کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10673618 1010258 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ultra-precision polishing of electroless nickel molding dies for shorter wavelength applications
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
Ultra-precision polishing of electroless nickel molding dies for shorter wavelength applications
چکیده انگلیسی
Electroless nickel is one of the best materials for making optical molding dies, because of its machinability with both single-point diamond turning and polishing, as well as its suitable hardness and durability. This paper deals with the ultra-precision polishing of aspheric molding dies for next-generation hard X-ray telescope mirrors, which require a super smooth surface with a roughness below 0.3 nm root-mean-square (rms). The material was machined using various methods, and a surface roughness of 0.23 nm rms was obtained on aspheric molding dies of 300 mm in diameter. A surface roughness of 0.16 nm rms was achieved on platinum/carbon multilayer mirrors, replicated from plano dies.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: CIRP Annals - Volume 57, Issue 1, 2008, Pages 337-340
نویسندگان
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