A Method of Suppression of Hardness-Decrease of Hardened Carbon Steel in Grinding Process

In this study, a new method is proposed to suppress a hardness-decrease in a ground surface of a hardened carbon steel with a grinding process, by the nitriding caused with a solid phase reaction in N2 gas grinding process. Modified nitriding in a halogen lamp rapid heating furnace and grinding test...

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Bibliographic Details
Published inJournal of the Japan Society for Precision Engineering, Contributed Papers Vol. 72; no. 4; pp. 494 - 498
Main Authors OHTA, Hajime, YAMADA, Hirohumi, OKADA, Shyoziroh
Format Journal Article
LanguageEnglish
Published Tokyo The Japan Society for Precision Engineering 05.04.2006
Japan Science and Technology Agency
Subjects
grinding process
hardened carbon steel
hardness-decrease
N2 gas
nitriding
suppression
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ISSN1348-8724
1881-8722
DOI10.2493/jspe.72.494

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Summary:In this study, a new method is proposed to suppress a hardness-decrease in a ground surface of a hardened carbon steel with a grinding process, by the nitriding caused with a solid phase reaction in N2 gas grinding process. Modified nitriding in a halogen lamp rapid heating furnace and grinding test show following results: (1)Grinding method using N2 gas supplied throw out wheel has a possibility to suppress the hardness-decrease of the ground surface of a hardened carbon steel. (2) The thickness of the nitrified layer obtained by the grinding in N2 gas is thinner than that obtained by a common method. (3) The grinding in N2 gas with a coolant is also useful to accelerate the suppress hardness-decrease in grinding process.
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ISSN:1348-8724
1881-8722
DOI:10.2493/jspe.72.494