Evolution of Direct Selective Laser Sintering of Metals

Francesco Cardaropoli; Fabrizia Caiazzo; Vincenzo Sergi

doi:10.4028/www.scientific.net/AMR.383-390.6252

Paper Titles

Effect of Peclet Number on the Thermo Capillary Convection and Molten Pool Shape Formation during Laser Welding Using CFD
p.6231

Heuristic Model for Dynamic Single Machine Group Scheduling in Laser Cutting Job Shop to Minimize the Makespan
p.6236

Functional Testing of Direct Metal Laser Sintered (DMLS) Components for Automotive Application
p.6242

An Investigation on the Effect of Pulsed Nd:YAG Laser Welding Parameters of Stainless Steel 1.4418
p.6247

Evolution of Direct Selective Laser Sintering of Metals
p.6252

Effect of Defocusing on Bead-on-Plate of Ti6Al4V by Yb:YAG Disk Laser
p.6258

Investigation on Porosity Content in 2024 Aluminum Alloy Welding by Yb:YAG Disk Laser
p.6265

Germanium-Silicon Quantum Dots Produced by Pulsed Laser Deposition for Photovoltaic Applications
p.6270

Laser Scanner Stage Synchronization Method for Ultrafast and Wide Area Fabrication
p.6277

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 383-390Evolution of Direct Selective Laser Sintering of...

Evolution of Direct Selective Laser Sintering of Metals

Abstract:

Direct Metal Selective Laser Sintering (DMSLS) is a layer-by-layer additive process for metal powders, which allows quick production of complex geometry parts. The aim of this study is to analyse the improvement of DMSLS with “EOSINT M270”, the new laser sintering machine developed by EOS. Tests were made on sintered parts of Direct Metal 20 (DM20), a bronze based powder with a mean grain dimension of 20 μm. Different properties and accuracy were evaluated for samples manufactured with three different exposure strategies. Besides mechanical properties, the manufacturing process was also examined in order to evaluate its characteristics. The quality of laser sintered parts is too affected by operator experience and skill. Furthermore, critical phases are not automatic and this causes an extension of time required for the production. Due to these limitations, DMSLS can be used for Rapid Manufacturing, but it is especially suitable to few sample series.

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Periodical:

Advanced Materials Research (Volumes 383-390)

Pages:

6252-6257

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.383-390.6252

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Online since:

November 2011

Authors:

Francesco Cardaropoli, Fabrizia Caiazzo, Vincenzo Sergi

Keywords:

Laser Sintered Part Properties, Laser Sintering, Rapid Manufacturing

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