Method and device for reducing overpenetration at the start of plasma arc welds
US6037561A · kind A · utility
0Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 1998 |
| Grant date | Mar 14, 2000 |
| Priority date | — |
| Expiry date | Jun 26, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K33/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A shim for improving plasma arc weld quality has ends tapered at about 25.degree. and notches at each end roughly centered over the corner between the tapered ends and main body of the shim. The improved shim allows lower starting plasma arc heat input and reduces the occurrence of sagging, or overpenetration, of the weld.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.