Loading patent…
AssigneeNippon Steel Corporation
InventorsNaoki KIMOTO, Masahiro KUBO, Keinosuke IGUCHI, Hiroshi YOSHIDA, Hideaki IRIKAWA, Soshi FUJITA, Yuki SUZUKI
Estimating the term…
A blank includes multiple steel sheets. The multiple steel sheets are disposed to form an annular shape in plan view of the blank and joined to each other. The multiple steel sheets include steel sheets. An end part of a first steel sheet and an end part of a second steel sheet form an overlap part. Among the multiple steel sheets, a steel sheet that forms a part having a smallest sheet thickness in the blank is a plated steel sheet. The overlap part has a largest sheet thickness in the blank. An emissivity of a surface of each of the steel sheets that is located on an outer side of the overlap part is higher than an emissivity of at least one of other surfaces of the multiple steel sheets.
A blank for hot stamping, comprising:
A structural member, comprising:
A structural member, comprising:
Dependencies are inferred from the claim text.