Modeling the interaction of laser radiation with powder bed at selective laser melting

被引：164

作者：

Gusarov, A. V. ^{[1
]}

Smurov, I. ^{[1
]}

机构：

[1] ENISE, DIPI Lab, F-42023 St Etienne, France

来源：

LASER ASSISTED NET SHAPE ENGINEERING 6, PROCEEDINGS OF THE LANE 2010, PART 2 | 2010年 / 5卷

关键词：

selective laser melting; powder bed; radiation transfer; heat transfer; cappilary stability; FINITE-ELEMENT-ANALYSIS; THERMAL-CONDUCTIVITY; HEAT-TRANSFER; TEMPERATURE; PREDICTION; COMPONENTS; LAYER;

D O I：

10.1016/j.phpro.2010.08.065

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Obtaining uniform single vectors well attached to the substrate is necessary and sufficient for fabrication of complex-shape parts of high quality by selective laser melting. The temperature distribution in the laser/powder interaction zone and the shape of the melt pool is numerically calculated by the proposed model of coupled radiation and heat transfer applicable to single vectors. The analysis of the capillary stability of the segmental cylinder applied to the calculated melt pool estimates the stability of the process depending on the scanning velocity, powder layer thickness, and the material optical and thermal properties. (C) 2010 Published by Elsevier B.V.

引用

收藏

页码：381 / 394

页数：14

相关论文

共 25 条

[1] Numerical prediction of temperature and density distributions in selective laser sintering processes [J].

Bugeda, Gabriel ;

Cervera, Miguel ;

Lombera, Guillermo .

RAPID PROTOTYPING JOURNAL, 1999, 5 (01) :21-26

[2] Experimental and theoretical modeling of the effective thermal conductivity of rough steel spheroid packed beds [J].

Buonanno, G ;

Carotenuto, A ;

Giovinco, G ;

Massarotti, N .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2003, 125 (04) :693-702

[3]

CHANDRASEKHAR S, 1961, HYDRODYNAMIC HYDROMA, pCH10

[4] Modeling and experiments of laser cladding with droplet injection [J].

Choi, J ;

Han, L ;

Hua, Y .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2005, 127 (09) :978-986

[5] Rapid manufacturing of metal components by laser forming [J].

Costa Santos, Edson ;

Shiomi, Masanari ;

Osakada, Kozo ;

Laoui, Tahar .

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE, 2006, 46 (12-13) :1459-1468

[6] Radiative transfer in cylindrical threads with incident radiation [J].

Gouttebroze, P .

ASTRONOMY & ASTROPHYSICS, 2004, 413 (02) :733-743

[7] Normal-directional and normal-hemispherical reflectances of micron- and submicron-sized powder beds at 633 and 790 nm [J].

Gusarov, A. V. ;

Bentefour, E. H. ;

Rombouts, M. ;

Froyen, L. ;

Glorieux, C. ;

Kruth, J. -P. .

JOURNAL OF APPLIED PHYSICS, 2006, 99 (11)

[8] Heat transfer modelling and stability analysis of selective laser melting [J].

Gusarov, A. V. ;

Yadroitsev, I. ;

Bertrand, Ph. ;

Smurov, I. .

APPLIED SURFACE SCIENCE, 2007, 254 (04) :975-979

[9] Model of thermal conductivity in powder beds [J].

Gusarov, A. V. ;

Kovalev, E. P. .

PHYSICAL REVIEW B, 2009, 80 (02)

[10] Model of Radiation and Heat Transfer in Laser-Powder Interaction Zone at Selective Laser Melting [J].

Gusarov, A. V. ;

Yadroitsev, I. ;

Bertrand, Ph. ;

Smurov, I. .

JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME, 2009, 131 (07) :1-10