Polishing characteristics and mechanism in magnetorheological planarization using a permanent magnetic yoke with translational movement

Wang, Yongqiang; Yin, Shu; Huang, Han

doi:10.1016/j.precisioneng.2015.06.014

Cited by 30 publications

(3 citation statements)

References 29 publications

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“…Furthermore, Li et al [ 28 ] established the MRR for a shear thickening polishing (STP) based on the Preston equation, fluid dynamics and shear thickening mechanism. Wang et al [ 29 ] constructed the MRR model by using the tangential force and normal force on the workpiece and concluded that the removal effect during the MRP process was more dominant by the tangential force on the workpiece.…”

Section: Introductionmentioning

confidence: 99%

Study on Material Removal Model by Reciprocating Magnetorheological Polishing

Wang¹,

Xiu

Sun

et al. 2021

Micromachines

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In this study, a new reciprocating magnetorheological polishing (RMRP) method for a flat workpiece was proposed. Based on the RMRP principle and Preston equation, the material removal rate (MRR) model of the RMRP as well as its normal polishing pressure model was established. On this basis, the effects of different technological parameters including workpiece rotation speed, eccentric wheel rotation speed and eccentricity on the MRR of the workpiece were investigated. The K9 optical flat glass was polished with the RMRP setup to verify the MRR model. The experimental results showed that the effect of workpiece rotation speed on the MRR was much greater than that of eccentric wheel rotation speed and eccentricity, and the MRR increased from 0.0115 ± 0.0012 to 0.0443 ± 0.0015 μm/min as workpiece rotation speed rose. The optimum surface roughness reduced to Ra 50.8 ± 1.2 from initial Ra 330.3 ± 1.6 nm when the technical parameters of the workpiece rotation speed of 300 rpm, the eccentric wheel rotation speed of 20 rpm and the eccentricity of 0.02 m were applied. The average relative errors between the theoretical and experimental values were 16.77%, 10.59% and 7.38%, respectively, according to the effects of workpiece rotation speed, eccentric wheel rotation speed and eccentricity on MRR.

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Section: Introductionmentioning

confidence: 99%

Study on Material Removal Model by Reciprocating Magnetorheological Polishing

Wang¹,

Xiu

Sun

et al. 2021

Micromachines

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“…Friction induced temperature generation at the cutting zone also affects the surface roughness 17) . Lowering surface roughness or enhancing surface quality had been a prime aim of many researchers [18][19][20][21][22] . These difficulties serve as a motivation to do more research on the micromilling process and enhance it, specifically on its advanced application and machining of difficult-to-cut materials.…”

Section: Introductionmentioning

confidence: 99%

Recent Study on Hard to Machine Material – Micromilling process

Rosli¹,

Jamaludin²,

Razali³

2021

Evergreen

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This paper presents an overview of the modern advancement of micromilling as pertained to the machining process from recent research and advancement perspective. The review starts by displaying the characteristics and micromilling contributions background, and later sets up the reader to difficult-to-cut materials. However, the fabricating process usually becomes complicated owing to these material's unique metallurgical properties. This paper brings to focus the micromilling of difficult-to-cut materials, especially materials that are currently the highlights of various industries. The discussion of research and attributes of difficult-to-cut materials are covered in further detail, which serves with opportunities for future developments.

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“…Continuous efforts have been made on the MRF process, but most investigations focused on the optics materials [14][15][16][17]. The flatness has been improved largely with the optimization of the MRF process on the workpiece with strong stiffness, such as potassium dihydrogen phosphate (KDP) crystal, quartz glass and so on [18][19][20]. Furthermore, some models have been established to predict the material removal rate on the optical component surface [21,22].…”

Section: Introductionmentioning

confidence: 99%

Investigation on Magnetorheological Finishing of thin Copper Substrate

Pan

Kang

Zhang

et al. 2020

Preprint

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Thin copper substrates in precision physical experiments are commonly machined by double-sided lapping to obtain high flatness. However, the flatness is limited by the accuracy of lapping plate, process vibration and so on in double-sided lapping process. Hence, magnetorheological finishing (MRF) with its good performance on profile modification is employed to improve the flatness. Nevertheless, thin copper substrates, which are sensitive to the stress, deformed easily with uneven material removal on the surface. In this paper, MRF is conducted on machining thin copper substrate for the first time considering deformation induced by stress. A finite element model is established to evaluate the deformation by residual stress, and the results show that the deformation tends to be more serious with the increase of the material removal. According to the simulation results, the material removal is optimized considering both deformation and efficiency, and a series of experiments are conducted on a Φ100×2.8 mm workpiece to verify the simulation results. The experimental results show that the flatness is further improved from peak to valley (PV) 6.6 μm to PV 2.3 μm with optimized processing parameters. Hence, the feasibility of magnetorheological finishing on thin copper substrate is demonstrated.

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Polishing characteristics and mechanism in magnetorheological planarization using a permanent magnetic yoke with translational movement

Cited by 30 publications

References 29 publications

Study on Material Removal Model by Reciprocating Magnetorheological Polishing

Study on Material Removal Model by Reciprocating Magnetorheological Polishing

Recent Study on Hard to Machine Material – Micromilling process

Investigation on Magnetorheological Finishing of thin Copper Substrate

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