Soumissions récentes

  • Analyzing apparatus 

    14 juin 2022, Quenon, Alexandre; Demarbaix, Anthonin; Demaret, Benjamin, HE Condorcet
    "The invention relates to an apparatus configured to detect and measure in real time an electrical response from an electrical component exposed to ionizing radiation." Participation d'un chercheur de la HEPH-Condorcet mais le brevet est déposé par l'UMons :
  • Development of a standardized multiplex SSR kit for genotyping both goats and sheepPeer reviewedClosed access 

    03 novembre 2021, Spanoghe, Martin; Whannou, Habib Rainier Vihotogbe; De Kuijper, Camille; Dossa, Luc Hippolyte; Lanterbecq, Déborah, HE CondorcetCARAH
    Article scientifique
    "In this technical note, we report the development of a reliable standardized protocol based on the multiplex SSRPCR approach for genotyping the two small ruminant species, goats and sheep. The method is based on PCR conditions optimization allowing 12 informative microsatellites (SSR) markers to be co-amplified in two multiplex sets of 6 SSR markers, followed by a co-migration into one run onto a ...
  • Genetic Diversity Trends in the Cultivated Potato: A Spatiotemporal OverviewPeer reviewedOpen access 

    15 avril 2022, Spanoghe, Martin; Marique, Thierry; Nirsha, Alexandra; Esnault, Florence; Lanterbecq, Déborah, HE CondorcetCARAH
    Article scientifique
    Résumé des auteurs : Monitoring the change in genetic diversity over time and space in crop species is essential to facilitating further improvement. As the world’s most important tuber crop for human consumption, and an ideal candidate to help address global food security, the cultivated potato deserves in-depth study in this regard. In this overview, some aspects of spatiotemporal diversity ...
  • Genetic diversity and spatial structure of indigenous sheep population of Benin revealed by microsatellite markersPeer reviewedClosed access 

    12 août 2022, Whannou, Habib Rainier Vihotogbe; Spanoghe, Martin; Vanvanhossou, Sèyi Fridaïus Ulrich; Marique, Thierry; Lanterbecq, Déborah; Dossa, Luc Hippolyte, HE CondorcetCARAH
    Article scientifique
    "This study investigated the genetic variability existing within the indigenous sheep population of Benin. Hair samples from 681 unrelated sheep collected across the 10 phytogeographic zones of Benin were genotyped using a set of 12 microsatellite markers" Extrait de l'abstract
  • The CDIO approach in a FabLab activity for engineering education promotionPeer reviewedClosed access 

    2021, Wattiaux, David; Leroy, Cédric; Olivier, Bryan; Demarbaix, Anthonin, HE Condorcet
    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 ...
  • Development of a novel benchmark artifact for Additive Manufacturing processesPeer reviewedClosed access 

    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 ...
  • Green Ceramic Machining: Influence of the Cutting Speed and the Binder Percentage on the Y-TZP BehaviorPeer reviewedOpen access 

    21 mai 2020, Demarbaix, Anthonin; Ducobu, François; Preux, Nicolas; Petit, Fabrice; Rivière-Lorphèvre, Edouard, HE Condorcet
    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 ...
  • Green Ceramic Machining: Determination of the Recommended Feed Rate for Y-TZP MillingPeer reviewedOpen access 

    01 septembre 2021, Demarbaix, Anthonin; Mulliez, Marylou; Rivière-Lorphèvre, Edouard; Spitaels, Laurent; Duterte, Charles; Petit, Fabrice; Ducobu, François, HE Condorcet
    Article scientifique
    Abstract : "Manufacturing of advanced ceramic parts exhibiting complex geometries is laborious and expensive. Traditionally, the machining is carried out on a so-called ‘green ceramic’: a compact composed of ceramic powder held with the help of a binder. This difficulty is due not only to the composition of the material, but also to the lack of methods that determine optimal machining parameters. ...
  • Finite element modelling of the Taylor impact test in 3D with the Coupled Eulerian-Lagrangian methodPeer reviewedOpen access 

    2021, Ducobu, François; Demarbaix, Anthonin; Pantalé, Olivier, HE Condorcet
    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 ...
  • A new manufacturing chain for ceramic shaping: sequential combination of milling and laser machining in green ceramicPeer reviewedOpen access 

    juin 2020, Demarbaix, Anthonin; Ducobu, François; Petit, François; Rivière-Lorphèvre, Edouard, HE Condorcet
    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. ...
  • Calibration method of hybrid machining process in the green ceramic combining micro-milling and laser machiningPeer reviewedClosed access 

    2019, Demarbaix, Anthonin; Rivière-Lorphèvre, Edouard; Ducobu, François; Dolimont, Adrien; Petit, Fabrice; Juste, Enrique, HE Condorcet
    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 ...
  • The Hybrid Machining of Ceramic: The choice of production stagePeer reviewedClosed access 

    30 mai 2017, Demarbaix, Anthonin; Rivière-Lorphèvre, Edouard; Ducobu, François; Filippi, Enrico; Preux, Nicolas, HE Condorcet
    Acte de conférence ou de colloque
    Contribution 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 ...
  • Development of the hybrid sequential machining: laser machining and millingPeer reviewedClosed access 

    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 ...
  • Experimental investigation on green ceramic machining with nanosecond laser sourcePeer reviewedClosed access 

    03 décembre 2020, Demarbaix, Anthonin; Ducobu, François; Juste, Enrique; Petit, Fabrice; Duterte, Charles; Rivière-Lorphèvre, Edouard, HE Condorcet
    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. ...
  • Behaviour of pre-sintered Y-TZP during machining operations: Determination of recommended cutting parametersPeer reviewedClosed access 

    06 février 2018, Demarbaix, Anthonin; Rivière-Lorphèvre, Edouard; Ducobu, François; Filippi, Enrico; Petit, Fabrice; Preux, Nicolas, HE Condorcet
    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 ...
  • Prediction of local sintering in laser beam machining of green Y-TZP ceramicPeer reviewedOpen access 

    20 mai 2020, Ducobu, François; Rivière-Lorphèvre, Edouard; Demarbaix, Anthonin; Lauwers, Berth, HE Condorcet
    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 ...
  • Chemical etching as a finishing process for electron beam melting (EBM) partsPeer reviewedClosed access 

    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 ...
  • Influence of Conventional Machining on Chemical Finishing of Ti6Al4V Electron Beam Melting PartsPeer reviewedOpen access 

    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 ...
  • Binder influence on green ceramic machining by means of milling and laser machiningPeer reviewedOpen access 

    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 ...
  • Dimensional and geometrical performance assessment of two FDM printers using a benchmark artifactPeer reviewedClosed access 

    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 ...

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