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Magnetic field-assisted finishing : ウィキペディア英語版 | Magnetic field-assisted finishing
Magnetic field-assisted finishing, sometimes called magnetic abrasive finishing, is a surface finishing technique in which a magnetic field is used to force abrasive particles against the target surface.〔D.K. Singh, V.K. Jain, V. Raghuram (2003) (Superfinishing of alloy steel using magnetic abrasive finishing process ) ''Proceedings of the 18th Annual ASPE Meeting''.〕 As such, finishing of conventionally inaccessible surfaces (e.g., the inside surface of a long curved pipe) is possible. Magnetic field-assisted finishing (MAF) processes have been developed for a wide variety of applications including the manufacturing of medical components, fluid systems, optics, dies and molds, electronic components, microelectromechanical systems, and mechanical components. ==History of MAF==
Initially developed as a machining process in the US in the 1930s, with the first patent in the 1940s. University research in the Soviet Union, Bulgaria, Germany, Poland, and US began in the 1960s with practical usage appearing by the 1980s and 1990s. The growth of the semiconductor, aerospace, and optics industries have resulted in the continued development of better methods for attaining high form accuracy and surface integrity.〔Yamaguchi H, Sato T, “Polishing and Magnetic Field-Assisted Finishing” Intelligent Energy Field Manufacturing Interdisciplinary Process Innovations 2012〕
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