A geometrical and mechanistic generalized model for complex shape broaching of super alloy
Communication avec acte
Résumé
The aircraft engine disks are highly critical parts. It is required for blade assembly to obtain high quality slots after broaching. Because of the complexity of the slot shapes, different problems are induced such as the cutting geometry, the broach design and the difficulties to evaluate the forces applied on the tool. To deal with this problematic, this article presents a geometrical and mechanistic model taking into account the various geometrical parameters of a form broach (pitch, shift, profiles and cutting geometry of the half teeth) to determine the cutting forces. The methodology of the cutting edges discretization and an oblique cutting law have been used. Several simulations made with this generalized model are presented to understand the impacts of the variation of the tool’s geometrical parameters on the cutting forces evolution in order to improve the broaching of complex shape.
Fichier(s) constituant cette publication
Cette publication figure dans le(s) laboratoire(s) suivant(s)
Documents liés
Visualiser des documents liés par titre, auteur, créateur et sujet.
-
Article dans une revue avec comité de lectureLEGRAND, Côme; FROMENTIN, Guillaume; POULACHON, Gerard; RANCIC, Mickael (Springer Science and Business Media LLC, 2022-09-28)Burr size is a real issue in aeronautic for machining highly critical parts, such as broaching of turbine disks, it may affect the mechanical resistance of the part. However, the analysis and modelling of the burr formation ...
-
Article dans une revue avec comité de lecturePOISSENOT-ARRIGONI, Corentin; FROMENTIN, Guillaume; POULACHON, Gerard; MARCON, Bertrand; LEGRAND, Côme (MM Publishing, s.r.o., 2021)To reduce the size of exit burrs induced by broaching, it is possible to use a low value martyred part clamped to the functional one on the tool exit side. Thence, this research work deals with an in-situ analysis of the ...
-
Article dans une revue avec comité de lectureThis study deals with the thread milling process that is considered a complex machining technique due to its elaborated tool geometry and its tridimensional tool trajectory. It needed advanced research on the threading ...
-
Article dans une revue avec comité de lectureDENGUIR, Lamice; BESNARD, Aurélien; FROMENTIN, Guillaume; POULACHON, Gérard; ZHU, Xiaowen (Taylor & Francis, 2014)One of the criteria mastering the choice of a cutting tool is its wear resistance. In this paper, tool life is treated: on one hand, the study aims to classify the performances of the edge preparations in terms of ...
-
Article dans une revue avec comité de lectureCAMPOCASSO, Sébastien; COSTES, Jean-Philippe; BISSEY BRETON, Stéphanie; 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 ...