Additive Layer Manufacturing using Metal Deposition
TypeArticles dans des revues avec comité de lecture
Among the additive layer manufacturing techniques for metals, those involving metal deposition,including laser cladding/Direct Energy Deposition (DED, with powder feeding) or Wire and ArcAdditive Manufacturing (WAAM, with wire feeding), exhibit several attractive features. For instance,one can mention high mass efficiency (50–80% for LMD, 100% for WAAM), large build rates (morethan 100 cm3/h), sound microstructures with a limited amount of porosities, and the ability to buildgraded or multimaterials. Even though corresponding processes have been developed a rather longtime ago, there is still an important demand for research work in various topics such as deposition ofnovel or graded materials, postprocessing, and wear behavior of deposited materials.The current Special Issue, including six contributions, aims at presenting recent and original workdedicated to all these aspects, with a more specific focus on coatings than on 3D structures.
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Experimental and numerical analysis of the selective laser sintering (SLS) of PA12 and PEKK semi-crystalline polymers PEYRE, Patrice; ROUCHAUSSE, Yann; DEFAUCHY, Denis; REGNIER, Gilles (ELSEVIER, 2015)A dual experimental-numerical approach was carried out to estimate thermal cycles and resulting fusion depths obtained during the selective laser sintering (SLS) of two polymers: PA12 and PEKK. The validation of thermal ...
Analysis and possible estimation of keyhole depths evolution, using laser operating parameters and material properties FABBRO, Rémy; DAL, Morgan; PEYRE, Patrice; COSTE, Frédéric; SCHNEIDER, Matthieu; GUNENTHIRAM, V (Laser Institute of America, 2018)The authors propose an analysis of the effect of various operating parameters on the keyhole depth during laser welding. The authors have developed a model that uses the analysis of the thermal field obtained in 2D geometry, ...
Analysis of laser–melt pool–powder bed interaction during the selective laser melting of a stainless steel GUNENTHIRAM, Valérie; PEYRE, Patrice; SCHNEIDER, Matthieu; DAL, Morgan; COSTE, Frédéric; FABBRO, Rémy (Laser Institute of America, 2017)The laser powder bed fusion (LPBF) or powder-bed additive layer manufacturing process is now recognized as a high-potential manufacturing process for complex metallic parts. However, many technical issues are still to ...
Multiphysics Simulation and Experimental Investigation of Aluminum Wettability on a Titanium Substrate for Laser Welding-Brazing Process DAL, Morgan; PEYRE, Patrice (MDPI, 2017)The control of metal wettability is a key-factor in the field of brazing or welding-brazing. The present paper deals with the numerical simulation of the whole phenomena occurring during the assembly of dissimilar alloys. ...
PEYRE, Patrice; DAL, Morgan; POUZET, Sébastien; CASTELNAU, Olivier (Laser Institute of America, 2017)The laser metal deposition (LMD) laser technique is a free-form metal deposition process, which allows generating near net-shape structures through the interaction of a powder stream and a laser beam. A simplified numerical ...