A5090407515- Metallurgy and Material Forming
- Aluminum Alloy Microstructure Properties
- Microstructure and Mechanical Properties of Steels
- Aluminum Alloys Composites Properties
- Metal Alloys Wear and Properties
- Metal Forming Simulation Techniques
- Microstructure and mechanical properties
- Additive Manufacturing and 3D Printing Technologies
- Innovations in Concrete and Construction Materials
- Metallurgical Processes and Thermodynamics
- Thermodynamic and Structural Properties of Metals and Alloys
- Powder Metallurgy Techniques and Materials
- Metallurgy and Cultural Artifacts
- Advanced Surface Polishing Techniques
- Tunneling and Rock Mechanics
- Manufacturing Process and Optimization
- Magnesium Alloys: Properties and Applications
- Additive Manufacturing Materials and Processes
- Bone Tissue Engineering Materials
- Computational Fluid Dynamics and Aerodynamics
- Geotechnical and Geomechanical Engineering
- Textile materials and evaluations
- Industrial Engineering and Technologies
- Mechanical Engineering and Vibrations Research
- Gas Dynamics and Kinetic Theory
Laboratoire de Conception Fabrication Commande
2007-2023
École nationale supérieure d'arts et métiers
2009-2023
Université de Lorraine
2020-2022
HESAM Université
2020-2022
United States Air Force Research Laboratory
2021
ParisTech
2012-2014
Human Technopole
2014
Laboratoire d'Étude des Microstructures et de Mécanique des Matériaux
2014
Laboratoire Génie Industriel
2008
École Nationale Supérieure d'Architecture Montpellier
2008
Process control in forging industry is essential to ensure a better quality of the product with lower cost at end manufacturing process. To process, number key parameters must be monitored prevent or plan deviations. This paper will illustrate how variation process parameter can create specifications deviations and influence final state. The illustration work done on part obtained via hot forging. An analysis made such as geometry, by varying values previously determined from created...
Based on several years of research, this paper presents some approaches industrial installation thixoforging steel with an important potential innovative technology. The possibility Thixoforging industrialization makes it possible to consider new components production. From billet final part complex shape obtained in one step, “keys” are developed as heating system, transfer and die design.
Steel thixoforging process combines the advantages of performing parts having highly complex shapes and good mechanical properties. These result from shear thinning flow behaviour semi-solids due to microstructure changes during material deformation. Many parameters such as steel grade, raw speed, slug temperature, tool temperature influence process. In this work, we are interested in analysing thermal conditions well ram speed on final parts. To do so, thixo-extrusion tests a high hydraulic...
Through different papers, authors shown that the influence of thermal exchanges was a first order parameter on semi‐solid steel behaviour, and certainly for every metallic materials. These hide other parameters effect like, example, strain rate influence. This paper tries to determine these two by using new extrusion device hydraulic press. tools conception annihilated decrease punch speed before stopping permitted have constant during experiment. work also deals with homogeneous flow...
The present paper focuses the modelling and simulation of a direct thixoextrusion test achieved on C38 semi-solid steel. Many parameters related to thermal, mechanical, material features are involved but currently unknown. Consequently validate simulation, it is important get various experimental informations during correlate them with simulated results. In previous (Becker et al, 2008), force-displacement curve, temperature within die, macro micro structure obtained for different process...
The deformation behavior of semi-solid aluminum alloy is strongly dependent on the microstructure. This paper illustrates several experimental research works concerning thixoextrusion 7075 which was carried out at “Arts et Métiers ParisTech” Metz. Inductive re-heating billet method used in order to obtain target liquid fraction for thixoextrusion. To minimize heat losses, a sample obtained from direct extruded bar inserted die reheating semisolid state and During process, temperature...
The fields of industrial applications the thixoforging applied to steels remain be set as more conditions most suitable materials, dimensional limits, limitations associated with tooling, heating means, etc.To in good conditions, must have low melting temperatures and a temperature slope achieve complete that allows use less specific means.This article presents results thixo-extruded tubes C05 steel grade, carbon grade. These experimental tests flashless forging process on screw press. In...
The innovative EPITHER process makes it possible to produce massive C/Thermoplastic composite parts with oriented continuous fibres in order meet specific mechanical loading constraints for structural parts. This fibre orientation allows, as the case of forging pull-outs, increase strength product. Composite must also contribute reduction CO2 emissions by reducing weight mobile systems, particularly those motion power transmission. consists two or three steps, preforming necessarily...
One of the common problems in forging processes is lack key process parameters control, as well their identification. Certain controlled exist, such temperature or stroke length, which are usually identified and through a systematic approach. Their selection depends particularly on part to produce customer’s constraints, rather than rational In this paper, methodology proposed select parameters. There some methodologies already DMAIC, used determine control influences desired specifications....
Isothermal ELASTOMAT measurements are made on age-hardenable AlZnMg alloys. The connection between the behaviour of macroscopic Young's modulus and formation precipitates is investigated. During isothermal ageing below 20 °C typical saturation-like slopes obtained, which can be fitted to Johnson-Mehl-Avrami equation. matrix depletion, changes in volume fraction forming coherent Guinier-Preston zones composition GP regarded discussed as cause modulus. estimated dependence Mg content. Es wird...
View Video Presentation: https://doi.org/10.2514/6.2021-0313.vid The realization of practical, large integrated, bonded composite structures have long been a goal the aircraft design community. One enabler for this is ability to robustly bond skins stiffeners. Typically, accomplished with T-joints manufactured using unidirectional prepreg material formed into T shape by placing L-bend shapes back back. These interface suffer from problematic delamination and manufacturing issues associated...
It is necessary to well understand the microstructure evolution during high speed heating and forming for steel thixoforging, since it determines thixotropic flow behavior of materials in semi-solid state. A new situ technique - temperature Confocal Laser Scanning Microscopy (CLSM) was developed used studying directly at where state could not be preserved by quenching experiments conventional 2D characterization. Several grades (C38LTT, 100Cr6 M2) were investigated from as-received finally...