The paper presents the modelling of hot forging and cooling stages in the production of turbine blades. The developed modelling approach utilises both numerical and experimental techniques. 3D numerical models of the forming and cooling stages are developed considering a full coupling between thermal, mechanical and metallurgical events; in order to assure accuracy in their results, these models are suitably calibrated through data obtained from industrial trials and laboratory physical simulation experiments. The possibility of investigating the influence of different cooling paths on the final component geometry through the above mentioned models is then shown and discussed. The approach is applied to two geometries of turbine blades made of two different high- strength steels.
Modelling of turbine blades hot forging and cooling
GHIOTTI, ANDREA;BRUSCHI, STEFANIA;
2008
Abstract
The paper presents the modelling of hot forging and cooling stages in the production of turbine blades. The developed modelling approach utilises both numerical and experimental techniques. 3D numerical models of the forming and cooling stages are developed considering a full coupling between thermal, mechanical and metallurgical events; in order to assure accuracy in their results, these models are suitably calibrated through data obtained from industrial trials and laboratory physical simulation experiments. The possibility of investigating the influence of different cooling paths on the final component geometry through the above mentioned models is then shown and discussed. The approach is applied to two geometries of turbine blades made of two different high- strength steels.Pubblicazioni consigliate
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