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磁场强度对锯丝表面磁性磨粒层形成的影响 被引量:1

Investigation on the effect of magnetic field strength on the formation of magnetic abrasive layer on the saw wire surface
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摘要 为了进一步揭示磁性磨粒在锯丝四周的排布规律和磁性磨粒聚集形状,开展了吸附于锯丝表面的磁性磨粒层形成机理研究。根据磁性磨粒的受力特性,建立了磁性磨粒层形成的数学模型,并仿真研究磁场强度对磁性磨粒层的影响规律;结合高速摄影和磁场发生装置设计并搭建观测实验平台,微观研究了磁性磨粒层的形成过程。结果表明:镀镍碳化硅磁性磨粒仅在顺磁区吸附,形成磁性磨粒层,其轮廓近似扇环形;磁场强度增大,磁性磨粒层堆积厚度增大。 In order to further reveal the distribution of magnetic abrasive around the saw wire and the accumulation shape of magnetic abrasive, the magnetic abrasive layer formation mechanism was studied. Based on the force analysis of the magnetic abrasive, the theoretical model of the magnetic abrasive layer formation was established, and the adsorption of magnetic abrasive layer on the saw wire surface under different magnetic field intensities was studied by using the numerical analysis software. An observation platform was designed by combining the high-speed camera and the magnetic field generation device, to analyze the formation of magnetic abrasive layer. The experimental researches were conducted to validate the theoretical model. The results show that the contour line of the magnetic abrasive layer adsorbed on the saw wire surface can be approximately regarded as a ring shape, and the magnetic abrasive layer thickness increases as the magnetic field strength increases.
作者 张威 金涨军 裘腾威 郑忠利 ZHANG Wei;JIN Zhang-jun;QIU Teng-wei;ZHENG Zhong-li(Research Center of Precision Mold Processing&Intelligent Manufacturing,Ningbo Polytechnic,Ningbo 315800,China;Key Laboratory of Special Purpose Equipment and Advanced Processing Technology,Ministry of Education,Zhejiang University of Technology,Hangzhou 310023,China)
出处 《磁性材料及器件》 CAS CSCD 2022年第1期24-28,共5页 Journal of Magnetic Materials and Devices
基金 宁波职业技术学院2021年度研究机构专项课题(NZ21JG004) 宁波职业技术学院高层次人才引进科研项目(RC201807)。
关键词 线锯切割 磁性磨粒层 磁场强度 wire sawing magnetic abrasive layer magnetic field strength
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