FEM model of induction hardening of gear of mixture material

• Autorzy: Hodek J. , Shykula P.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The purpose of this article is to describe the construction of an FEM model for computing residual stresses generated by induction hardening of a high-carbon steel gear. Design/methodology/approach: The 3D FEM model comprised two parts. The first one which dealt with induction heating was prepared using MSC Marc commercial software. The second one, a model of temperature and deformation fields, was developed with the aid of DEFORM 3D commercial software. Material data was considered to be temperature-dependent. In the second part of the model, the material data was defined on the mixture basis: a separate temperature-dependent data set was specified for each phase, including transformation rules. The data was obtained in part by measuring and in part by calculation using JMatPro commercial software. Temperatures during heating and cooling were measured by means of thermocouples. The convection heat transfer coefficient was determined and the model of induction heating validated using the measured data. The thickness of the martensitic layer upon heat treatment was measured to validate the model. Findings: The 3D FEM model described here predicts the temperature distribution during heat treatment and the thickness of the martensitic layear upon heat treatment accurately. It was thus deduced that this material model was defined correctly and that the calculation of residual stresses would correspond to the reality. Practical implications: Future work should focus on refining the model, e.g. on incorporating transformation plasticity and on analysing the relationship between the residual stress distribution upon heat treatment and the part’s fatigue. Originality/value: The material model described in this article takes into account phase transformations which have a substantial impact on the post-treatment distribution of residual stresses. The 3D FEM model with this type of definition of material provides good predictions of residual stress distribution in the gear.

Słowa kluczowe

EN

gear hardening; induction heating; finite element method (FEM); residual stresses; mixture material

PL

hartowanie kół zębatych; nagrzewanie indukcyjne; metoda elementów skończonych (MES); naprężenia własne

• Wydawca: International OCSCO World Press
• Czasopismo: Journal of Achievements in Materials and Manufacturing Engineering
• Rocznik: 2015
• Tom: Vol. 71, nr 2
• Strony: 87--92
• Opis fizyczny: Bibliogr. 6 poz., rys.

Twórcy

autor

Hodek J.

• COMTES FHT, Prumyslova 995, 334 41, Dobrany, Czech Republic

autor

Shykula P.

• Miba, Nabrezie Oravy 2222, Dolny Kubin, Slovakia

Bibliografia

• [1] J. Barglik, A. Smalcerza, R. Przyluckia, I. Doležel, 3D modeling of induction hardening of gear wheels, Journal of Computational and Applied Mathematics 270 (2014) 231-240.
• [2] J. Montalvo-Urquizo, Q. Liu, A. Schmidt, Simulation of quenching involved in induction hardening including mechanical effeects. Computational Materials Science 79 (2013) 639-649.
• [3] P. Šuchman, J. Hodek, Optimization of Induction Hardening Parameters through FEM Simulation, Proceedings of the 20th IFHTSE Congress, 2012, Beijing.
• [4] J. Hodek, FEM simulation induction heating process, Proceedings of the 23th International Conference on Metallurgy and Materials, METAL’2014, Czech Republic.
• [5] Theory and User Information, Marc 2014, Volume A, 331.
• [6] Deform v11.0.2 System Documentation.