Forged component, method for manufacturing the same, and connecting rod

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United States of America Patent

PATENT NO 10822677
APP PUB NO 20150354042A1
SERIAL NO

14762367

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A forged component having a chemical composition including, by mass %, C: 0.30 to 0.45%, Si: 0.05 to 0.35%, Mn: 0.50 to 0.90%, P: 0.030 to 0.070%, S: 0.040 to 0.070%, Cr: 0.01 to 0.50%, Al: 0.001 to 0.050%, V: 0.25 to 0.35%, Ca: 0 to 0.0100%, N: 0.0150% or less, and the balance being Fe and unavoidable impurities, and satisfying formula 1. Metal structure is a ferrite pearlite structure, and a ferrite area ratio is 30% or more. Vickers hardness is in the range of 320 to 380 HV. 0.2% yield strength is 800 MPa or more. A Charpy V-notch impact value is in the range of 7 to 15 J/cm2.

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Patent Owner(s)

  • AICHI STEEL CORPORATION; C/O TOYOTA JIDOSHA KABUSHIKI KAISHA

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Kitano, Tomoyasu Aichi, JP 8 17
Koma, Hisanori Aichi, JP 7 13
Owaki, Susumu Aichi, JP 3 5
Shinohara, Nobuyuki Gifu, JP 15 21
Tanahashi, Kazuhiro Aichi, JP 50 195
Uenishi, Takeyuki Aichi, JP 2 0

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