International Journal of Automation Technology
Online ISSN : 1883-8022
Print ISSN : 1881-7629
ISSN-L : 1881-7629
Regular Papers
Ultraprecision Cutting of Nickel Plated Mold for X-Ray Mirror
Hirofumi SuzukiMutsumi OkadaYuki MasudaYoshiharu NambaKatsuhiro MiuraShinya MoritaYutaka Yamagata
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JOURNAL OPEN ACCESS

2016 Volume 10 Issue 4 Pages 624-631

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Abstract

To improve the machining preciseness of X-ray telescope mirrors for astronomical use, the molds of electroless nickel and electro nickel are diamond-turned, and the tool wear and machining accuracy are then quantitatively evaluated. The machined surface roughness is measured and discussed in terms of the effects of cutting conditions on the resulting quality. Finally, the actual nickel-plated molds of X-ray mirrors are test cut, and their form accuracy and surface roughness are measured and evaluated. These experiments reveal that a surface roughness of 0.5 nm Ra and a form accuracy of 0.1 μm P-V can be obtained under the optimized cutting conditions.

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© 2016 Fuji Technology Press Ltd.

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