Method for applying hardfacing to a matrix substrate of a drill bit
US9481057B2 · kind B2 · utility
0Cited by
2References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2013 |
| Grant date | Nov 1, 2016 |
| Priority date | — |
| Expiry date | Jan 7, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49742
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method for hardfacing a drill bit includes applying a hardfacing material to a matrix metal forming the substrate of the drill bit. The hardfacing material is applied using a plasma arc welding process. A metallurgical bond is formed between the matrix metal and the hardfacing material. The matrix metal may include tungsten carbide and a braze filler metal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.