Protrusion molding device, protrusion molding method, and molded article

Number of patents in Portfolio can not be more than 2000

United States of America

PATENT NO 11224909
APP PUB NO 20180200773A1
SERIAL NO

15742742

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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Provided are a protrusion forming device, a protrusion forming method, and a formed article, with which a height equal to or greater than the plate thickness is possible, the edges are sharp, and cracking can be prevented. This protrusion forming device is characterized by being equipped with a die unit provided with a die hole, and a punch unit having a large punch part with a size such that this part cannot be inserted into the die hole, and a small punch part that protrudes from the large punch part toward the die unit and can be inserted into the die hole, and characterized in that the workpiece is deformed by pressing a portion of the workpiece arranged between the die unit and the punch unit toward the die unit by means of the punch unit, thereby forming a protrusion.

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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
Nishijima, Shinnosuke Tokyo, JP 6 18
Tomimura, Kouki Tokyo, JP 24 123

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