Shielding apparatus for metal processing operations
US4642445A · kind A · utility
20Cited by
7References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 28, 1985 |
| Grant date | Feb 10, 1987 |
| Priority date | — |
| Expiry date | Jun 28, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K26/147
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention provides a generic shield that can be used in welding, surfacing and cladding operations. These operations can be performed with either high power density processes such as lasers and out of vacuum electron means or arc assisted processes and plasma welding and/or cladding systems. The shield physically isolates the shielded region from the surrounding area by providing a zone of inert gas over the work area. As a result, the shield is functionally made to resemble a chamber which moves over the substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.