PURPOSE: To comparatively easily obtain a grindstone equipped with an extremely strong abrasive grains holding power and having a long service life proper for the grinding of a high accuracy, by providing a diamond abrasive grain or CBN abrasive grain having a preset abrasive grains interval and concentricity and made with the vaper phase development on the surface of the base material made of a metal or ceramics.
CONSTITUTION: Either one kind of film among the nitride film, carbide film and oxide film as for an intermediate layer 2 is formed on the surface of the base material 1 composed of a metal or ceramics. The intermediate layer 2 excepting the place where a diamond or CBN is desired to be formed is re moved by using a photofabrication method, then. Thereafter a diamond grain or CBN grain 5 is developed with a vapor phase at the place where the interme diate layer 2 is removed under a reduced pressure.
| JP2003305655 | CUTTING WHEEL |
SUMIDA YUICHI
SASAMOTO MASAMI
