Tailored blank for hot stamping, hot stamped member, and methods for manufacturing same

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United States of America Patent

PATENT NO 9901969
SERIAL NO

14385559

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
NIPPON STEEL CORPORATION6-1 MARUNOUCHI 2-CHOME CHIYODA-KU TOKYO 100-8071

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kawasaki, Kaoru Tokyo, JP 41 291
Miyazaki, Yasunobu Tokyo, JP 25 40
Naito, Yasuaki Tokyo, JP 7 10
Yoshinaga, Takahiro Tokyo, JP 3 3

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