• 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.

Simplified numerical model for the laser metal deposition additive manufacturing process

Article dans une revue avec comité de lecture
Author
PEYRE, Patrice
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
DAL, Morgan
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
POUZET, Sébastien
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]
CASTELNAU, Olivier
86289 Laboratoire Procédés et Ingénierie en Mécanique et Matériaux [PIMM]

URI
http://hdl.handle.net/10985/12175
DOI
10.2351/1.4983251
Date
2017
Journal
Journal of Laser Applications

Abstract

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 model was carried out to predict layer heights together with temperature distributions induced by the (LMD) process on a titanium alloy, and a metal matrix composite. Compared with previously developed models, this simplified approach uses an arbitrary Lagrangian Eulerian free surface motion directly dependent on the powder mass feed rate Dm. Considering thin wall builds of Ti-6Al-4V titanium alloy, numerical results obtained with comsol 4.3 Multiphysics software were successfully compared with the experimental data such as geometrical properties of manufactured walls, fast camera molten pools measurements, and thermocouple temperature recordings in the substrate during the manufacturing of up to 10 LMD. Even if the model did not consider coupled hydraulic-thermal aspects, it provides a more realistic local geometrical description of additive layer manufacturing walls than simpler thermal models, with much shorter calculation times than more sophisticated approaches considering thermocapillary fluid flow. In a second step, microstructures (equiaxed or columnar) were predicted on Ti-6Al-4V walls using microstructural map available in the literature, and local thermal gradients G (K/m) and solidification rate R (m/s) provided by the FE calculation near the solidification front. © 2017 Laser Institute of America.

Files in this item

Name:
PIMM-JLA-PEYRE-2017.pdf
Size:
2.492Mb
Format:
PDF
View/Open

Collections

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

Related items

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

  • Generation and characterization of T40/A5754 interfaces with lasersPatrice 
    Article dans une revue avec comité de lecture
    PEYRE, Patrice; BERTHE, Laurent; DAL, Morgan; POUZET, Sébastien; SALLAMAND, Pierre; TOMASHCHUK, Iryna (Elsevier, 2014)
    Laser-induced reactive wetting and brazing of T40 titanium with A5754 aluminum alloy with 1.5 mm thickness was carried out in lap-joint configuration, with or without the use of Al5Si filler wire. A 2.4 mm diameter laser ...
  • Generation and characterization of T40/A5754 interfaces with lasers 
    Article dans une revue avec comité de lecture
    PEYRE, Patrice; BERTHE, Laurent; DAL, Morgan; POUZET, Sébastien; SALLAMAND, Pierre; TOMASHCHUK, Iryna (Elsevier, 2014)
    Laser-induced reactive wetting and brazing of T40 titanium with A5754 aluminum alloy with 1.5 mm thickness was carried out in lap-joint configuration, with or without the use of Al5Si filler wire. A 2.4 mm diameter laser ...
  • Additive layer manufacturing of titanium matrix composites using the direct metal deposition laser process 
    Article dans une revue avec comité de lecture
    POUZET, S; PEYRE, P; GORNY, C.; CASTELNAU, Olivier; BAUDIN, T; BRISSET, F; COLIN, C; GADAUD, P (Elsevier, 2016)
    Titanium Matrix Composites (TMC's) containing various volume fractions of (TiB+TiC) particles have been deposited from powder feedstocks consisting of a blend of pre-alloyed (Ti-6Al-4V+B4C) powders, using the direct metal ...
  • Laser-induced plume investigated by finite element modelling and scaling of particle entrainment in laser powder bed fusion 
    Article dans une revue avec comité de lecture
    MAYI, Yaasin; DAL, Morgan; PEYRE, Patrice; BELLET, Michel; METTON, Charlotte; MORICONI, Clara; FABBRO, Remy (IOP Publishing, 2019)
    Although metal vaporisation has been observed in several laser processes such as drilling or welding, vapour plume expansion and its induced side effects are not fully understood. Especially, this phenomenon is garnering ...
  • Analysis and possible estimation of keyhole depths evolution, using laser operating parameters and material properties 
    Article dans une revue avec comité de lecture
    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, ...

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