Vitrified grinding stone and method of manufacturing the same
AssigneesBosch Corporation, Noritake Co., Limited, Noritake Super Abrasive Co., Ltd.
InventorsTakayuki Yui, Osamu Kubota, Hideo Furukawa, Masatoshi Kishimoto, Naoyuki Ukai
Life of this patent
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Abstract
A vitrified grinding stone includes an abrasive grain and a vitrified binder. The vitrified grinding stone has a porosity, a degree of concentration of abrasive grains and an abrasive grain diameter according to a preset processing efficiency and a processing precision of grinding.
Claims28
A vitrified grinding stone comprising:
- an abrasive grain;
- and
- a vitrified binder,
- wherein the vitrified grinding stone has a porosity, a degree of concentration of abrasive grains and an abrasive grain diameter according to a preset processing efficiency and a processing precision of grinding.
A vitrified grinding stone comprising:
- an abrasive grain;
- and
- a vitrified binder,
- wherein a ratio of pores having a size 1 to 3 times an average grain diameter of the abrasive grain in a volume of whole pores ranges from 20 to 70 volume percent.
A vitrified grinding stone comprising:
- an abrasive grain;
- and
- a vitrified binder,
- wherein a ratio of pores having a size 0.1 to 1 time an average grain diameter of the abrasive grain in a volume of whole pores ranges from 30 to 70 volume percent.
A method of manufacturing a vitrified grinding stone comprising an abrasive grain and a vitrified binder, the method comprising:
- setting a processing efficiency and a processing precision of grinding;
- and
- setting a porosity, a degree of concentration of abrasive grains and an abrasive grain diameter according to the processing efficiency and the processing precision.
Dependencies are inferred from the claim text.