Calibration and prediction of removal function in magnetorheological finishing

Dai, Yifan; Song, Ci; Peng, Xiaoqiang; Shi, Feng

doi:10.1364/ao.49.000298

Cited by 36 publications

(10 citation statements)

References 12 publications

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“…Scientific aspects of these magnetically assisted finishing technologies are scarcely covered [9,10]. Some attempts were made to build empirical models which correlate the removal rate in MRF with glass properties, experimentally measured surface pressure and drag force [11] or a combination of the above [12][13][14][15][16].…”

Section: Osamentioning

confidence: 99%

Material removal in magnetorheological finishing of optics

2011

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A concept of material removal based on the principle of conservation of particles momentum in a binary suspension is applied to analyze material removal in magnetorheological finishing and magnetorheological jet processes widely used in precision optics fabrication. According to this concept, a load for surface indentation by abrasive particles is provided at their interaction near the wall with heavier basic (magnetic) particles, which fluctuate (due to collision) in the shear flow of concentrated suspension. The model is in good qualitative and quantitative agreement with experimental results.

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Section: Osamentioning

confidence: 99%

Material removal in magnetorheological finishing of optics

2011

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“…Deterministic electroplating repair is a new and practical method for rapidly repairing the attrited parts, which is based on the deterministic surfacing theory [1] and electroplating technique [2,3]. Schematic diagram of the deterministic electroplating repair system is shown in the figure 1.…”

Section: Introductionmentioning

confidence: 99%

Influences of the current density on the performances of the chrome-plated layer in deterministic electroplating repair

Xia¹,

Shen²,

Yang³

et al. 2018

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Deterministic electroplating repair is a novel method for rapidly repairing the attrited parts. By the qualitative contrast and quantitative comparison, influences of the current density on performances of the chrome-plated layer were concluded in this study. The chrome-plated layers were fabricated under different current densities when the other parameters were kept constant. Hardnesses, thicknesses and components, surface morphologies and roughnesses, and wearability of the chrome-plated layers were detected by the Vickers hardness tester, scanning electron microscope / energy dispersive X-ray detector, digital microscope in the 3D imaging mode, and the ball-milling instrument with profilograph, respectively. In order to scientifically evaluate each factor, the experimental data was normalized. A comprehensive evaluation model was founded to quantitative analyse influence of the current density based on analytic hierarchy process method and the weighted evaluation method. The calculated comprehensive evaluation indexes corresponding to current density of 40 IntroductionDeterministic electroplating repair is a new and practical method for rapidly repairing the attrited parts, which is based on the deterministic surfacing theory [1] and electroplating technique [2,3]. Schematic diagram of the deterministic electroplating repair system is shown in the figure 1. Original profile of the attrited part is obtained by three-coordinate measuring machine. Through subtracting the expected shape from the original profile, theoretical distribution of the optimal deposition layer is calculated. The electroplating solution is sucked from the container to the nozzle head by the peristaltic pump and is absorbed back to the container by the atmospheric pressure generated from the vacuum ejector. Through controlling concentration of the electroplating solution and the current density between the anode and the attrited part, shape of the deposition function and its efficiency can be kept steady. Distribution of the dwelling time can be achieved by the Fourier transform and convolution operation based on the theoretical distribution of the optimal deposition layer and the deposition function [4]. By controlling movement of the nozzle head which is installed on the three-dimension (3D) motion platform according to distribution of dwelling time, the attrited part can be deterministically repaired. Different from electro-brush plating [5] and electro-bath plating [6], parameters in the deterministic electroplating repair should be accurately controlled, because stability and veracity of the deposition

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“…Cheng et al [9] studied the polishing of optical aspheric components with MRF using a 2-axis, wheel-shaped tool supporting dual magnetic fields. Dai et al [10] established a calibrated and predictive model of the removal function based on an analysis of the MRF process. Sidpara and Jain [11] measured the normal and tangential forces in an MRF-based finishing process.…”

Section: Introductionmentioning

confidence: 99%

Fundamental performance of Magnetic Compound Fluid (MCF) wheel in ultra-fine surface finishing of optical glass

Wang

et al. 2013

International Journal of Machine Tools and Manufacture

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Calibration and prediction of removal function in magnetorheological finishing

Cited by 36 publications

References 12 publications

Material removal in magnetorheological finishing of optics

Material removal in magnetorheological finishing of optics

Influences of the current density on the performances of the chrome-plated layer in deterministic electroplating repair

Fundamental performance of Magnetic Compound Fluid (MCF) wheel in ultra-fine surface finishing of optical glass

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