Narrow gap arc welding apparatus and method
US8357876B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2010 |
| Grant date | Jan 22, 2013 |
| Priority date | — |
| Expiry date | Jan 12, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/0213
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of arc welding a first metal piece to a second metal piece includes the steps of extend a welding head between the space between first and second metal pieces, bending a filler wire, passing the bent filler wire through the welding head such that an end of the bent filler wire extends in a direction toward a surface of one of the first and second metal pieces, and arc welding the end portion of the bent filler wire onto the surface of the metal piece. The method further includes rotating the end of the bent filler wire toward another surface of the metal pieces and arc welding the of end of the rotated bent filler wire onto the surface of the another metal piece. The welding head travels along the space between the first and second metal pieces as the step of arc welding occurs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.