High infeed rate method for grinding ceramic workpieces with silicon carbide grinding wheels
US6220933A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 19, 1999 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Jul 19, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D5/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for accurately and economically shaping a zirconia workpiece with a relatively inexpensive silicon carbide grinding wheel is provided. The grinding wheel used in the method preferably utilizes 220 mesh silicon carbide particles bound in a low porosity vitreous matrix. The grinding wheel is then rotated at a sufficient speed to implement a grinding operation, and is engaged against the zirconia workpiece at a diametral feed rate of at least 0.04 mm/sec. The method advantageously removes material from the zirconia workpiece at a high rate of speed with minimal wheel wear, and results in accurate cuts and smooth surface finishes, and also eliminates the need for dressing the wheel prior to the grinding operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.