Laser welded joint, vehicle component, manufacturing method of laser welded joint, and manufacturing method of vehicle component
US10697486B2 · kind B2 · utility
2Cited by
1References
14Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 19, 2015 |
| Grant date | Jun 30, 2020 |
| Priority date | — |
| Expiry date | Aug 23, 2036 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2211/008
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A laser welded joint has weld metal provided between a plurality of steel sheets. A chemical composition of the weld metal has predetermined components, and average hardness of the weld metal is 350 to 540 in Vickers hardness. In the weld metal, distribution density of porosities having a diameter of 2 μm to 50 μm is equal to or less than 5.0 pieces/mm2. In the weld metal, distribution density of oxide inclusions having a diameter of 3 μm or more is 0.1 to 8.0 pieces/mm2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.