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Precision optics fabrication using magnetorheological finishing
Optical Fabrication and Testing, 1998In general terms, the magnetorheological finishing (MRF)1 process occurs as follows (refer to Fig.1). A workpiece is installed at some fixed distance from a moving wall, so that the workpiece surface and the wall form a converging gap. An electromagnet, placed below the moving wall, generates a non-uniform magnetic field in the vicinity of the gap. The
Don Golini +4 more
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Continuous phase plate polishing using magnetorheological finishing
SPIE Proceedings, 2008Magnetorheological Finishing (MRF) techniques and tools have been developed to imprint complex, continuously varying topographical structures onto 430 x 430 millimeter optical surfaces. These optics, known as continuous phase plates (CPPs) are important for kilojoule- and megajoule-class laser systems requiring precise control of beam-shape, energy
M. Tricard, P. Dumas, J. Menapace
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Aspheric Surface Generation Requirements for Magnetorheological Finishing
Extreme Ultraviolet Lithography (TOPS), 1996A manufacturing system for grinding and polishing aspheres is under development at the Center for Optics Manufacturing (COM). Polishing is accomplished using the magnetorheological finishing (MRF) technique. MRF utilizes the unique properties of MR fluids to achieve high polishing removal rates.
Don Golini +4 more
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Magnetorheological Finishing of Tungsten Carbide Mold Materials
International Optical Design Conference and Optical Fabrication and Testing, 2010Recent MRF polishing results of Tungsten Carbide (WC) mold materials will be presented. Excellent roughness values are reported, particularly on fine-grained TSJ02 WC, which led to sub-nanometer Ra values.
Christopher Hall +6 more
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Aspheric Surface Generation Requirements in Magnetorheological Finishing
Optical Fabrication and Testing, 1996A manufacturing system for grinding and polishing aspheres is under development. Polishing is accomplished using the magnetorheological finishing (MRF) technique. MRF utilizes the unique properties of MR fluids to achieve high polishing removal rates. The fluid is carried through a magnetic field, in which its viscosity is increased by several orders ...
Don Golini +7 more
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Integrative oncology: Addressing the global challenges of cancer prevention and treatment
Ca-A Cancer Journal for Clinicians, 2022Jun J Mao,, Msce +2 more
exaly
Study on Magnetorheological Surface Finishing
Key Engineering Materials, 2004Huan Wu Sun, Shu Cai Yang, W.H. Li
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