A Truing Technique of Flattening Diamond Grains for Fabricating Microstructures with Fine Surfaces
A truing technique that can be used to shape the tip of an electroformed diamond tool into a hemisphere and flatten diamond grains on the tool working surface at the same level as the bond face was developed. A polycrystalline diamond disk whose top surface roughened by electrical discharge machining was partially flattened by grinding was used as a truer. Diamond grains on the tool working surface were successfully flattened along the hemispherical tool profile when the grains mesh size of #1000 was employed. In addition, a grinding test using glasslike carbon as a work material revealed that a surface roughness of less than 50 nm Rz could be obtained in both cases when moving the tool on contour and scanning paths.
Tsunemoto Kuriyagawa, Libo Zhou, Jiwang Yan and Nobuhito Yoshihara
T. Harada and T. Semba, "A Truing Technique of Flattening Diamond Grains for Fabricating Microstructures with Fine Surfaces", Key Engineering Materials, Vols. 389-390, pp. 350-355, 2009