Method for grinding complex shapes
US7708619B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 23, 2006 |
| Grant date | May 4, 2010 |
| Priority date | — |
| Expiry date | Oct 5, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB24D3/18
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of producing a complex shape in a workpiece includes the steps of: i) grinding a workpiece at a maximum specific cutting energy of about 10 Hp/in3·min with at least one bonded abrasive tool, thereby forming a slot in the workpiece; and ii) grinding the slot with at least one mounted point tool, thereby producing the complex shape in the slot. The bonded abrasive tool includes at least about 3 volume % of a filamentary sol-gel alpha-alumina abrasive grain having an average length-to-cross-sectional-width ratio of greater than about 4:1 or an agglomerate thereof. A method of producing a slot in a metallic workpiece having a maximum hardness value of equal to, or less than, about 65 Rc includes the step of grinding the workpiece with a bonded abrasive tool at a material removal rate in a range of between about 0.25 in3/min·in and about 60 in3/min·in and at a maximum specific cutting energy of about 10 Hp/in3·min.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.