Metal member quality improving method by spot welding
US5494539A · kind A · utility
5Cited by
4References
21Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Aug 29, 1994 |
| Grant date | Feb 27, 1996 |
| Priority date | — |
| Expiry date | Aug 29, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2221/00
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
By applying spot welding along a crack which has occurred in an austenitic stainless steel structure without use of welding material so that spot welds are connected, melting and solidifying of the crack can be achieved, thereby to provide a metal structure which is rich with delta ferrite of the austenitic stainless steel structure or prevent propagation of the crack by enclosing it into the interior of the austenitic stainless steel structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.