Porous abrasive tool and method for making the same
US6755729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 18, 2003 |
| Grant date | Jun 29, 2004 |
| Priority date | — |
| Expiry date | Jun 18, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09K3/1409
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An abrasive article including from about 40 to about 80 volume percent interconnected porosity, the article being useful as a segment for a segmented grinding wheel, and a method for fabricating the same. The method includes blending a mixture of abrasive grain, bond material and dispersoid particles, the mixture including from about 40 to about 80 volume percent dispersoid particles. In one embodiment the mixture includes from about 50 to about 80 volume percent dispersoid particles. In another embodiment the mixture includes an organic bond material and from about 40 to about 80 volume percent dispersoid particles. The powder mixture is then pressed into an abrasive laden composite and thermally processed. After cooling the composite is immersed into a solvent, which dissolves substantially all of the dispersoid particles, leaving a highly porous, bonded abrasive article.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.