Plasma arc welding apparatus and welding method using the same
US5728991A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 1995 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Oct 31, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K10/02
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
There is provided a plasma arc welding apparatus which comprises a plasma torch and a spacing retention member which is securely fixed to the plasma torch and whose frontal end is located between a frontal end of the plasma torch and a weld workpiece and is adapted to be pressed against the workpiece while the latter is being welded. There is also provided a plasma arc welding method which makes use of a plasma arc welding apparatus that comprises a plasma torch and a spacing retention member which is securely fixed to a base of the plasma torch and whose frontal end is located between a frontal end of the plasma torch and a welding workpiece, in which method the frontal end of the spacing retention member is pressed against the workpiece while the latter is being welded.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.