Analysis and Modelling of the Contact Radius Effect on the Cutting Forces in Cylindrical and Face Turning of Ti6Al4V Titanium Alloy
Communication avec acte
Auteur
COSTES, Jean-Philippe 
DORLIN, Théo FROMENTIN, GuillaumeRésumé
Cutting forces are representative data to characterize machining operations.They have to be known to perform the part manufacturing. Therefore, cutting forces predictive models are useful and it is possible to optimize them by taking into account new parameters. Hence, this study deals with the geometrical modelling of tool-workpiece interaction and its influence on the cutting forces. The analysis focuses on convex contact radius between the machined part and the tool. Experiments are based on cylindrical and face turning of Ti6Al4V titanium alloy. The results highlight a significant influence of contact conditions on ploughing mechanisms, and consequently on the cutting forces intensity. This phenomenon is taken into account inthe suggested models, providing a better accuracy of cutting forces modelled.
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Communication avec acte; ; ;DORLIN, Théo; FROMENTIN, Guillaume (Elsevier, 2016)
Machining of difficult-to-cut materials like Ti6Al4V titanium alloy leads to significant flank wear on the cutting tool. In order to ensure the respect of final part specifications, flank wear has to be controlled. In ...
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Article dans une revue avec comité de lecture;DORLIN, Théo; FROMENTIN, Guillaume (Springer Verlag, 2016)
Current constraints on aeronautical parts have led to the introduction of materials like titanium alloys as well as new part geometries featuring large dimensions and reduced thickness. Inappropriate cutting forces during ...
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Communication avec acte; ;DORLIN, Théo; FROMENTIN, Guillaume (2016)
Force modelling is a major research topic in machining. Several approaches are used to face with the different needs. Mechanistic models appear to be an easier and rapid way for computing cutting forces; nevertheless they ...
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Communication avec acteRANCHIN, Lucas; VIPREY, Fabien; FROMENTIN, Guillaume; MONTEIRO, Eric; LORONG, Philippe; ; DORLIN, Théo (SSRN, 2023-12-11)
The understanding of phenomena related to machining processesintheaerospace industry isstill the subject of study intheresearch community. This is due to the constrained geometric tolerances to ensure optimal performance ...
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Article dans une revue avec comité de lecture; ; ;FROMENTIN, Guillaume; POULACHON, Gerard (Elsevier, 2015)
The knowledge of cutting forces is of prime importance to ensure the success of cutting operations, the desired properties of the machined parts and therefore the functionality of the workpieces. Edge discretisation is one ...