Method and device for reducing overpenetration at the start of plasma arc welds
US5773786A · kind A · utility
2Cited by
2References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1997 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | Sep 17, 2017 |
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.