磁粒研磨TC4孔棱边毛刺的机理及试验研究
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摘要
目的探究磁粒研磨法去除TC4孔棱边毛刺的机理,寻求去除TC4孔棱边毛刺的最佳工艺方案。方法分别对磁极单轨迹运动、磁极复合轨迹运动下磁粒研磨去除孔棱边毛刺的基本原理进行分析,分别利用ANSOFT和ANSYS软件对孔棱边处的磁场强度和切削力进行模拟分析。通过磁粒研磨法对孔棱边毛刺进行研磨去除试验,利用超景深3D显微镜测取孔棱边毛刺的微观形貌以及毛刺的高度。结果磁极为单轨迹运动时,磁极自转转速为2000 r/min,研磨加工15 min后,TC4孔棱边的毛刺高度由原始的60μm左右降至5μm左右。磁极为复合轨迹运动时,磁极自转转速为2000 r/min,磁极公转速度为30 r/min,加工时间为12 min,TC4孔棱边的毛刺已经完全去除,且孔表面微观形貌较好。结论当磁极为复合轨迹运动时,相对于传统的磁极单轨迹运动,孔棱边毛刺的去除效率进一步提高,TC4孔表面微观形貌得到极大改善。
The work aims to investigate the mechanism of removing the burr of TC4 hole by magnetic particle finishing and seek the best technological process for removing burr of TC4 hole. Firstly, the basic principle of magnetic particle grinding was analyzed respectively for single track motion and compound track motion of magnetic pole. Secondly, the magnetic field strength and cutting force at the edge of the hole were simulated by ANSOFT and ANSYS software respectively. Finally, the grinding removal test was carried out by magnetic particle grinding, and the burr height and micromorphology were measured by the ultra deep 3 D microscope. When the process way was single track motion, the rotation speed of the magnetic pole was 2000 r/min, the height of the burr of the edge of the TC4 hole was reduced to about 5 μm from the original 60 μm after 15 min grinding. When process way was compound track motion,the rotation speed of the magnetic pole was 2000 r/min, the magnetic pole revolution speed was 30 r/min, the process time was 12 min,and the burr of the TC4 hole edge was removed absolutely and the micromorphology of the surface of hole was better. When the process way is compound track motion, the removal efficiency of burr is further improved compared with that in the traditional single track motion of the magnetic pole, and the micromorphology of the surface of the TC4 hole is greatly improved.
The work aims to investigate the mechanism of removing the burr of TC4 hole by magnetic particle finishing and seek the best technological process for removing burr of TC4 hole. Firstly, the basic principle of magnetic particle grinding was analyzed respectively for single track motion and compound track motion of magnetic pole. Secondly, the magnetic field strength and cutting force at the edge of the hole were simulated by ANSOFT and ANSYS software respectively. Finally, the grinding removal test was carried out by magnetic particle grinding, and the burr height and micromorphology were measured by the ultra deep 3 D microscope. When the process way was single track motion, the rotation speed of the magnetic pole was 2000 r/min, the height of the burr of the edge of the TC4 hole was reduced to about 5 μm from the original 60 μm after 15 min grinding. When process way was compound track motion,the rotation speed of the magnetic pole was 2000 r/min, the magnetic pole revolution speed was 30 r/min, the process time was 12 min,and the burr of the TC4 hole edge was removed absolutely and the micromorphology of the surface of hole was better. When the process way is compound track motion, the removal efficiency of burr is further improved compared with that in the traditional single track motion of the magnetic pole, and the micromorphology of the surface of the TC4 hole is greatly improved.
引文
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[2]李哲,张德远,姜兴刚.钛合金旋转超声辅助钻削的出口毛刺[J].北京航空航天大学学报,2017,43(7):1380-1386.LI Zhe,ZHANG De-yuan,JIANG Xing-gang.Exit burr in rotary ultrasonic-assisted drilling of titanium alloys[J].Journal of Bei jing University of Aeronautics and Astronautics,2017,43(7):1380-1386.
[3]王贵成,张春晔.钻削毛刺生成与控制的研究(英文)[J].东南大学学报(英文版),2001(2):52-56.WANG Gui-cheng,ZHANG Chun-ye.Formation and control of drilling burrs[J].Journal of Southeast University,2001(2):52-56.
[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]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,2015,26(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,2015,26(6):814-817.
[6]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,2008,18(s1):369-373.
[7]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].International journal of advanced manufacturing technology,2015,80(9-12):1613-1623.
[8]VERMA G C,KALA P,PANDEY P M.Experimental investigations into internal magnetic abrasive finishing of pipes[J].International journal of advanced manufacturing technology,2016,88(5-8):1-12.
[9]JIAO A Y,QUAN H J,LI Z Z,et al.Study of magnetic abrasive finishing in seal ring groove surface operations[J].International journal of advanced manufacturing technology,2016,85(5-8):1195-1205.
[10]杨海吉,张晓君,陈燕,等.磁力研磨精密抛光φ4×150 mm TC4管内表面的实验研究[J].表面技术,2017,46(12):259-264.YANG Hai-ji,ZHANG Xiao-jun,CHEN Yan,et al.Polishing of inner surface ofφ4×150 mm TC4 tube by magnetic abrasive finishing[J].Surface technology,2017,46(12):259-264.
[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].Journal of tribology,2013,33(6):565-570.
[12]KIM T W,KWAK J S.A study on deburring of magnesium alloy plate by magnetic abrasive polishing[J].International journal of precision engineering&manufacturing,2010,11(2):189-194.
[13]徐文骥,余自远,孙晶,等.微小孔电化学去毛刺试验研究[J].航空制造技术,2011(19):70-75.XU Wen-ji,YU Zi-yuan,SUN Jing,et al.Experimental study on electrochemical deburring of miniature hole[J].Aeronautical manufacturing technology,2011(19):70-75.
[14]任翠红.超声去除小孔交叉孔处毛刺加工方法的研究[D].太原:太原理工大学,2014.REN Cui-hong.Research on machining method about ultrasonic deburring for small cross-hole[D].Taiyuan:Taiyuan University of Technology,2014.
[15]焦安源,全洪军,陈燕,等.超声磁力复合研磨TC4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].China mechanical engineering,2017,53(19):114-119.