Welding contact tips for pulse applications
US8383987B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 10, 2010 |
| Grant date | Feb 26, 2013 |
| Priority date | — |
| Expiry date | Aug 12, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/123
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A contact tip for a welding torch includes a body having a front discharge end, an opposite rear feed end, and a bore extending through the body. A cap is mounted on the body at the front end. The cap has an aperture generally aligned with the bore. The cap is composed of a material having an electrical conductivity between 1.74×107 and 4.35×107 Siemens per meter at 20° C. The body is composed of a material selected from the group consisting of copper and a copper alloy. The body has an electrical conductivity that is higher than the electrical conductivity of the cap. A portion of the bore at the front end of the body and at least a portion of the aperture in the cap define a contact area for a consumable electrode wire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.