| 摘要 |
PURPOSE: A cutting grindstone is provided to moderate an impact force of hard brittle materials by a lubricating property and the heat resistance of diamond abrasive grains doped with boron. CONSTITUTION: A cutting grindstone(50) is composed of diamond abrasive grains doped with boron. The cutting grindstone is composed of a electro-formed grindstone and diamond abrasive grains doped with boron is fixed by a nickel plating so that the electro-formed grindstone. The cutting grindstone is composed of a sintered grindstone and diamond abrasive grains doped with boron are kneaded and sintered to one of a resin-bond, a vitrified-bond, and a metal-bond so that a sintered grindstone is formed. |
