Research on Material Removal Mechanism of Magnetorheological Finishing

2006 ◽  
Vol 532-533 ◽  
pp. 133-136
Author(s):  
Gui Wen Kang ◽  
Fei Hu Zhang
Keyword(s):  
Material Removal ◽  
Optical Materials ◽  
Magnetic Particles ◽  
Optical Glass ◽  
Material Removal Mechanism ◽  
Magnetorheological Finishing ◽  
Carrier Fluid ◽  
Finishing Process ◽  
Main Factors ◽  
Surface Figure

Magnetorheological finishing (MRF) is a novel precision optical machining technology. MRF utilizes magnetic particles, nonmagnetic polishing abrasives in carrier fluid, and a magnetic field to finish optical materials. Owing to its flexible finishing process, MRF eliminates subsurface damage, corrects surface figure errors and the finishing process can be easily controlled by computer. To achieve deterministic finishing, it’s necessary to know the mechanism of material removal. Different magnetorheological fluids are used to finish optical glass on the same machining condition. The material removal and surface quality are examined after finishing with no polishing abrasive, aluminium oxide and cerium oxide. The results show that the hardness of polishing abrasive is not the main factors to affect material removal.

Study on the Removal Mechanism of Magnetorheological Finishing (MRF) by Using of Nano-Diamond Abrasives

2014 ◽  
Vol 1027 ◽  
pp. 226-229
Author(s):  
Zhi Qiang Xu ◽  
Shao Hui Yin ◽  
Sheng Gong ◽  
Yong Qiang Wang
Keyword(s):  
Surface Quality ◽  
Material Removal ◽  
High Efficiency ◽  
Optical Glass ◽  
Magnetorheological Fluid ◽  
Removal Mechanism ◽  
Material Removal Mechanism ◽  
Magnetorheological Finishing ◽  
Advanced Machining ◽  
Series Of Experiments

Magnetorheological finishing (MRF) is an advanced machining technology can achieve high efficiency and smoother surfaces. This study discusses the material removal mechanism of MRF, and proposes a kind of magnetorheological fluid with the nano-diamond abrasives. A series of experiments on the BK7 optical glass were conducted to investigate effects of the concentration of nano-diamond abrasives on surface quality and removal efficiency.

Research on Material Removal of Magnetorheological Finishing

2007 ◽  
Vol 329 ◽  
pp. 285-290
Author(s):  
Gui Wen Kang ◽  
Fei Hu Zhang
Keyword(s):  
Material Removal ◽  
Removal Rate ◽  
Mathematic Model ◽  
Magnetorheological Finishing ◽  
Fixed Rate ◽  
Hydrodynamic Analysis ◽  
Finishing Process ◽  
Material Removal Model ◽  
Removal Model ◽  
Surface Figure

Magnetorheological finishing (MRF) is a novel precision optical machining technology. Owing to its flexible finishing process, MRF can eliminate subsurface damage, smooth rms micro roughness and correct surface figure errors. The finishing process can be easily controlled by a computer. Material removal model in MRF is established. According to Preston equation in optical machining, mathematic model of material removal rate in MRF rotating at fixed rate is established through hydrodynamic analysis of the MR fluid flow in the polishing zone. The validity of the model is examined by the experimental results.

A Review of Material Removal Mechanism in Ultra-Precision Polishing of Optical Glass

2021 ◽  
Vol 48 (4) ◽  
pp. 0401014
Author(s):  
蒋小为 Jiang Xiaowei ◽  
龙兴武 Long Xingwu ◽  
谭中奇 Tan Zhongqi
Keyword(s):  
Material Removal ◽  
Optical Glass ◽  
Removal Mechanism ◽  
Material Removal Mechanism ◽  
Ultra Precision

Migrating magnetorheological finishing process plans between different optical materials

2020 ◽  
Vol 59 (01) ◽  
pp. 1
Author(s):  
Hang Yang ◽  
Changguo Yan ◽  
Yunfei Zhang ◽  
Wen Huang
Keyword(s):  
Optical Materials ◽  
Magnetorheological Finishing ◽  
Process Plans ◽  
Finishing Process

