Formation and evolution behavior of comet-tail defects in magnetorheological finishing

Yuan, Shenghao; Zhang, Yunfei; Yu, Jiaxin; Li, Kailong; Chao, Wang; Tian, Dong; Hai, Kuo; Huang, Wen

doi:10.37188/ope.2020.0499

Cited by 6 publications

(1 citation statement)

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“…Magnetorheological finishing (MRF), a new and representative advanced optical manufacturing method [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ], has broad development prospects due to its advantages of strong stability in removal, high surface machining accuracy, and good surface and sub-surface quality [ 8 , 9 , 10 ]. It has been widely used in the processing of high-precision optical components [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

A Method for Optimizing the Dwell Time of Optical Components in Magnetorheological Finishing Based on Particle Swarm Optimization

Gao,

Fan,

Wang

et al. 2023

Micromachines

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In this paper, a dwell time optimization method based on the particle swarm optimization algorithm is proposed according to the pulse iteration principle in order to achieve high-precision magnetorheological finishing of optical components. The dwell time optimization method explores the optimal solution in the solution space by comparing the accuracy value of the final surface with the set value. In this way, the dwell time optimization method was able to achieve global optimization of the overall dwell times and each dwell time point, ultimately realizing the high-precision processing of a surface. Through the simulation of two Φ156 mm asphaltic mirrors (1# and 2#), the root-mean-square (RMS) and peak–valley (PV) values of 1# converged from the initial values of 169.164 nm and 1161.69 nm to 24.79 nm and 911.53 nm. Similarly, the RMS and PV values of 2# converged from the initial values of 187.27 nm and 1694.05 nm to 31.76 nm and 1045.61 nm. The simulation results showed that compared with the general pulse iteration method, the proposed algorithm could obtain a more accurate dwell time distribution of each point under the condition of almost the same processing time, subsequently acquiring a better convergence surface and reducing mid-spatial error. Finally, the accuracy of the optimization algorithm was verified through experiments. The experimental results demonstrated that the optimized algorithm could be used to perform high-precision surface machining. Overall, this optimization method provides a solution for dwell time calculation in the process of the magnetorheological finishing of optical components.

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Section: Introductionmentioning

confidence: 99%

A Method for Optimizing the Dwell Time of Optical Components in Magnetorheological Finishing Based on Particle Swarm Optimization

Gao,

Fan,

Wang

et al. 2023

Micromachines

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Exploration study of nickel slag/modified slag in the ultra-precision polishing of magnetic compound fluid

Wang,

Yu,

Zhang

et al. 2024

AIP Advances

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Nickel slag is the solid waste obtained from the nickel smelting process. Based on the magnetic elements in nickel slag, it is a potential ingredient that could be used in magnetic compound fluid (MCF) polishing. This work discusses polishing in MCF using nickel slag and modified slag. Investigations are conducted into how MCF is affected by the amount of modified slag and nickel slag present during polishing. The connections between shear force, position, material removal rate, morphological characteristics, and polishing quality are covered. Nickel slag is mixed with CaO, the alkalinity is adjusted, and the mixture is heated to 1500 °C to fully melt and oxidize it. The resulting product is modified slag. The morphological changes in MCF slurry before and after polishing were examined using an industrial camera, and the effect of different MCF slurry components on polishing performance was analyzed throughout the polishing process. In addition, the positioning of modified slag within the magnetic cluster formed during the polishing process was determined through a scanning electron microscope and by energy dispersive x-ray spectroscopy mapping of MCF slurry. The aforementioned research establishes the polishing mechanism for nickel slag and modified slag. The experimental results indicate that the polishing effect of the experimental group with added modified slag is better than that of added nickel slag. Under the same conditions, the surface roughness was reduced by 60% when modified slag was used instead of nickel slag. It was found that the optimal process is where the modified slag content is 10%, where the material removal rate is 1.207 × 108µm3/min and the surface roughness decrease rate is 95.482%. The polishing shear force is around 2.7N, which is twice as much as that of nickel slag.

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Optimization of MRP quartz glass process parameters based on BP-PSO

Yang,

Lu,

Lin

et al. 2024

Materials and Manufacturing Processes

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Formation and evolution behavior of comet-tail defects in magnetorheological finishing

Cited by 6 publications

References 0 publications

A Method for Optimizing the Dwell Time of Optical Components in Magnetorheological Finishing Based on Particle Swarm Optimization

A Method for Optimizing the Dwell Time of Optical Components in Magnetorheological Finishing Based on Particle Swarm Optimization

Exploration study of nickel slag/modified slag in the ultra-precision polishing of magnetic compound fluid

Optimization of MRP quartz glass process parameters based on BP-PSO

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