Study on Compound Machining of Polyurethane Polishing Pad and Cluster Abrasive Brush Based on MR Effect

Li, Min; Yan, Qiu Sheng; Lu, Jianjiang; Chai, Jing Fu

doi:10.4028/www.scientific.net/kem.487.238

Cited by 3 publications

(1 citation statement)

References 4 publications

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“…A regional ultra-smooth planarization surface of STO substrate where a surface roughness of Ra being 3.8 nm (Mahr), rms 0.973 nm (Veeco interferometer) was obtained. Li et al [22] used a compound machining method to process STO ceramic substrates, and then studied the effects that compound machining had on the intensity of the magnetic field, the processing time, and the rotating speed of the lapping plate and the lapping pressure. Their results showed that workpieces processed by compound machining are smoother than lapping based on the cluster MR effect and polishing with a polyurethane pad, although more material can be removed than by polishing with a polyurethane pad.…”

Section: Introductionmentioning

confidence: 99%

An experimental analysis of strontium titanate ceramic substrates polished by magnetorheological finishing with dynamic magnetic fields formed by rotating magnetic poles

Pan

Yan

et al. 2017

Smart Mater. Struct.

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Strontium titanate (SrTiO3, STO) ceramic substrate is an incipient ferroelectric material with a perovskite structure and which has a wide range of applications in the fields of microwave, millimetre wave, and optic fibre. This paper reports on a system of experiments carried out on STO substrates using a new magnetorheological (MR) finishing process where dynamic magnetic fields are formed by magnetic poles rotate. The results show that a circular ring shaped polishing belt with a stability evaluation zone appears on the surface after being polished by MR finishing with a single-point dynamic magnetic field. The dynamic magnetic fields are stronger when the revolutions of magnetic pole increase and eccentricity of pole enlarge, with the surface finish is smoother and more material is removed. The optimum machining times, machining gap, oscillation distance, eccentricity of pole, revolutions of the workpiece and magnetic pole are 60 min, 0.8 mm, 0 mm, 7 mm, and 350 r min−1 and 90 r min−1, respectively, and the best MR fluid consists of 6 wt% of diamond abrasives in W1 particle size and 18 wt% of carbonyl iron powder in W3.5 particle size. A surface roughness of Ra and a material removal rate of 8 nm and 0.154 μm min−1 can be obtained in these optimum process conditions. Finally, the polishing mechanism for dynamic magnetic fields and the mechanism for removing material from STO ceramic substrates are discussed in detail.

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Section: Introductionmentioning

confidence: 99%

An experimental analysis of strontium titanate ceramic substrates polished by magnetorheological finishing with dynamic magnetic fields formed by rotating magnetic poles

Pan

Yan

et al. 2017

Smart Mater. Struct.

View full text Add to dashboard Cite

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Parametric investigation into accommodate-sinking effect of cluster magnetorheological effect pad

Bai

Yan

et al. 2014

Int J Adv Manuf Technol

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Review on Surface Polishing Methods of Optical Parts

Xie

Pan

et al. 2022

Advances in Materials Science and Engineering

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With the extensive application of optical parts in many high-tech fields such as high-power laser, space optics, and aerospace, the requirements for the surface quality of optical parts are also increasing, which requires not only high surface qualities but also low defects including low subsurface damage and strict wavefront errors. As an essential link in the precision and ultraprecision optical manufacturing, various surface polishing methods and techniques have always attracted researchers’ continuous study and exploration. Considering the development of optical part surface polishing technology in recent years, this study analyzes the principle and development process of typical processing methods represented by each kind of polishing technology, expounds the specific research progress of optical part surface polishing technology, including the iterative renewal of traditional technologies and the research development of new technologies, and gives examples for typical applications. Finally, the development trend of optical part surface polishing technology is prospected, which provides a reference for follow-up intensive research in optical manufacturing.

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Study on Compound Machining of Polyurethane Polishing Pad and Cluster Abrasive Brush Based on MR Effect

Cited by 3 publications

References 4 publications

An experimental analysis of strontium titanate ceramic substrates polished by magnetorheological finishing with dynamic magnetic fields formed by rotating magnetic poles

An experimental analysis of strontium titanate ceramic substrates polished by magnetorheological finishing with dynamic magnetic fields formed by rotating magnetic poles

Parametric investigation into accommodate-sinking effect of cluster magnetorheological effect pad

Review on Surface Polishing Methods of Optical Parts

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