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Published on: September 19, 2025
Magnetorheological Finishing Technology: Research Progress in Materials, Mechanisms, Equipment, and
Lingzhi Ding1, Guangchao Song2, Guili Gao3
1School of Materials and Chemistry, University of Shanghai for Science and Technology, Shanghai 200093, China.
Micromachines
|July 28, 2026
Summary
Magnetorheological Finishing (MRF) is a flexible, controllable ultra-precision polishing technology. This review covers MRF fluid properties, material removal, equipment, hybrid methods, and applications, guiding future development.
Area of Science:
- Materials Science and Engineering
- Manufacturing Technology
- Surface Metrology
Background:
- Magnetorheological Finishing (MRF) is a key deterministic technology for ultra-precision polishing.
- It offers flexibility, controllability, and minimal subsurface damage, making it ideal for advanced manufacturing.
- MRF's potential in fields like aerospace and biomedicine necessitates a comprehensive review of its advancements.
Purpose of the Study:
- To systematically review the research progress of Magnetorheological Finishing (MRF) technology.
- To elucidate the influence of polishing fluid properties on finishing performance.
- To analyze material removal mechanisms, equipment, hybrid technologies, and future trends in MRF.
Main Methods:
- Review of literature on magnetorheological polishing fluid preparation, rheological properties, and stability.
- Analysis of macroscopic and atomic-scale material removal mechanisms and theoretical models.
- Systematic classification of MRF equipment and discussion of hybrid polishing technologies (e.g., ultrasonic, electrochemical, laser-assisted).
Main Results:
- Fluid properties significantly impact MRF performance, with nonlinear rheological models and stability optimization being crucial.
- Material removal mechanisms, from macro to atomic scales, and associated models have been developed.
- Optimization of process parameters, magnetic field configuration, and dwell time algorithms enhances machining accuracy and efficiency.
Conclusions:
- MRF technology is a promising ultra-precision polishing method with diverse applications in aerospace, biomedical, and optoelectronics.
- Current technical bottlenecks exist, but future trends point towards intelligence, greenization, and standardization.
- This review provides theoretical references and technical guidance for advancing MRF in precision manufacturing.
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