Method of welding a carbon steel and an austenitic stainless steel together and resultant structure
US5628449A · kind A · utility
17Cited by
0References
8Claims
0Family size
Assignee
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Key dates
| Filing date | Jun 7, 1995 |
| Grant date | May 13, 1997 |
| Priority date | — |
| Expiry date | Jun 7, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/001
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Method of welding a carbon steel and a austenitic stainless steel involves using high density energy beam like a laser beam or electron beam. Welding using high density energy beam is effective to obtain a high precision welding. For the purpose of obtaining both high precision and no cracks, and no deformation, the method of the invention controls the structure of a weld portion to be a mixed structure of an austenitic structure and not greater than 20 wt % of a ferritic structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.