Grindstone having resinoid abrasive structure including abrasive agglomerates each provided by vitrified abrasive structure
AssigneeNoritake Co., Limited
InventorsKouji Iwai, Tsuguo Kusakabe, Yasushi Sato
Life of this patent
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Abstract
A resinoid grindstone including a main body having an abrasive structure in which abrasive agglomerates are held together by a resin bond. Each of the abrasive agglomerates includes abrasive grains which are held together by an inorganic bond. The resin bond includes a filler such that a ratio of a strength of the abrasive agglomerates to a strength of the resin bond is not higher than 1.5. A ratio of a total weight of the abrasive agglomerates included in the abrasive structure, to a weight of the abrasive structure is not lower than 10% and is not higher than 40%.
Claims13
A resinoid grindstone, comprising:
- a main body having an abrasive structure in which abrasive agglomerates are held together by a binder including a resin bond,
- wherein each of the abrasive agglomerates includes abrasive grains which are held together by an inorganic bond,
- and wherein the binder further includes a filler such that a ratio of a strength of the abrasive agglomerates to a strength of the binder is not higher than 1.5.
A gear-tooth honing stone, comprising:
- a main body having a teeth profile portion to be meshed with a gear, for honing the gear,
- wherein the main body has an abrasive structure in which abrasive agglomerates are held together by a binder including a resin bond,
- wherein each of the abrasive agglomerates includes abrasive grains which are held together by an inorganic bond,
- and wherein the binder further includes a filler such that a ratio of a strength of the abrasive agglomerates to a strength of the binder is not higher than 1.5.
A resinoid grindstone comprising:
- a main body having an abrasive structure in which abrasive agglomerates are held together by a binder including a resin bond,
- wherein each of the abrasive agglomerates includes abrasive grains which are held together by an inorganic bond,
- wherein a ration of a total weight of the abrasive agglomerates included in the abrasive structure, to a weight of the abrasive structure is not lower than 10% and is not higher than 40%,
- and wherein a ratio of a weight of the inorganic bond included in each of the abrasive agglomerates, to a weight of each of the abrasive agglomerates is not higher than 40%.
A resinoid grindstone comprising:
- a main body having an abrasive structure in which abrasive agglomerates are held together by a binder including a resin bond,
- wherein each of the abrasive agglomerates includes abrasive grains which are held together by an inorganic bond,
- wherein a ratio of a total weight of the abrasive agglomerates included in the abrasive structure, to a weight of the abrasive structure is not lower than 10% and is not higher than 40%,
- and wherein the binder further includes second abrasive grains each having a size which is not smaller than a size of each of the abrasive grains as first abrasive grains included in each of the abrasive agglomerates, and which is smaller than a size of each of the abrasive agglomerates.
Dependencies are inferred from the claim text.