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Issue title: Selected papers from the International Conference Heating by Electromagnetic Sources - HES 2019
Guest editors: Paolo Di Barba, Fabrizio Dughiero, Michele Forzan and Elisabetta Sieni
Article type: Research Article
Authors: Barglik, Jerzya; | Ducki, Kazimierza | Kuc, Dariusza | Smagór, Adriana | Smalcerz, Alberta
Affiliations: [a] Silesian University of Technology, Katowice, Poland
Correspondence: [*] Corresponding author: J. Barglik, Silesian University of Technology, ul. Krasińskiego 8, 40-019 Katowice, Poland. Tel.: +48326034206; Fax: + 48326034297; E-mail: [email protected]
Abstract: The paper deals with the Consecutive Dual Frequency Induction Hardening of small gear wheels made of the special quality steel AISI 4340. Mathematical model of the process is elaborated. A special emphasis is put on a determination of hardness and microstructure calculated by the modified QT steel software. Exemplary computations are compared with measurements and reasonable accordance between them is achieved. An expected contour shape of the hardened zone is obtained. However for the analysed case the shape of the hardened zone is non-uniform. In order to achieve its uniform thickness along the working surface of tooth shorter heating times and higher power delivered to inductor-gear wheel system should be applied.
Keywords: Induction surface hardening, critical temperatures, hardness, tempered martensite
DOI: 10.3233/JAE-209111
Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 63, no. S1, pp. S131-S140, 2020
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