Mechanical structural component and method for manufacturing same

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United States of America Patent

PATENT NO 10618101
APP PUB NO 20160207094A1
SERIAL NO

14914424

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A mechanical structural component is a toothed component obtained by performing cold forging and carburizing treatment on a steel having a predetermined chemical composition, in prior austenite grains after the carburizing treatment, an area ratio of crystal grains of 50 μm or less is 80% or more, and an area ratio of crystal grains exceeding 300 μm is 10% or less, and a total helix deviation of teeth after the carburizing treatment satisfies Formula (1)

description='In-line Formulae' end='lead'(Bmax/L)×103≤5  (1)description='In-line Formulae' end='tail'

where Bmax is a maximum total helix deviation in all teeth in mm, and L is a face width in mm.

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Patent Owner(s)

  • JFE STEEL CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Imanami, Yuta Tokyo, JP 6 0
Iwamoto, Takashi Tokyo, JP 181 2921
Uwai, Kiyoshi Tokyo, JP 11 26

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