Material Removal Mechanism in Vibration-Assisted Magnetic Abrasive Finishing

2008 ◽  
Vol 53-54 ◽  
pp. 57-63 ◽  
Author(s):  
Shao Hui Yin ◽  
Yu Wang ◽  
Takeo Shinmura ◽  
Yong Jian Zhu ◽  
Feng Jun Chen
Keyword(s):  
Material Removal ◽  
Removal Rate ◽  
Removal Mechanism ◽  
Material Removal Mechanism ◽  
Magnetic Abrasive Finishing ◽  
Finishing Process ◽  
Abrasive Finishing ◽  
Vibration Assistance ◽  
Series Of Experiments ◽  
Working Distance

This paper proposed a viewpoint to explain why vibration assistance may increase material removal rate (MRR) in vibration-assisted magnetic abrasive finishing process. A series of experiments on vibration-assisted finishing have been carried out. On the basis of these experiments, the finishing characteristics are represented summarily. It was shown that the increase in material rate is mainly due to an increase in material removal per unit working distance.

Material Removal Mechanism in Vibration-Assisted Finishing

2009 ◽  
Vol 69-70 ◽  
pp. 158-162 ◽  
Author(s):  
Yu Wang ◽  
Shao Hui Yin ◽  
Takeo Shinmura
Keyword(s):  
Material Removal Rate ◽  
Vibration Frequency ◽  
Material Removal ◽  
Removal Rate ◽  
Removal Mechanism ◽  
Material Removal Mechanism ◽  
Finishing Process ◽  
Vibration Assistance

In this paper, it is explored the material removal mechanism in vibration-assisted finishing process. On the basis of some experiments, the finishing characteristics are represented summarily. Though the analysis, it is shown that the vibration assistance method may increase cutting distance and speed of abrasive and material removal in per unit finishing distance which is affected by vibration frequency and amplitude, in-process abrasives behavior. What more, the increase in material removal rate is mainly due to an increase in material removal per unit finishing distance which is affected by the effects of abrasives cross-cutting.

Optics Manufacturing Using Magnetorheological Finishing

2008 ◽  
Vol 375-376 ◽  
pp. 274-277
Author(s):  
Gui Wen Kang ◽  
Fei Hu Zhang
Keyword(s):  
Dwell Time ◽  
Time Algorithm ◽  
Subsurface Damage ◽  
Numerical Control ◽  
Surface Shape ◽  
Magnetorheological Finishing ◽  
High Quality ◽  
Finishing Process ◽  
Surface Figure

Magnetorheological finishing (MRF) is a novel precision optical machining technology. Owing to its flexible finishing process, MRF can eliminate subsurface damage, smooth rms micro roughness and correct surface figure errors. The finishing process can be easily controlled by a computer. Through proper designing of numerical control, sphere and asphere optics can be machined by magnetorheological finishing with high quality. Optical sphere is machined using dwell time algorithm and surface shape 2 pt. PV has been improved from 0.17um to 0.07um.

Mechanism of material removal in ball end magnetorheological finishing process

Wear ◽  
2013 ◽  
Vol 302 (1-2) ◽  
pp. 1180-1191 ◽  
Author(s):  
Anant Kumar Singh ◽  
Sunil Jha ◽  
Pulak M. Pandey
Keyword(s):  
Material Removal ◽  
Magnetorheological Finishing ◽  
Finishing Process

Discussion on Laser Cleaning of Optical Surface Machined by Magnetorheological Finishing

2010 ◽  
Vol 135 ◽  
pp. 409-412 ◽  
Author(s):  
Gui Wen Kang
Keyword(s):  
Laser Cleaning ◽  
Numerical Control ◽  
Flowing Water ◽  
Optical Surface ◽  
Working Ability ◽  
Magnetorheological Finishing ◽  
High Quality ◽  
Finishing Process ◽  
Optical Manufacturing ◽  
Surface Figure

Magnetorheological finishing (MRF) is a novel precision optical machining technology. Owing to its flexible finishing process, MRF can eliminate subsurface damage, smooth rms micro roughness and correct surface figure errors. Through proper designing of numerical control, sphere and asphere optics can be machined by magnetorheological finishing with high quality. Owing to it’s excellence in optical manufacturing, MRF has gained more and more application in industry. Under most conditions the optical surface after MRF would have certain contaminant particles and this would affect its working ability in future use. Formerly the polished workpiece is cleaned by flowing water or ultrasonic cleaning and the contaminat particles couldn’t be totally removed. Laser cleaning is brought forward in this paper and good results could be anticipated.

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