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Anthonin DEMARBAIX
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Voici les éléments 11-20 de 22
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Finite element modelling of the Taylor impact test in 3D with the Coupled Eulerian-Lagrangian method
2021, Ducobu, François; DEMARBAIX, Anthonin; Pantalé, Olivier,
- HE Condorcet
,
- Acte de conférence ou de colloque
Acte de conférence ou de colloque
Contribution to ESAFORM2021.
Abstract :
"When modelling a cutting operation, the constitutive model of the machined material is one of the key parameters to obtain accurate and realistic results. Up to now, the Johnson-Cook model is still the most used, even if an increasing number of models, such as the Hyperbolic TANgent (TANH) model, were introduced last years to overcome its limitations and ...
The CDIO approach in a FabLab activity for engineering education promotion
2021, Wattiaux, David; Leroy, Cédric; Olivier, Bryan; DEMARBAIX, Anthonin,
- HE Condorcet
,
- Acte de conférence ou de colloque
Acte de conférence ou de colloque
Abstract : "The number of FabLabs has been steadily increasing over the last few years. Their main objectives are to sensitize its public on Science, Technology, Engineering, and Math (STEM) education through the digital manufacturing chain of an object and to allow the large public to make their own objects. Through, the increasing popularization of these advanced technologies, it becomes more ...
Experimental investigation on green ceramic machining with nanosecond laser source
03 décembre 2020, DEMARBAIX, Anthonin; Ducobu, François; Juste, Enrique; Petit, Fabrice; Duterte, Charles; Rivière-Lorphèvre, Edouard,
- HE Condorcet
,
- Article scientifique
Article scientifique
Abstract : "Yttrium oxide tetragonal zirconia polycrystals (Y-TZP) is an inert bioceramic used for many bio-implantable applications that request a high accuracy which is difficult to achieve with the current technologies. Laser machining of hard ceramic is difficult because the interaction of the laser beam with the material can lead to microcracks and surface modifications of the microstructure. ...
A new manufacturing chain for ceramic shaping: sequential combination of milling and laser machining in green ceramic
juin 2020, DEMARBAIX, Anthonin; Ducobu, François; Petit, François; Rivière-Lorphèvre, Edouard,
- HE Condorcet
,
- Acte de conférence ou de colloque
Acte de conférence ou de colloque
Contribution to euspen’s 20th International Conference & Exhibition (Geneva, CH, June 2020)
Abstract :
"The ceramic microcomponents have very interesting mechanical and thermal properties in an extreme environment such as a high temperature, a corrosive environment, etc. Unfortunately, the principal limitation of ceramic material usage is its shaping because of the brittlness of the material. ...
Green Ceramic Machining: Influence of the Cutting Speed and the Binder Percentage on the Y-TZP Behavior
21 mai 2020, DEMARBAIX, Anthonin; Ducobu, François; Preux, Nicolas; Petit, Fabrice; Rivière-Lorphèvre, Edouard,
- HE Condorcet
,
- Article scientifique
Article scientifique
Abstract : "The demand for inert bioceramics is always increasing in the dental field. Yttrium oxide tetragonal zirconia polycrystals (Y-TZP) are oxide ceramics which are currently used because of their interesting mechanical properties due to a toughening transformation. Industrially speaking, machining of the ceramic before sintering (green body) is very common because it allows a better productivity ...
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 ...