Heat treatment method and assembly method for fitted component

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United States of America Patent

PATENT NO 11000924
APP PUB NO 20200206850A1
SERIAL NO

16811066

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Abstract

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A heat treatment method is provided in which a first steel component (11) formed with a coating (111) thereon is fitted in first holes (123, 124) of a second steel component (12) subjected to a quenching treatment. The heat treatment method includes a heating step of heating the second steel component to a first temperature (T1) equal to or higher than a tempering temperature (T0) of the second steel component and higher than a temperature of the first steel component by a temperature difference (ΔT) for achieving shrink fitting and a shrink-fitting step of shrink-fitting the first steel component in the first holes of the second steel component in a state of maintaining the temperature difference for achieving shrink fitting between the first steel component and the second steel component.

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Patent Owner(s)

Patent OwnerAddress
NISSAN MOTOR CO LTDYOKOHAMA-SHI KANAGAWA 221-0023

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Hiraishi, Ryosuke Kanagawa, JP 2 0
Okayama, Yukichi Kanagawa, JP 3 1
Oshio, Takeshi Kanagawa, JP 3 57
Sugimoto, Tsuyoshi Kanagawa, JP 86 1315
Tanaka, Kei Kanagawa, JP 106 1354
Yasui, Kenji Kanagawa, JP 61 659

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