Effect of Profiling Magnetic Pole Head on the Inner Surface of Electromagnetic Finishing Pipe Fittings

被引：0
作者：
Pan M. [1 ]
Chen Y. [1 ]
Zhang D. [1 ]
机构：
[1] School of Mechanical Engineering and Automation, University of Science and Technology Liaoning, Anshan
来源：
Zhongguo Biaomian Gongcheng/China Surface Engineering | 2022年 / 35卷 / 06期
基金：
中国国家自然科学基金;
关键词：
304 stainless steel pipe; alternating magnetic field; lapping pressure; magnetic abrasive finishing; profiling magnetic pole head; surface quality;
D O I：
10.11933/j.issn.1007-9289.20220119001
中图分类号：
学科分类号：
摘要：
In view of the difficulty in processing the oxide film on the inner surface of the 304 stainless steel tube and the quality problems such as groove-like texture, micro-cracks and pits on the surface after processing, the magnetic abrasive finishing method is used to remove the oxide film on the inner surface of the 304 stainless steel tube. The variation law of magnetic field intensity and lapping pressure in the processing area is explored by designing magnetic pole heads with different taper and combined with simulation. Finally, the finishing test is compared with simulation. The results show that with the increase of the taper of the magnetic pole head, the magnetic field strength increases first and then decreases, and the lapping pressure increases first and then decreases under the influence of magnetic field strength. When the taper of the magnetic pole head is 80°, the magnetic field strength is the strongest and the lapping pressure is the largest. After finishing, the inner surface roughness of the pipe fitting is changed from the original Ra 3.06 μm down to Ra 0.23 μm. The maximum height difference of the surface is changed from the original 47.4 μm down to 19.6 μm. The oxide film on the inner surface is removed, showing uniform lapping marks. The force simulation of magnetic abrasive particle movement and finishing test show that the machining with 80 ° profiling magnetic pole head can effectively improve the inner surface quality of 304 stainless steel pipe. © 2022 Chinese Mechanical Engineering Society. All rights reserved.
引用
收藏
页码：274 / 285
页数：11
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