Methods for producing weld joints having thermally enhanced heat-affected-zones with excellent fracture toughness
US6845900B2 · kind B2 · utility
2Cited by
7References
5Claims
0Family size
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Key dates
| Filing date | May 19, 2003 |
| Grant date | Jan 25, 2005 |
| Priority date | — |
| Expiry date | Aug 13, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K9/0213
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Methods of welding two pieces of metal to produce a weld joint having excellent fracture toughness are provided. Two pieces of metal are positioned for welding so as to form a narrow weld groove having two sidewalls with bevel angles of less than about 10°. Two or more layers are applied to the weld groove to produce the weld joint such that the heat-affected-zone of the weld joint is substantially free of rogue grains.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.