite element by ANSYS software. Finally, the verification test was conducted by using magnetic particle to grind the inner surface of the hole. The topography and roughness of the hole surface were measured by the ultra depth 3 D microscope and the stylus surface roughness meter. When the situation of magnetic pole was single trajectory motion, the process time was 15 min. When the material removal amount of the workpiece was about 662 mg, the surface roughness of the inner surface of the hole was reduced to Ra 0.48 μm from original Ra 2.0 μm. However, when the situation of magnetic pole was compound trajectory motion, the material removal amount of the workpiece was up to 892 mg and the roughness of the hole inner surface was reduced to Ra 0.24 μm from original Ra 2.0 μm. Therefore, as the magnetic pole movement is compound trajectory motion, compared with the traditional single trajectory motion, the grinding efficiency is further increased; the surface topography and surface roughness of the workpiece are obviously improved; and the surface quality of the workpiece after grinding is better than the former.
The work aims to study the influence of magnetic particles finishing on the hole surface quality of SUS304 stainless steel and optimize the process program for grinding the workpiece inner surface by magnetic particle. Firstly, based on single trajectory motion and compound trajectory motion of magnetic pole, the basic principle and motion trajectory of grinding the hole inner surface by magnetic particle were analyzed theoretically. Secondly, the magnetic field strength of the hole inner wall was analyzed for finite element by ANSYS software. Finally, the verification test was conducted by using magnetic particle to grind the inner surface of the hole. The topography and roughness of the hole surface were measured by the ultra depth 3 D microscope and the stylus surface roughness meter. When the situation of magnetic pole was single trajectory motion, the process time was 15 min. When the material removal amount of the workpiece was about 662 mg, the surface roughness of the inner surface of the hole was reduced to Ra 0.48 μm from original Ra 2.0 μm. However, when the situation of magnetic pole was compound trajectory motion, the material removal amount of the workpiece was up to 892 mg and the roughness of the hole inner surface was reduced to Ra 0.24 μm from original Ra 2.0 μm. Therefore, as the magnetic pole movement is compound trajectory motion, compared with the traditional single trajectory motion, the grinding efficiency is further increased; the surface topography and surface roughness of the workpiece are obviously improved; and the surface quality of the workpiece after grinding is better than the former.
引文
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[2]徐丽娜.液压阀阀孔加工技术研究[J].现代制造技术与装备,2017(8):143-144.XU Li-na.Research on machining technology of hydraulic valve hole[J].Modern manufacturing technology and equipment,2017(8):143-144.
[3]孙桓五.液体磁性磨具光整加工技术研究[D].太原:太原理工大学,2008.SUN Huan-wu.Study on the fluid magnetic abrasive finishing technology[D].Taiyuan:Taiyuan University of Technology,2008.
[4]SUNIL J,JAIN V K.Modeling and simulation of surface roughness in magnetorheological abrasive flow finishing(MRAFF)process[J].Wear,2006,261(7):856-866.
[5]全洪军.典型孔精密研磨工艺与试验研究[D].鞍山:辽宁科技大学,2016.QUAN Hong-jun.Precise finishing process and experimental research on typical hole[D].Anshan:University of Science and Technology Liaoning,2016.
[6]焦安源,全洪军,陈燕,等.超声磁力复合研磨钛合金锥孔的试验研究[J].机械工程学报,2017,53(19):114-119.JIAO An-yuan,QUAN Hong-jun,CHEN Yan,et al.Experimental research of titanium alloy taper hole by ultrasonic magnetic abrasive finishing[J].Journal of mechanical engineering,2017,53(19):114-119.
[7]韩冰,刘立鑫,陈燕.磁力研磨法加工弯管内表面的工艺参数优化[J].中国机械工程,2015(6):814-817.HAN Bing,LIU Li-xin,CHEN Yan.Optimization of process parameters on magnetic abrasive finishing to inner surface of bending pipe[J].China mechanical engineering,2015(6):814-817.
[8]肖阳,孙友松,陈光忠.永磁场磁力研磨TC11钛合金的实验研究[J].表面技术,2017,46(2):229-234.XIAO Yang,SUN You-song,CHEN Guang-zhong.Experimental study of magnetic abrasive finishing of TC11titanium alloy in permanent magnetic field[J].Surface technology,2017,46(2):229-234.
[9]KIM S O,KWAK J S.Magnetic force improvement and parameter optimization for magnetic abrasive polishing of AZ31 magnesium alloy[J].Transactions of nonferrous metals society of china(English edition),2008,18(s1):369-373.
[10]ZOU Y H,JIAO A Y,AIZAWA T.Study on plane magnetic abrasive finishing process-experimental and theoretical analysis on polishing trajectory[J].Advanced materials research,2010,126-128:1023-1028.
[11]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,2013,33(6):565-570.HAN Bing,DENG Chao,CHEN Yan.Spherical magnet processing of inner surface of bending pipe by magnetic abrasive finishing[J].Tribology,2013,33(6):565-570.
[12]陈燕,张广彬,韩冰,等.磁力研磨法对陶瓷管内表面超精密抛光技术的试验研究[J].摩擦学学报,2015(2):131-137.CHEN Yan,ZHANG Guang-bin,HAN Bing,et al.Experimental investigation of magnetic abrasive finishing for super precision polishing of inner surface of the ceramic tube[J].Tribology,2015(2):131-137.
[13]JIAO A Y,QUAN H J,LI Z Z,et al.Study of magnetic abrasive finishing in seal ring groove surface operations[J].The international journal of advanced manufacturing technology,2015,170:8029.
[14]焦安源,全洪军,邹艳华.平面研磨中磁粒刷运动轨迹规划的试验研究[J].机械设计与制造,2015(10):84-87.JIAO An-yuan,QUAN Hong-jun,ZOU Yan-hua.Experimental study on planning the trajectory of magnetic abrasive brush in plane finishing[J].Machinery design&manufacture,2015(10):84-87.
[15]杨海吉,张晓君,陈燕,等.磁力研磨精密抛光?4×150 mm TC4管内表面的实验研究[J].表面技术,2017(12):259-264.YANG Hai-ji,ZHANG Xiao-jun,CHEN Yan,et al.Polishing of inner surface of?4×150 mm TC4 by magnetic abrasive finishing[J].Surface technology,2017(12):259-264.
[16]JIAO A Y,QUAN H J,LI Z Z,et al.Study on improving the trajectory to elevate the surface quality of plane magnetic abrasive finishing[J].The international journal of advanced manufacturing technology,2015,80(9):1613-1623.