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Non-resonant vibration-assisted magnetorheological finishing
Precision Engineering ( IF 3.6 ) Pub Date : 2021-04-01 , DOI: 10.1016/j.precisioneng.2021.03.016
Yan Gu , Mingshuo Kang , Jieqiong Lin , Ao Liu , Bin Fu , Penghui Wan

Nano-finishing of material surfaces is an important class of technology in precision manufacturing. This paper presents a non-resonant vibration-assisted magnetorheological finishing method for difficult-to-process materials. The aim is to enhance the shearing effects of the magnetorheological finishing. A two-dimensional vibration-assisted polishing device was developed, and the impact forces generated by the vibration could change the contact force during the experiments. A polishing force model that considered the vibration parameters was established, which could analyze the processing principles and explain the reason for the increase in shear force. Then, a set of processing experiments were carried out to study the effects of vibration parameters on the surface roughness and peak-to-valley value of silicon carbide samples. Finally, the relationship between the vibration parameters, surface quality, and polishing forces was studied. Theoretical calculations and experimental analyses show that the vibration could improve the shearing effects of the flexible polishing cluster. Meanwhile, a higher amplitude and frequency could raise the total shear force, which can lead to a better surface quality.



中文翻译:

非共振振动磁流变精加工

材料表面的纳米精加工是精密制造中的一类重要技术。本文提出了一种难加工材料的非共振振动辅助磁流变精加工方法。目的是增强磁流变整理的剪切作用。开发了一种二维振动辅助抛光装置,该振动产生的冲击力会在实验过程中改变接触力。建立了考虑振动参数的抛光力模型,该模型可以分析加工原理并解释剪切力增加的原因。然后,进行了一系列加工实验,研究了振动参数对碳化硅样品表面粗糙度和峰谷值的影响。最后,研究了振动参数,表面质量和抛光力之间的关系。理论计算和实验分析表明,振动可以改善柔性抛光团簇的剪切效果。同时,较高的振幅和频率可以提高总剪切力,从而可以改善表面质量。

更新日期:2021-04-08
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