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US 10,717,908 B2Granted
Abrasive particle with at most three surfaces and one corner
AssigneeRobert Bosch GmbH
InventorsGeorg Hejtmann, Petra Stedile, Stefan Fuenfschilling, Moritz Oldenkotte, Thomas Rohner, Donat Frei, Adrian Jenni, Tony Pleschinger, Gert Lindemann, Andreas Harzer
Life of this patent
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Abstract
An abrasive particle includes at most three surfaces and at least one edge which has a corner at at least one end. The abrasive particle may contain a ceramic material, particularly polycrystalline α-Al2O3. Abrasive particles as a whole, methods for producing abrasive particles, moulds, abrasive articles, methods for producing abrasive articles, and methods for abrading a surface are also disclosed.
Claims13
An abrasive grain comprising:
- two opposite base faces each defining an outline that has at least one concave section,
- wherein the abrasive grain is in the shape of a straight prism,
- wherein a tangent to at least one point on the at least one concave section runs at an angle of between −5° and +5° relative to a perpendicular plane that is orthogonal to a support plane at which the abrasive grain is configured to be supported.
Dependencies are inferred from the claim text.