Parcourir Sciences Et Techniques par type de document "Acte de conférence ou de colloque"
Voici les éléments 1-12 de 12
-
Binder influence on green ceramic machining by means of milling and laser machining
06 septembre 2021, DEMARBAIX, Anthonin
; Ducobu, François; Preux, Nicolas; Petit, Fabrice; Rivière-Lorphèvre, Edouard, HE Condorcet
Acte de conférence ou de colloque"The micro manufacturing of ceramic components is technologically challenging especially when complex shapes and micro features are required. A hybrid manufacturing chain is developed for non-sintered(green) blanks machined using sequentially a cutting tool and a laser source. During the preparation of the green blank, a binder is added to the powder to improve compaction. The amount of binder can ... -
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 colloqueContribution 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 ... -
The CDIO approach in a FabLab activity for engineering education promotion
Acte de conférence ou de colloqueAbstract : "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 ... -
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"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 ... -
Development of a novel benchmark artifact for Additive Manufacturing processes
10 juin 2021, Spitaels, Laurent; Rivière-Lorphèvre, Edouard; DEMARBAIX, Anthonin; Ducobu, François, HE Condorcet
Acte de conférence ou de colloque" This article aims to make a review of the existing benchmark artifacts and to summarize the main requirements chosen by authors. From this state of the art, a new benchmark artifact is proposed by adapting an existing one to fulfil its missing characteristics. Measurements possibilities in terms of dimensions are enumerated and organized using ISO 286 dimensional intervals as presented in the ... -
Development of the hybrid sequential machining: laser machining and milling
2016, DEMARBAIX, Anthonin; Rivière-Lorphèvre, Edouard; Ducobu, François; Filippi, Enrico; Petit, Fabrice; Preux, Nicolas, HE Condorcet
Acte de conférence ou de colloque"The aims of this paper is to study the advantages and disadvantages of laser micro-machining and the micro-milling. The final goal is to couple these processes in the same structure. The sequential hybrid process is subtractive-subtractive it combines the laser u-machining and the u-milling. The samples are machined with the two processes to compare the dimensional tolerance and the geometrical ... -
Dimensional and geometrical performance assessment of two FDM printers using a benchmark artifact
03 juin 2022, Spitaels, Laurent; Rivière-Lorphèvre, Edouard; DEMARBAIX, Anthonin; Thielens, Vincent; Ducobu, François, HE Condorcet
Acte de conférence ou de colloque"In this article, dimensional and geometrical performances of two Fused Deposition Modelling (FDM) printers with Cartesian architecture (Ultimaker S3 and Intamsys FUNMAT HT) are compared using an original benchmark artifact design. Five parts were printed on each printer in ABS. Five other parts were also produced with the Ultimaker S3 in PLA to show the influence of material choice on the printer’s ... -
Finite element modelling of the Taylor impact test in 3D with the Coupled Eulerian-Lagrangian method
Acte de conférence ou de colloqueContribution 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 Hybrid Machining of Ceramic: The choice of production stage
30 mai 2017, DEMARBAIX, Anthonin; Rivière-Lorphèvre, Edouard; Ducobu, François; Filippi, Enrico; Preux, Nicolas, HE Condorcet
Acte de conférence ou de colloqueContribution to "Euspen’s 17th International Conference & Exhibition, Hannover, DE, May 2017". Abstract : "The demand for micro products has increased gradually since last decades in various areas, requiring the development of micro manufacturing processes. Micro manufacturing is characterized by the size of functional features (smaller than 10 um), a high precision, a good surface finishing and ... -
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"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 ... -
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 colloqueContribution 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. ... -
Uso do critério tsai-wu para avaliação de danos em cilindros tipo iv para armazenamento de hidrogênio.
août 2024, Lazaro Batista, Marcos; de Oliveira, Lucas Antonio; Rodrigues, Geovani; DEMARBAIX, Anthonin; Diaz Méndez, Yohan Ali; Cunha, Sebastião Simões Jr., HE Condorcet
Acte de conférence ou de colloqueAbstract en anglais : "When considering the replacement of fossil fuels, hydrogen emerges as a promising clean fuel alternative. However, significant challenges arise when attempting to store it in its gaseous state. To accommodate a substantial mass of hydrogen, storage necessitates high pressures. Desired characteristics for hydrogen storage tanks include high tensile strength, low density, ...