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Wear behavior of laser hardening tool steels 1.2311 and 1.2379

Citace: [] KLUFOVÁ, P., KŘÍŽ, A., HÁJEK, J., NĚMEČEK, S. Wear behavior of laser hardening tool steels 1.2311 and 1.2379. In Vrstvy a povlaky 2011. Trenčín: Miloš Vavrík - Knihviazačstvo, Trenčín, 2011. s. 61-66. ISBN: 978-80-970824-0-6
Druh: STAŤ VE SBORNÍKU
Jazyk publikace: eng
Anglický název: Wear behavior of laser hardening tool steels 1.2311 and 1.2379
Rok vydání: 2011
Místo konání: Trenčín
Název zdroje: Miloš Vavrík - Knihviazačstvo, Trenčín
Autoři: Ing. Pavla Klufová , Doc. Dr. Ing. Antonín Kříž , Ing. Jiří Hájek Ph.D. , Ing. Stanislav Němeček Ph.D.
Abstrakt CZ: Technologie HPDD laseru umožňuje využití vysoké intenzity záření laseru k zakalení ocelí.
Abstrakt EN: Technology of HPDD laser surface hardening using high intensity of light radiation, which leads to short time rapid warming up the surface of material and rapid cooling due to thermal conductivity. Basic contribution of this technology is quick process of the treating without liquid cooler. This type of treatment needs no machining after laser surface hardening (shape changes are not bigger than 20 ?m on 2 mm thick hardened surface), only for special needs is used grinding. Other contribution of laser hardening is favorable course residual strains, which are in this case the greatest at surface in contrary of classic hardening. It is because of cooling, which is caused by material conductivity and goes into the material. This favorable influences come to light during contact wear and resulting degradation of surface. This behavior study is subject of this article which is aimed to wear analysis of the laser surface hardened materials 1.2311 and 1.2379.
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