Metal plate forming method and forming device

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United States of America Patent

PATENT NO 9962751
SERIAL NO

14785707

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Abstract

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A plurality of protruding portions is formed in a metal plate material through a plurality of steps by use of forming tools each of which includes a die and a punch. An arrangement pitch between a concave portion and a convex portion for use in forming the protruding portions in the die and the punch that are used in a post-process is made narrower than an arrangement pitch between a concave portion and a convex portion for use in forming the protruding portions in the die and the punch that are used in a pre-process.

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Patent Owner(s)

Patent OwnerAddress
TOYOTA BOSHOKU KABUSHIKI KAISHAKARIYA-SHI AICHI-KEN 448-8651

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hirata, Kazuyuki Toyota, JP 60 262

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