Edouard Ducroux, PhD student at LaBoMaP, will defend his thesis on: "The analysis and development of a generalized stress model for high-performance milling of Inconel 718 produced by additive manufacturing" on Thursday, December 17, 2020.
Management and partners
His thesis is supervised by Guillaume Fromentin, David Prat, Fabien Viprey, and Alain D’Acunto.
His thesis work is the result of a collaboration between Ariane Group's engine development center and the Arts et Métiers research laboratories Arts et Métiers in Cluny and LEM3 in Metz.
Members of the jury
Rapporteurs
- Mr. Sylvain LAVERNHE, University Professor, LURPA, Paris-Saclay University
- Mr. Mickaël FONTAINE, Senior Lecturer, FEMTO-ST, ENSMM
Examiners
- Mr. Emmanuel DUC, University Professor, SIGMA Clermont
- Mr. Guillaume FROMENTIN, University Professor, LaBoMaP, Arts et Métiers
- Mr. David Prat, PRAG Doctor, LaBoMaP, Arts et Métiers
- Mr. Fabien VIPREY, Senior Lecturer, Labomap, Arts et Métiers
Guests
- Mr. Alain D’ACUNTO, Senior Lecturer, LEM3, Arts et Métiers
- Ms. Elsa CROISEAU, Engineer, Ariane Group
- Mr. John-Fitzgerald LEFOULON, CNC Programmer, Ariane Group
Summary
Mastering the machining process for complex parts requires controlling cutting forces throughout the operation. This is why modeling these cutting forces has been a widely discussed topic in the scientific community for the past thirty years. However, the development of new manufacturing techniques, new tools, and new machining strategies requires optimizing previous models to make them compatible with these developments. This study focuses on analyzing an Inconel 718 alloy produced by additive manufacturing to assess its machinability. This analysis then makes it possible to define a machining strategy that optimizes the performance of the operation by reducing tool wear and machining times. Finally, a generalized model of the trajectory and cutting forces as a function of wear is proposed. The model is based on rigorous geometric modeling of the tool, taking into account its evolution as a function of wear, and the definition of a cutting law adapted to the edge/material combination studied. The methodologies developed in this way can be transposed to other alloys and other strategies in order to cover a large number of operations and part geometries.
Keywords
Inconel 718; Additive manufacturing; Trochoidal milling; Modeling; Tool wear.
