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Anthonin DEMARBAIX
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Prediction of local sintering in laser beam machining of green Y-TZP ceramic
20 mai 2020, Ducobu, François; Rivière-Lorphèvre, Edouard; DEMARBAIX, Anthonin; Lauwers, Berth,
- HE Condorcet
,
- Article scientifique
Article scientifique
Abstract : "Laser beam machining of Y-TZP engineering ceramic material is carried out in green stage to increase the material removal rate. The generation of hot spots may cause local sintering of the ceramic material leading to a decrease of the mechanical properties of the final sintered component. This paper presents the implementation of alternative laser beam paths to reduce the hot spots ...
Influence of Conventional Machining on Chemical Finishing of Ti6Al4V Electron Beam Melting Parts
26 avril 2020, Spitaels, Laurent; Ducobu, François; DEMARBAIX, Anthonin; Rivière-Lorphèvre, Edouard; Dehombreux, Pierre,
- HE Condorcet
,
- Acte de conférence ou de colloque
Acte de conférence ou de colloque
"Additive manufacturing is feeding great hopes for future developments in fields such as aeronautical, biomedical and rapid tooling industrssssies. However, limitations are still restricting its use to make prototypes and hampering mass production. In the case of titanium alloy printing (e.g. Ti6Al4V) with the EBM (Electron Beam Melting) process, the major obstacle to use parts directly after printing ...
Chemical etching as a finishing process for electron beam melting (EBM) parts
02 juillet 2019, Dolimont, Adrien; DEMARBAIX, Anthonin; Ducobu, François; Rivière-Lorphèvre, Edouard,
- HE Condorcet
,
- Acte de conférence ou de colloque
Acte de conférence ou de colloque
"The goal of this research is to analyze the impact of chemical etching on parts produced by electron beam melting. Given that the surface conditions are poor (Ra between 25 to 35 µm), an enhancement of these is asked. Dimensional and surface measurements were realized on conceived parts. Different exposure times were tested. The impact of these times on surface quality was evaluated. To help ...
Calibration method of hybrid machining process in the green ceramic combining micro-milling and laser machining
2019, DEMARBAIX, Anthonin; Rivière-Lorphèvre, Edouard; Ducobu, François; Dolimont, Adrien; Petit, Fabrice; Juste, Enrique,
- HE Condorcet
,
- Acte de conférence ou de colloque
Acte de conférence ou de colloque
Contribution to "euspen’s 19th International Conference & Exhibition, Bilbao, ES, June 2019"
Abstract :
"The requirements for quality amelioration of engineered products are increasingly stringent, and specially when the miniaturization and difficult-to-machine materials are considered. The development of hybrid machining processes (HMPs) answers this problem.
Indeed, HMPs are variants of ...
Behaviour of pre-sintered Y-TZP during machining operations: Determination of recommended cutting parameters
06 février 2018, DEMARBAIX, Anthonin; Rivière-Lorphèvre, Edouard; Ducobu, François; Filippi, Enrico; Petit, Fabrice; Preux, Nicolas,
- HE Condorcet
,
- Article scientifique
Article scientifique
"In this paper,the NF E 66-520-5 standard, dedicated to the determination ofthe optimal cutting parameters suitable for ductile material, is applied to the pre-sintered ceramic Y-TZP. The objective of the standard is to calculate the specific cutting energy of the forces created between the chosen tool and material during machining operation. Specific cutting energy is the energy required to remove ...