Paper Title:
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.

  Info
Periodical
Advanced Materials Research (Volumes 383-390)
Chapter
Chapter 24: Laser Based Manufacturing
Edited by
Wu Fan
Pages
6252-6257
DOI
10.4028/www.scientific.net/AMR.383-390.6252
Citation
F. Cardaropoli, F. Caiazzo, V. Sergi, "Evolution of Direct Selective Laser Sintering of Metals", Advanced Materials Research, Vols. 383-390, pp. 6252-6257, 2012
Online since
November 2011
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Price
$32.00
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