Study on shaping spherical Poly Crystalline Diamond tool by Micro-electro-Discharge Machining and micro-grinding with the tool
by Takeshi Masaki, Tsunemoto Kuriyagawa, Jiwang Yan, Nobuhito Yoshihara
International Journal of Surface Science and Engineering (IJSURFSE), Vol. 1, No. 4, 2007

Abstract: Micro-electro-Discharge Machining (Micro-EDM) for shaping of a spherical tool made of Poly Crystalline Diamond (PCD) has been developed for the purpose of enabling a grinding process of a micro-free form surface on hard and brittle materials. Using this spherical PCD tool as a grinding tool, the surface roughness of a minute flat plane (90 × 70 µm), which was ground into tungsten carbide, has 28 nm Rz and 5 nm Ra. This paper describes the capabilities of spherical PCD tool grinding with the following results.

Online publication date: Tue, 15-Jan-2008

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