Self-sharpening, laminated cutting tool and method for making the tool
US6207294A · kind A · utility
Inventor
Key dates
| Filing date | Apr 30, 1999 |
| Grant date | Mar 27, 2001 |
| Priority date | — |
| Expiry date | Apr 30, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/12576
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An explosive laminated cutting tool which provides a self sharpening edge. The improved cutting tool s preferably comprised of two softer metals adhered to a hard central layer forming the cutting edge, with the central layer being made of such a material as tungsten carbide. The central laminate layer is preferably perforated to allow the outer layers to fuse through the perforations to adhere to one another, thus creating a strongly bonded laminated cutting structure which may be self sharpening. A method for manufacturing the cutting tool is also described. Another embodiment comprises a laminate wherein one of the layers has a plurality of recesses in the surface facing another layer. The recesses are filled with particles such as tungsten carbide or diamond. When the layers are explosively welded together, the particles are fused in the weld area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.