Dressable bonded abrasive article
AssigneesSaint-Gobain Abrasives, Inc., Saint-Gobain Abrasifs
InventorEmmanuel C. Francois
Life of this patent
Estimating the term…
Abstract
A dressable bonded abrasive article has a body that includes a bond material comprising an organic material and a blend of abrasive particles. The particles include a first type of abrasive particle comprising an oxide and having a first hardness and a first toughness; a second type of abrasive particle comprising an oxide and having a second hardness greater than the first hardness, and the second type of abrasive particle has a second toughness less than the first toughness; and a third type of abrasive particle comprising an oxide and having a third hardness greater than the first hardness and less than the second hardness, and the third type of abrasive particle has a third toughness less than the first toughness.
Claims23
A dressable bonded abrasive article comprising:
- a body including:
- a bond material comprising an organic material;
- a first type of abrasive particle comprising an oxide;
- a second type of abrasive particle comprising an oxide and different than the first type of abrasive particle;
- the body comprises an average metal removal capability of at least about 5 kg between dressings;
- and
- the first type of abrasive particle has a first hardness that is at least about 5% less than a hardness of the second type of abrasive particle, and further wherein the first hardness is not greater than about 40% less than the hardness of the second type of abrasive particle.
A dressable bonded abrasive article comprising:
- a body including:
- a bond material comprising an organic material;
- a first type of abrasive particle comprising an oxide;
- a second type of abrasive particle comprising an oxide and different than the first type of abrasive particle;
- the body comprises an average metal removal capability of at least about 5 kg between dressings;
- and
- the first type of abrasive particle has a first toughness that is at least about 80% greater than a second toughness of the second type of abrasive particle.
A dressable bonded abrasive body, comprising:
- a bond material comprising an organic material;
- a first type of abrasive particle comprising alumina and zirconia;
- a second type of abrasive particle comprising monocrystalline alumina;
- a third type of abrasive particle comprising a coated abrasive particle having a core of alumina, and a coating layer overlying the core, wherein the coating layer comprises one or more of ceramic, crystalline material, glass, oxide, carbide, nitride and boride;
- and
- the first type of abrasive particle comprises an average particle size of not greater than about 3.5 mm, the average particle size of the first type of abrasive particle that is greater than an average particle size of the second type of abrasive particle, the average particle size of the first type of abrasive particle is greater than an average particle size of the third type of abrasive particle, and the average particle size of the second abrasive particle is greater than the average particle size of the third type of abrasive particle.
Dependencies are inferred from the claim text.