基于旋转进给电磁场的不规则弯管内表面磁研磨研究
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摘要
目的将磁力研磨与单片机控制电磁场结合,提高不规则弯管内表面的质量与使用性能。方法根据静态磁场工艺理论及磁粒运动轨迹模型,通过电流控制电磁场,设计最佳磁路轨迹,进而形成旋转进给磁场,以提高电磁研磨效率。螺旋式分布电磁铁形成磁粒的螺旋加工轨迹,避免磁轭支撑旋转进给加工空间弯管的干涉问题,并且可多段同时加工以提高加工效率。通过静态磁场理论对磁路轨迹分析,研究弯管磨削径向辅助磁极的螺旋磨削进给轨迹。结果针对SUS304水龙头内腔表面抛光实验,当磨粒的平均粒径为250μm时,研磨液的用量为8 m L,转速在800 r/min内,经过50 min的研磨,工件内表面的粗糙度值由Ra 1.1μm降至Ra 0.38μm。结论基于旋转进给电磁场下辅助磁极的磁力研磨,对改善弯管内表面质量,提高使用寿命有明显作用。
The work aims to combine magnetic abrasive finishing with single chip microcomputer control electromagnetic field to improve quality and service performance of internal surface irregular bend pipe. According to theory of static magnetic field and model of magnetic particle trajectory, the optimum magnetic path was designed by controlling electromagnetic field through current and the rotating feed magnetic field was formed to improve the electromagnetic grinding efficiency. The spiral machining track of the magnetic particle was formed by spiral distributed electromagnet to avoid the interference on the elbow bent in rotating feeding process space of magnetic support and improve the processing efficiency by processing in multiple stages. The track of magnetic track was analyzed by the theory of static magnetic field and the feed path of the spiral grinding of the auxiliary magnetic pole in radial direction of bend pipe was studied. For internal surface polishing of SUS304 faucet, when the average particle size was 250 μm, the amount of grinding fluid was 8 m L and the speed was within 800~1000 r/min. After grinding of 50 min, the roughness value on internal surface of workpiece dropped to Ra 0.38 μm from Ra 1.1 μm. The magnetic grinding based on the auxiliary magnetic pole under the rotating feeding electromagnetic field has obvious effects on improving the internal surface quality of the bend pipe and the service life.
The work aims to combine magnetic abrasive finishing with single chip microcomputer control electromagnetic field to improve quality and service performance of internal surface irregular bend pipe. According to theory of static magnetic field and model of magnetic particle trajectory, the optimum magnetic path was designed by controlling electromagnetic field through current and the rotating feed magnetic field was formed to improve the electromagnetic grinding efficiency. The spiral machining track of the magnetic particle was formed by spiral distributed electromagnet to avoid the interference on the elbow bent in rotating feeding process space of magnetic support and improve the processing efficiency by processing in multiple stages. The track of magnetic track was analyzed by the theory of static magnetic field and the feed path of the spiral grinding of the auxiliary magnetic pole in radial direction of bend pipe was studied. For internal surface polishing of SUS304 faucet, when the average particle size was 250 μm, the amount of grinding fluid was 8 m L and the speed was within 800~1000 r/min. After grinding of 50 min, the roughness value on internal surface of workpiece dropped to Ra 0.38 μm from Ra 1.1 μm. The magnetic grinding based on the auxiliary magnetic pole under the rotating feeding electromagnetic field has obvious effects on improving the internal surface quality of the bend pipe and the service life.
引文
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[14]ZOU Y H,SHINMURA T.Study on Magnetic Field Assisted Machining Process Using Magnetic Machining Jig-application to Internal Finishing of Thick Stainless Steel Tubing[J].Journal of the Japan Society for Abrasive Technology,2004,48(8):444.
[15]陈燕,张耀明,邓超,等.V形磁铁在SUS304管内表面抛光中的应用[J].机械工程学报,2014,50(15):187-191.CHEN Yan,ZHANG Yao-ming,DENG Chao,et al.Application of V-shaped Magnet in Polishing the Inner Surface of the SU304 Tubing[J].Journal of Mechanical Engineering,2014,50(15):187-191.
[16]TIAN Lu-lin,YANG Xiao-ping,LI Yan.Study of Analytical Magnetic Force Model for Permanent Magnetic and Permanent Magnetic Bearings[J].Tribology,2008,28(1):73-77.
[17]孙岩,陈燕,兰勇.磁力研磨法在航空密封圈模具研磨抛光中的应用[J].制造技术与机床,2014(7):37-40.SUN Yan,CHEN Yan,LAN Yong.Application of Magnetic Abrasive Finishing in the Mould of Aviation Sealing Ring[J].Manufacturing Technology and Machine Tool,2014(7):37-40.
[18]KANG J,YAMAGUCHI H.Internal Finishing of Capillary Tubes by Magnetic Abrasive Finishing Using a Multiple Pole-tip System[J].Precision Engineering,2012,36(3):510-516.
