Method of pulse welding and contact tip therefor
US7557327B2 · kind B2 · utility
12Cited by
9References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2007 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Dec 14, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/287
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A contact tip for a welding gun having a central passage for a welding wire moving in a given direction toward a workpiece and receiving a welding signal by contact of the wire with the tip. The passage has an innermost end, an outermost exit end and a length of at least 1.5 inches and an opening in the contact tip intersects the passage so a pressure block slidably mounted in the opening is biased toward the wire by a spring around the contact tip urging the block against the wire. This tip is dimensioned and constructed to perform pulse welding by a relatively ductile aluminum wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.