Forged product and crankshaft manufactured from it

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United States of America Patent

PATENT NO 8343255
APP PUB NO 20100081004A1
SERIAL NO

12505736

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Abstract

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When the density (DO) of the inclusions whose major axis exceeds 5 μm observed in the axis position of a section perpendicular to the axial direction of a forged product is made 70 nos/cm2 or below and the radius of the forged product is made R, the ratio of the density (DR) of the inclusions whose major axis exceeds 5 μm observed in the R/3 position from the axis position toward the radial direction and the density DO satisfies an inequality (1) below.

description='In-line Formulae' end='lead'0.5≦DR/DO≦1.50  (1)description='In-line Formulae' end='tail'

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Patent Owner(s)

  • KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.);KOBE STEEL, LTD.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Abiko, Takashi Kobe, JP 6 81
Deura, Tetsushi Kobe, JP 9 11
Hori, Shunsuke Takasago, JP 3 3
Nishihara, Michio Takasago, JP 1 3
Otsuki, Eiji Takasago, JP 13 20
Shinozaki, Tomoya Takasago, JP 1 3

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