Vers la modélisation d’une presse à vis : développement d’un modèle statique élastique
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The increasing use of superalloys in the forging industry induces the development of new manufacturing processes. These new processes are set up thanks to Finite Element simulation. But regarding the prediction of the energy required to form a part in superalloys, significant differences are observed between numerical and experimental results. In our vision, this can be explained by the fact that forging machines models implemented in Finite Element software are not enough detailed. Thus, this study focuses on the particular case of a forging machine limited in energy: a screw press. This work is a first step toward a complete and detailed modelling of the screw press. To begin, a purely static elastic model of the press uprights has been developed, and this model was validated by comparison with a Finite Element model of the uprights. Then, this Finite Elements model has been made more complex by adding the cross-head of the press. This model has been validated thanks to experiences carried out with the help of a 3D tracking points system, allowing us to analyze the press behavior during blows.
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A new tailored solution to predict blow efficiency and energy consumption of hammer-forging machines Article dans une revue avec comité de lectureMULL, Jean-François; DURAND, Camille; BAUDOUIN, Cyrille; BIGOT, Régis (Springer Verlag, 2020)Energy saving has become a real issue in process management and has led to the analysis of the energy consumption of forging machines, for the purpose of optimization. This study focuses on the amount of energy lost due ...
A FE Billet Model and a Spring-Mass-Damper Model for the Simulation of Dynamic Forging Process: Application to a Screw Press Communication avec acteMULL, Jean-François; DURAND, Camille; BAUDOUIN, Cyrille; BIGOT, Régis (Springer International Publishing, 2021-07)In forging processes, the determination of blow efficiency is very important, as it quantifies the part of the stroke energy actually transmitted to the billet. Thus, forging processes should be deeply analyzed in order ...
Communication avec acteMULL, Jean-François; DURAND, Camille; BAUDOUIN, Cyrille; BIGOT, Régis; BORSENBERGER, Marc; BORSENBERGER, Marc (AIP Publishing, 2019-07)The increasing use of superalloys in the industry brings new issues to forging manufacturers concerning Finite Element analysis of the forming process. Once we consider high performing materials, significant differences ...
Communication avec acteDURAND, Camille; FREUND, Ludovic; BAUDOUIN, Cyrille; GUÉRIN, Jean Dominique; BIGOT, Régis (S.MART (AIP PRIMECA), 2021-04)De nos jours, les simulations numériques sont de plus en plus utilisées dans l’industrie de la forge, et leur prédictibilité est validée grâce à des comparaisons avec des campagnes expérimentales. Il arrive cependant parfois ...
Communication avec acteDURAND, Camille; FREUND, Ludovic; BAUDOUIN, Cyrille; BIGOT, Régis; GUÉRIN, Jean-Dominique (University of Liege, 2021-04)Nowadays, numerical simulations are more and more used in forging industry, and their predictability is validated through a comparison with experiments. But sometimes simulations and experiments provide significantly ...