• français
    • English
    français
  • Login
Help
View Item 
  •   Home
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)
  • View Item
  • Home
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Experimental and Numerical Analysis of Gas/Powder Flow for Different LMD Nozzles

Type
Articles dans des revues avec comité de lecture
Author
FERREIRA, Elise
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
DAL, Morgan
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
COLIN, Christophe
1157 Centre des Matériaux [MAT]
MARION, Guillaume
300457 SAFRAN Group
GORNY, Cyril
1157 Centre des Matériaux [MAT]
COURAPIED, Damien
300457 SAFRAN Group
GUY, Jason
1157 Centre des Matériaux [MAT]
PEYRE, Patrice
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/19445
DOI
10.3390/met10050667
Date
2020
Journal
Metals

Abstract

The Laser Metal Deposition (LMD) process is an additive manufacturing method, which generates 3D structures through the interaction of a laser beam and a gas/powder stream. The stream diameter, surface density and focal plan position affect the size, efficiency and regularity of the deposit tracks. Therefore, a precise knowledge of the gas/powder streams characteristics is essential to control the process and improve its reliability and reproducibly for industrial applications. This paper proposes multiple experimental techniques, such as gas pressure measurement, optical and weighting methods, to analyze the gas and particle velocity, the powder stream diameter, its focal plan position and density. This was carried out for three nozzle designs and multiple gas and powder flow rates conditions. The results reveal that (1) the particle stream follows a Gaussian distribution while the gas velocity field is closer to a top hat one; (2) axial, carrier and shaping gas flow significantly impact the powder stream’s focal plan position; (3) only shaping gas, powder flow rates and nozzle design impact the powder stream diameter. 2D axisymmetric models of the gas and powder streams with RANS turbulent model are then performed on each of the three nozzles and highlight good agreements with experimental results but an over-estimation of the gas velocity by pressure measurements.

Files in this item

Name:
PIMM_M_2020_FERREIRA.pdf
Size:
4.370Mb
Format:
PDF
Description:
Article
View/Open

Collections

  • Autres équipes
  • Laboratoire Procédés et Ingénierie en Mécanique et Matériaux (PIMM)

Related items

Showing items related by title, author, creator and subject.

  • Study of laser interaction in water flow confinement at high repetition rate 
    BERTHE, Laurent; COURAPIED, Damien; EL KARNIGHI, Samy; PEYRE, Patrice; GORNY, Cyril; ROUCHAUSSE, Yann (Laser Institute of America, 2017)
    This paper presents a study on the confined interaction with water flow for two successive laser pulses. The dynamic of the renewal of water films after shock produced by the laser is observed using a high speed camera. ...
  • 3D Laser Shock Peening – A new method for the 3D control of residual stresses in Selective Laser Melting 
    KALENTICS, Nikola; BOILLAT, Eric; PEYRE, Patrice; GORNY, Cyril; KENEL, Christoph; LEINENBACH, Christian; JHABVALA, Jamasp; E. LOGÉ, Roland (Elsevier, 2017)
    This paper describes a hybrid additive manufacturing process – 3D Laser Shock Peening (3D LSP), based on the integration of Laser Shock Peening (LSP) with selective laser melting (SLM). The well-known tensile residual ...
  • Etude thermique des bains liquides et son effet sur l’état de surface des pièces fabriquées par le procédé de Fabrication Directe par Projection Laser (FDPL) 
    GHARBI, Myriam; PEYRE, Patrice; GORNY, Cyril; FABBRO, Rémy; MULLER, Maryse; CARIN, Muriel; MORVILLE, Simon; CARRON, Denis; LE MASSON, Philippe (Société Française de Thermique / Congrès Français de Thermique - Thermique en conditions extrêmes, 29 mai - 1er juin 2012, Bordeaux, 2012)
    La fabrication directe par projection laser (FDPL) est un procédé de prototypage rapide et de fabrication des petites séries de pièces complexes, par simple interaction entre un faisceau laser, un substrat, et une poudre ...
  • Effect of laser shock peening on the high temperature oxidation resistance of titanium 
    KANJER, A; LAVISSE, L; OPTASANU, V; BERGER, P; GORNY, Cyril; PEYRE, Patrice; HERBST, F; HEINTZ, O; GEOFFROY, N.; MONTESIN, T; MARCO DE LUCAS, M.C. (Elsevier, 2017)
    The effect of laser shock peening on the high temperature oxidation resistance of commercial pure titanium at high temperature (700 °C) was studied in long-time (3000 h) exposure under dry air. A reduction of the gain mass ...
  • Influence of a pulsed laser regime on surface finish induced by thedirect metal deposition process on a Ti64 alloy 
    GHARBI, Myriam; PEYRE, Patrice; GORNY, Cyril; MORVILLE, Simon; LE MASSON, Philippe; CARRON, Denis; FABBRO, Rémy; CARIN, Muriel (ELSEVIER, 2014)
    tThe direct metal deposition (DMD) laser technique is a free-form metal deposition process, which allowsgenerating a prototype or small series of near net-shape structures. Despite numerous advantages, oneof the most ...

Browse

All SAMCommunities & CollectionsAuthorsIssue DateCenter / InstitutionThis CollectionAuthorsIssue DateCenter / Institution

Newsletter

Latest newsletterPrevious newsletters

Statistics

Most Popular ItemsStatistics by CountryMost Popular Authors

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales

ÉCOLE NATIONALE SUPERIEURE D'ARTS ET METIERS

  • Contact
  • Mentions légales