Numerical Determination of Target Values and Process Parameters of Case Hardening, Taking into Account the Local Stress State of Failure-Relevant Construction Details-Reference-Cited by-同舟云学术

Numerical Determination of Target Values and Process Parameters of Case Hardening, Taking into Account the Local Stress State of Failure-Relevant Construction Details

Published:2023-10-01 Issue:6 Volume:78 Page:352-368
ISSN:2194-1831
Container-title:HTM Journal of Heat Treatment and Materials
language:en
Short-container-title:

Author:

Diemar A.¹,Gerth U.²,Lahmer T.²,Teichert G.²,Könke C.³

Affiliation:

1. Materials Research and Testing Institute Weimar (MFPA), Coudraystraße 9, 99423 Weimar, Materials Research and Testing Institute Weimar (MFPA), branch office at the TU Ilmenau , Gustav-Kirchhoff-Straße 5 , Ilmenau Germany

2. Materials Research and Testing Institute Weimar (MFPA) , Coudraystraße 9 , Weimar Germany

3. Materials Research and Testing Institute Weimar (MFPA), branch office at the TU Ilmenau , Gustav-Kirchhoff-Straße 5 , Ilmenau Germany

Abstract

Abstract Through the thermochemical process of case hardening, the local material strength of steel components can be increased. In addition to the increase in stress due to the notch effect, the shape of construction details also has an effect on key component properties after case hardening, such as edge hardness and case hardening depth. The component-related specification of target values for case hardening is currently based on empirical values or expert knowledge. In addition, the effect of design details during case hardening is not taken into account when specifying process parameters in the control and regulation software of case hardening systems. This article presents a concept for the numerical determination of target values and process parameters for case hardening based on the stress state of the component. Compared to the empirically based determination of target values and process parameters for case hardening, the application of the concept makes it possible to adapt the case hardening of components to their stress in the failure range and thus significantly increase the energy and resource efficiency of case hardening.

Publisher

Walter de Gruyter GmbH

Subject

Materials Chemistry,Metals and Alloys,Industrial and Manufacturing Engineering

Link

https://www.degruyter.com/document/doi/10.1515/htm-2023-0023/pdf

Reference37 articles.

1. Radaj, D.; Vormwald, M.: Ermüdungsfestigkeit – Grundlagen für Ingenieure. Springer, Berlin, 2007, DOI:10.1007/978-3-540-71459-0

2. Eckstein, H. J.: Technologie der Wärmebehandlung von Stahl. VEB Deutscher Verlag für Grundstoffindustrie, Leipzig, 1987

3. Grosch, J.; Küper, A.; Trautmann, F.: Einsatzhärten: Grundlagen – Verfahren – Anwendung – Eigenschaften einsatzgehärteter Gefüge und Bauteile. expert verlag, Tübingen, 2019. – ISBN:978-3-8169-8468-9

4. Wünning, J.; Leyens, G.; Woelk, G.: Gesteuerte Aufkohlung in CO-freien Atmosphären. HTM Härterei-Techn. Mitt. 31 (1976) 3, pp. 132–136, DOI:10.1515/htm-1976-310302

5. Thumser, R.; Kleemann, S.; Diemar, A.; Kleemann, A.; Bergmann, J. W.; Beier, H.-T.; Rosetti, A.; Schlitzer, T.; Zerres, P.; Vormwald, M.: Betriebsfestigkeit von Hochdruckbauteilen mit kleinen Schwingspielen großer Häufigkeit. Vorhaben Nr. 1000; Abschlussbericht, Forschungsvereinigung Verbrennungskraftmaschinen e. V. Frankfurt, 2012