Tailored blank for hot stamping, hot stamped member, and methods for manufacturing same
US10807138B2 · kind B2 · utility
2Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2018 |
| Grant date | Oct 20, 2020 |
| Priority date | — |
| Expiry date | Feb 27, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2251/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A tailored blank for hot stamping includes a welded portion formed by butt-welding a first aluminum-plated steel sheet and a second aluminum-plated steel sheet, an Average Al concentration of a weld metal in the welded portion is in a range of 0.3 mass % to 1.5 mass %, an Ac3 point of the weld metal is 1250° C. or lower, and furthermore, an aluminum layer formed during the butt-welding is present on a surface of the welded portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.