Laserové povrchové kalení nástrojových ocelí

Bc. Jakub VOBER

Master's thesis

Laser surface hardening of tool steels

Abstract:

Tato prace shrnuje v teoreticke casti zasady objemoveho tepelneho zpracovani a povrchoveho tepelneho zpracovani nastrojovych oceli. V prakticke casti je zpracovan experiment s 3mi druhy nastrojovych oceli. Za ucelem povrchoveho kaleni soucasti byly pozorovany stopy vytvorene diodovym (HPDD) laserem. Vyhodnoceni stop bylo provedeno na zaklade makrotvrdosti a mikrotvrdosti podle Vickerse. Struktura byla podrobena metalografickemu pozorovani.

Abstract:

This thesis summarizes the theoretical principles of volumetric heat treatment and surface heat treatment of tool steels. The practical part of this thesis is prepared to experiment with 3 types of tool steels. For the purpose of surface hardening of component were observed traces generated by HPDD laser. Evaluation of the tracks were made on the basis Vickers macrohardness and microhardness test. The structure was subjected metallographic observation.

Keywords

laserove kaleni, povrchove kaleni­, povrchove inzenyrstvi, HPDD laser, nastrojove oceli, objemove tepelne zpracovani, iontova implantace, kaleni?‚­, tepelne zpracovani, karbidy v nastrojovych ocelich, 19857, 19573, 19313, CSN 41 9857, CSN 41 9573, CSN 41 9313

Language used: Czech

Date on which the thesis was submitted / produced: 27. 5. 2011

Identifier: 40283

Thesis defence

• Date of defence: 17. 6. 2011
• Supervisor: Doc. Dr. Ing. Antonín Kříž

University of West Bohemia

Faculty of Mechanical Engineering

Master programme / field:
Mechanical Engineering / Materials Engineering and Engineering Metallurgy