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OPTIMIZATION OF HEATING OF GEAR WHEEL USING NUMERICAL MODELING

Citace: BENEŠOVÁ, S., KŘÍŽ, A. OPTIMIZATION OF HEATING OF GEAR WHEEL USING NUMERICAL MODELING. Materiálové Inženierstvo, 2013, roč. 20, č. 3, s. 132-137. ISSN: 1335-0803
Druh: ČLÁNEK
Jazyk publikace: eng
Anglický název: OPTIMIZATION OF HEATING OF GEAR WHEEL USING NUMERICAL MODELING
Rok vydání: 2013
Autoři: Ing. Soňa Benešová Ph.D. , Doc. Dr. Ing. Antonín Kříž ,
Abstrakt CZ: Při telepném zpracování a následném cementování ozubených kol je nutné minimalizovat plastickou deformaci strojního dílu. Tento článek se zabýbá numerickou simulací (DEFORM) ozubeného kola během procesu ohřevu při tepelném zpracování.
Abstrakt EN: Successful heat treating and carburizing of gear wheels for wind turbine gear boxes requires that plastic deformation in the wheel is minimized. Numerical modeling using the DEFORM software was aimed at exploring the effects of the base, on which the gear wheel rests during heating, on the heating process. Homogeneous heating was assumed. It was found that the base heats up more quickly than the workpiece. It is the consequence of the base's shape and volume. As a result, the base expands and slides against the wheel, predominantly at the first heating stage. Later on, it prevents the gear wheel from expanding, causing plastic deformation in the wheel. The findings were used for designing new heating schedules to minimize these undesirable interactions and to reduce the plastic deformation to a negligible magnitude. In addition, this paper presents an example of a practical use of numerical modeling in the DEFORM software.
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