Erratum: “Transient dynamics and stability of keyhole at threshold in laser powder bed fusion regime investigated by finite element modeling” [J. Laser Appl. 33, 012024 (2021)]
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Article dans une revue avec comité de lectureMAYI, Yaasin A.; PEYRE, Patrice; BELLET, Michel; METTON, Charlotte; MORICONI, Clara; FABBRO, Remy; DAL, Morgan (Laser Institute of America, 2021)A Finite element model is developed with a commercial code to investigate the keyhole dynamics and stability at keyhole threshold, a fusion regime characteristic to laser microwelding or to Laser Powder Bed Fusion. The ...
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Article dans une revue avec comité de lectureThermo-hydrodynamic phenomena which take place during laser welding or additive manufacturing processes as laser powder bed fusion, have been investigated for years, but recent advances in X-ray images and in situ analysis ...
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Absorptivity measurements during laser powder bed fusion of pure copper with a 1 kW cw green laser Article dans une revue avec comité de lectureNORDET, Guillaume; GORNY, Cyril; MAYI, Yaasin; DALIGAULT, Julien; DAL, Morgan; EFFERNELLI, A.; BLANCHET, E.; COSTE, Frédéric; PEYRE, Patrice (Elsevier Ltd, 2021-10)A 1 kW CW green laser source operating at 515 nm was used to investigate the absorptivity of pure copper powder beds and pure copper substrates. Various interaction regimes were considered, ranging from the solid and/or ...
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Article dans une revue avec comité de lectureGUNENTHIRAM, Valérie; PEYRE, Patrice; COSTE, Frédéric; FABBRO, Rémy; DAL, Morgan; SCHNEIDER, Matthieu (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 ...