[2]江志强,杨合,詹梅,等.钛合金管材研制及其在航空领域应用的现状与前景[J].塑性工程学报,2009,16(4):44-50.JIANG Zhi-qiang,YANG He,ZHAN Mei,et al.State-of-the-arts and Prospectives of Manufacturing and Application of Titanium Alloy Tube in Aviation Industry[J].Journal of Plasticity Engineering,2009,16(4):44-50.
[3]SHINMURA T,SHINBO Y,IIZUKA T.A New Internal Finishing Process of Non-ferromagnetic Tubing by Applying a Rotating Magnetic Field[J].The Japan Society for Precision Engineering,1993,59(6):945-951.
[4]廖明,韩冰,陈燕,等.钛合金管内表面的电化学磁力研磨复合光整试验[J].中国表面工程,2016,29(3):123-131.LIAO Ming,HAN Bing,CHEN Yan,et al.Inner Surface of Titanium Alloy Tube by Eletrochemical Magnetic Abrasive Compound Finishing[J].China Surface Engineering,2016,29(3):123-131.
[5]邓超,韩冰,陈燕.磁研磨法对钛合金弯管内表面的抛光研究[J].航空制造技术,2015(3):61-63.DENG Chao,HAN Bing,CHEN Yan.Study of Inner Surface Polishing of Titanium Alloy Elbow Pipe by Magnetic Abrasive Finishing[J].Aeronautical Manufacturing Technology,2015(3):61-63.
[6]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,2015,32(2):131-137.CHEN Y,ZHANG G B,HAN B,et al.Experimental Investigation of Magnetic Abrasive Finishing for Super Precision Polishing of Inner Surface of the Ceramic Tube[J].Tribology,2015,32(2):131-137.
[7]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):565-570.HAN Bing,DENG Chao,CHEN Yan.The Spherical Magnet Processing of Inner Surface of Bending Pipe by Magnetic Abrasive Finishing[J].Tribology,2013,33(6):565-570.
[8]SHINMURA T,YAMAGUCHI H.Study on a New Internal Finishing Process of a Non-ferromagnetic Tube by the Application of a Linearly Traveling Magnetic-field-on the Process Principle and the Behaviors of Magnetic Finishing Tool[J].International Journal of the Japan Society for Precision Engineering,1994,28(1):29-34.
[9]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 for Machining in Ternal Surface of Elbow by Magnetic Abrasive Method[J].China Mechanical Engineering,2015,26(6):814-817.
[10]陈燕,周锟,牛凤丽,等.航空发动机整体叶盘磁力研磨光整实验[J].航空动力学报,2015,30(10):2323-2330.CHEN Yan,ZHOU Kun,NIU Feng-li,et al.Aeroengine Blisk Magnetic Abrasive Finishing Experiment[J].Journal of Aerospace Power,2015,30(10):2323-2330.
[11]YAMAGUCHI H,SHINMURA T.Study on a New Internal Finishing Process by the Application of Magnetic Abrasive Machining(2nd Report,Effects of Magnetic Field Distribution on Magnetic Force Acting on Magnetic Abrasives)[J].Transactions of the Japan Society of Mechanical Engineers,1994,60(578):3595.
[12]YAMAGUCHI H,SRIVASTAVA A K,TAN M A,et al.Magnetic Abrasive Finishing of Cutting Tools for Machining of Titanium Alloys[J].CIRP Annalsmanufacturing Technology,2012,61(1):311-314.
[13]YAMAGUCHI H,KANG J,HASHIMOTO F.Metastable Austenitic Stainless Steel Tool for Magnetic Abrasive Finishing[J].CIRP Annals-manufacturing Technology,2011,60(1):339-342.
[14]ZOU Y H,SHINMURA T.Study on Magnetic Field Assisted Machining Process Using Magnetic Machining Jig-application to Internal Finishing of Thick Stainless Steel Tubing[J].Journal of the Japan Society for Abrasive Technology,2004,48(8):444.
[15]陈燕,张耀明,邓超,等.V形磁铁在SUS304管内表面抛光中的应用[J].机械工程学报,2014,50(15):187-191.CHEN Yan,ZHANG Yao-ming,DENG Chao,et al.Application of V-shaped Magnet in Polishing the Inner Surface of the SU304 Tubing[J].Journal of Mechanical Engineering,2014,50(15):187-191.
[16]TIAN Lu-lin,YANG Xiao-ping,LI Yan.Study of Analytical Magnetic Force Model for Permanent Magnetic and Permanent Magnetic Bearings[J].Tribology,2008,28(1):73-77.
[17]孙岩,陈燕,兰勇.磁力研磨法在航空密封圈模具研磨抛光中的应用[J].制造技术与机床,2014(7):37-40.SUN Yan,CHEN Yan,LAN Yong.Application of Magnetic Abrasive Finishing in the Mould of Aviation Sealing Ring[J].Manufacturing Technology and Machine Tool,2014(7):37-40.
[18]KANG J,YAMAGUCHI H.Internal Finishing of Capillary Tubes by Magnetic Abrasive Finishing Using a Multiple Pole-tip System[J].Precision Engineering,2012,36(3):510-516.