Laser welding
US4127761A · kind A · utility
41Cited by
2References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 25, 1977 |
| Grant date | Nov 28, 1978 |
| Priority date | — |
| Expiry date | Oct 25, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/1464
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In laser-beam welding apparatus, a gas jet from a first gas conduit is directed at plasma created by the interaction of the laser beam and the workpiece material, the gas jet being adapted to blow the plasma into the weld zone, a second gas conduit providing shielding gas at the region of the crossover of the laser beam and the plasma-control jet to reduce the possibility of contamination or porosity of the weld zone into which the plasma is blown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.