Experimental Study on Increasing Magnetic Abrasive Finishing Efficiency of Finishing Nonferromagnetic Materials
Experimental Study on Increasing Magnetic Abrasive Finishing Efficiency of Finishing Nonferromagnetic Materials
复制标题
提高非铁磁材料磁力研磨精加工效率的实验研究
DOI：
10.4028/www.scientific.net/kem.359-360.300
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发表时间：
2007
期刊：
影响因子：
--
通讯作者：
G. Wu
中科院分区：
文献类型：
--
作者：
Shu Ren Zhang;L. Yang;G. Wu
磁力研磨精加工（MAF）是一种相对较新的精加工技术，它利用磁力进行精加工。本文分析了精整时磁通密度对精整压力和精整效率的影响。利用作者研制的圆柱形磁力精加工装置，对非铁磁材料和铁磁材料的圆柱形表面进行了一系列的精加工实验。针对非铁磁材料精加工时因精加工压力不足而导致精加工效率低、磨粒易逸出的问题，提出了一种利用精加工系统中的“增压袋”提高精加工压力的新方法。对使用“增压袋”和不使用“增压袋”整理非铁磁材料进行了大量的对比实验。在相同实验条件下，采用“增压袋”后，缩径量d由1μm增加到1.88μm，表面粗糙度由Ra0.315μm改善到Ra0.250μm。结果表明，采用“增压袋”后，精整压力明显提高，精整非铁磁材料的MAF效率显着提高。
Magnetic Abrasive Finishing (MAF) is relatively a new finishing technique which employs the magnetic force for finishing. In this paper, the influence of the magnetic flux density on the finishing pressure and the finishing efficiency during finishing is analyzed. With the cylindrical magnetic finishing apparatus developed by the author, a series of experiments on finishing the cylindrical surfaces of nonferromagnetic materials and ferromagnetic materials are carried out. To solve the problems of low finishing efficiency and abrasive particles escaping easily because of lack of finishing pressure during finishing nonferromagnetic materials, a new method of increasing the finishing pressure by using the “pressure-increasing bag” in the finishing system is put forward. A lot of comparative experiments on finishing nonferromagnetic materials with the “pressure-increasing bag” and without the “pressure-increasing bag” are performed. Under the same experimental conditions, the amount of diameter-reduction d is increased from 1μm to 1.88μm and the surface roughness is improved from Ra0.315μm to Ra0.250μm by using the “pressure-increasing bag”. The results show that the finishing pressure is increased obviously and the MAF efficiency of finishing nonferromagnetic materials is improved dramatically by using the “pressure-increasing bag”.