The Roles of Magnetorheological Fluid in Modern Precision Machining Field: A Review

He, Lu; Hua, Dezheng; Wang, Baiyi; Yang, Chao; Hnydiuk-Stefan, Anna; Królczyk, Grzegorz; Liu, Xinhua; Li, Zhixiong

doi:10.3389/fmats.2021.678882

Cited by 21 publications

(9 citation statements)

References 66 publications

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“…This stability minimizes the deformation of the tool influence function (TIF) during the polishing process, ensuring stable and precise correction of surface residual errors through MRF process. [3] While the advantage of minimizing TIF deformation during the process is evident, there are still limitations associated with the size of TIF, as observed in processes such as the computer-controlled optical surfacing (CCOS). [4] Generally, specific TIFs can effectively control features larger than TIF size, but smaller features remain challenging to control effectively.…”

Section: Introductionmentioning

confidence: 99%

Analysis of low-spatial frequency response in magnetorheological finishing process

Jeon,

Yeo,

Choi

et al. 2023

Optifab 2023

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In this study, our aim is to improve the efficiency of the optical manufacturing process employing magnetorheological finishing (MRF) by quantitatively analyzing the MRF response characteristics that vary according to the type and size of low-spatial frequency. Dimension-variable patterns were devised based on the dimension of the tool influence function (TIF), consisting of two types: a width-variable pattern and a height-variable pattern. These dimension-variable patterns were utilized as input data for the MRF corrective polishing system. The resulting residual figure error of the patterns generated through the MRF corrective polishing system was calculated and expressed as output data. Furthermore, to quantify the MRF response characteristics for low-spatial frequency, the relative error is presented by comparing the input data and output data. The results indicate that the MRF polishing performance for low-spatial frequency is influenced by both the type and size of the frequency, and these trends can assist in devising sophisticated and efficient MRF strategies for manufacturing ultra-precision optical surfaces.

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Section: Introductionmentioning

confidence: 99%

Analysis of low-spatial frequency response in magnetorheological finishing process

Jeon,

Yeo,

Choi

et al. 2023

Optifab 2023

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“…Various research articles and studies that take advantage of the potential of MRF continue to be carried out, for example, with regard to shock absorbers [7,[10][11][12][13], brakes [14][15][16], valves [12,[17][18][19], polishing [20][21][22], haptic devices [23][24][25], mounts [26][27][28], and sound propagation [29,30].…”

Section: Introductionmentioning

confidence: 99%

Effect of Time and Frequency of Magnetic Field Application on MRF Pressure Performance

et al. 2022

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This research was conducted to determine the effect of the time and frequency of magnetic field application on MRF pressure performance. It was carried out by placing magnetorheological fluid (MRF) in a U-shaped, glass tube and then repeatedly applying a magnetic field to it for a certain time period with a particular frequency set by the generator frequency. The length of the application period of the magnetic field, the frequency of the application of the magnetic field, and the magnitude of changes in fluid pressure that occurred and changes in pressure in the MRF were recorded with a data logger for a specific time, which was 60 s. From the field tests that were carried out, it was found that during the application of a continuous magnetic field, there was pressure on the MRF until it reached the maximum pressure; then, there was a gradual decrease in pressure when the magnetic field was turned off, but the pressure was intense. It was shown that the pressure decreased rapidly as the magnetism disappeared, even causing the pressure to drop below the initial pressure, which, in turn, gradually rose again toward the equilibrium pressure. Meanwhile, during the repeated application of a magnetic field, it appeared that the MRF effectively produced pressure in response to the presence of a magnetic field up to a frequency of 5 Hz. The higher the applied magnetic field frequency, the smaller the pressure change that occurred. Starting at a frequency of 10 Hz, the application of a magnetic field produced more minor pressure changes, and the resulting pressure continued to decrease as the liquid level decreased toward the initial equilibrium position.

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“…The technology adopts macro-drive and micro-drive dual-drives, in which the macro-drive provides large-stroke motion for the system, and the micro-drive compensates for the motion error of the macro-drive, realizing large-stroke and high-precision mechanical motion. Since the concept was put forward, it has become one of the hot spots in the field of precision machinery, and it is currently widely used in high-tech fields, such as the aerospace, biomedicine and military industries [ 9 , 10 , 11 , 12 ].…”

Section: Introductionmentioning

confidence: 99%

Research on Continuous Error Compensation of a Sub-Arc-Second Macro/Micro Dual-Drive Rotary System

Zhang

Huang

et al. 2022

Micromachines

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In this paper, a sub-arc-second macro/micro dual-drive rotary system is designed, and the continuous compensation of the system error and its experimental research are completed. First, the macro-drive system is driven by a direct-drive motor, and the micro-drive system uses a piezoelectric ceramic to drive the micro-drive rotary mechanism; the system uses a micro-drive system to compensate the motion error of the macro-drive system, and uses circular grating to feedback the displacement of the macro/micro total output turntable to form a macro/micro dual-drive closed-loop control system. Second, based on the establishment of the system error model, the design of the system’s continuous error compensation scheme is completed. Finally, the positioning accuracy testing of the system, direct error compensation of the macro-drive, manual error compensation of the macro-drive, error compensation performance of the micro-drive part and macro/micro compensation of the system are carried out in the study. The results show that the repeated positioning error and the positioning error of the system are reduced by 78.8% and 95.2%, respectively, after macro/micro compensation. The correctness and effectiveness of the designed system design, error compensation and control method are verified through performance tests, and its positioning accuracy is verified to the sub-arc-second (0.1 arcsecond) level. The research in this paper has important reference value for the development of ultra-precision macro/micro dual-drive technology.

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The Roles of Magnetorheological Fluid in Modern Precision Machining Field: A Review

Cited by 21 publications

References 66 publications

Analysis of low-spatial frequency response in magnetorheological finishing process

Analysis of low-spatial frequency response in magnetorheological finishing process

Effect of Time and Frequency of Magnetic Field Application on MRF Pressure Performance

Research on Continuous Error Compensation of a Sub-Arc-Second Macro/Micro Dual-Drive Rotary System

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