Method for producing a press-hardened laser welded steel part and press-hardened laser welded steel part
US11911847B2 · kind B2 · utility
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19Claims
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Key dates
| Filing date | Feb 26, 2019 |
| Grant date | Feb 27, 2024 |
| Priority date | — |
| Expiry date | Oct 15, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C38/48
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method for producing a part includes providing a first and a second precoated sheet (1,2), butt welding the first and second precoated sheets (1) to obtain a blank (15), and heating the blank (15) to a heat treatment temperature at least 10° C. lower than the full austenitization temperature of the weld joint (22) and at least 15° C. higher than a minimum temperature Tmin:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.