Abrasive means

Patent metadata

Field	Value
Publication number	US-9969057-B2
Application number	US-201414901071-A
Country	US
Kind code	B2
Filing date	Jun 24, 2014
Priority date	Jun 28, 2013
Publication date	May 15, 2018
Grant date	May 15, 2018

Abstract

An abrasive member includes an abrasive member base and a plurality of abrasive particles applied to the abrasive member base. At least a large proportion of the abrasive particles form an abrasive edge unit with an abrasive edge inclined at an angle between 0° and 90° relative to a defined working direction.

First claim

The invention claimed is:

1. An abrasive member, comprising:
an abrasive member backing; and
a plurality of abrasive particles applied to the abrasive member backing,
wherein at least a large proportion of the abrasive particles form at least one abrasive edge unit having an abrasive edge inclined at an angle between 0° and 90° relative to a defined machining direction of the abrasive member,
wherein each abrasive particle of the at least one abrasive edge unit has at least one edge that is oriented at the angle, the abrasive edge defined by the edges of the abrasive particles, and
wherein the at least one abrasive edge unit is configured as a row of abrasive particles arranged directly adjacently.

2. The abrasive member as claimed in claim 1 , wherein the abrasive edge is inclined at a defined angle between 0° and 90° relative to the defined machining direction and the defined angle is set purposely.

3. The abrasive member as claimed in claim 1 , wherein the abrasive particles are applied to the abrasive member backing with one or more of a defined orientation and/or a defined position.

4. The abrasive member as claimed in claim 1 , wherein the abrasive member backing is configured as a cylindrical roller.

5. The abrasive member as claimed in claim 1 , wherein the abrasive particles have a surface contour described at least substantially by a convex envelope.

6. The abrasive member as claimed in claim 1 , wherein the abrasive particles have a ratio between a height of the abrasive particles and a diameter of a base area having a value between 0.3 and 1.2.

7. The abrasive member as claimed in claim 1 , wherein the abrasive particles have at least substantially a pyramidal basic shape.

8. The abrasive member as claimed in claim 1 , wherein the abrasive particles comprise at least one partially prismatically configured sub-element.

9. The abrasive member as claimed in claim 1 , wherein the abrasive particles have a hexagonal base area.

10. The abrasive member as claimed in claim 1 , wherein the abrasive particles have a quadrangular base area.

11. The abrasive member as claimed in claim 1 , wherein the abrasive particles have an oval base area.

12. The abrasive member as claimed in claim 1 , wherein the abrasive particles have at least one setback surface region that is configured at least partially as a groove, the groove defining a predetermined breaking point for a portion of each of the abrasive particles to break off from the respective abrasive particle in a controlled manner.

13. An abrasive particle for an abrasive member, comprising:
a body having a plurality of surfaces, a portion of the body in which two surfaces of the abrasive particle converge define an edge,
wherein the abrasive particle is configured as one of a plurality of abrasive particles applied to an abrasive member backing,
wherein the abrasive particle and a large proportion of the plurality of abrasive particles form at least one abrasive edge unit having an abrasive edge inclined at an angle between 0° and 90° relative to a defined machining direction, the edge of the abrasive particle is oriented at the angle and defines a portion of the abrasive edge of the abrasive edge unit, and
wherein the abrasive particles of the abrasive edge unit each have a base body, the abrasive edge unit being configured as a row of abrasive particles with the base bodies of the abrasive particles in the row being interconnected.

14. The abrasive member as claimed in claim 1 , wherein the abrasive edge is defined by the oriented edge of each of the abrasive particles.

15. The abrasive member as claimed in claim 1 , wherein the abrasive particles of the abrasive edge unit each have a base body, and wherein the base bodies of the abrasive particles in the row are interconnected.

16. The abrasive member as claimed in claim 2 , wherein the defined angle is set purposely by an application method.

17. An abrasive member, comprising:
an abrasive member backing; and
a plurality of abrasive particles applied to the abrasive member backing,
wherein at least a large proportion of the abrasive particles form at least one abrasive edge unit having an abrasive edge inclined at an angle between 0° and 90° relative to a defined machining direction of the abrasive member,
wherein each abrasive particle of the at least one abrasive edge unit has at least one edge that is oriented at the angle, the abrasive edge defined by the edges of the abrasive particles,
wherein the at least one abrasive edge unit is configured as a row of abrasive particles arranged directly adjacently, and
wherein the abrasive particles of the abrasive edge unit each have a base body, the base bodies of the abrasive particles in the row being interconnected.

Assignees

• Bosch Gmbh Robert

Inventors

• Eugster Beat
• Hejtmann Georg
• Rohner Thomas
• Zaech Roman
• Kipfer Thomas
• Materna Ralf
• Schoch Adrian
• Misak Jiri
• Stedile Petra
• Eggenberger Peter
• Fuenfschilling Stefan

Classifications

• C09K3/1409

  Abrasive particles per se (preparation of diamond C01B32/25) · CPC title

• B24D15/00

  Hand tools or other devices for non-rotary grinding, polishing, or stropping · CPC title

• B24D7/00

  Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting otherwise than only by their periphery, e.g. by the front face; Bushings or mountings therefor · CPC title

• B24D5/00

  Bonded abrasive wheels, or wheels with inserted abrasive blocks, designed for acting only by their periphery; Bushings or mountings therefor · CPC title

• B24D18/00

  Manufacture of grinding tools {or other grinding devices}, e.g. wheels, not otherwise provided for · CPC title