Paper Title:
Characterization of Colmonoy 227-F Samples Obtained by Direct Laser Metal Deposition
  Abstract

Direct Laser Metal Deposition (DLMD) is an emerging technique in the group of Material Accretion Manufacturing (MAM) processes because of the possibility to fabricate and to repair a wide range of metal components with a complex geometry, starting from metal powders. DLMD is a technology which combines computer aided design, laser cladding and rapid prototyping. Fully dense metallic parts can be directly obtained through melting coaxially fed powders with a laser. The success of this technology in the die and tool industry depends on the parts quality to be achieved. An accurate control of the parameters such as laser power, spot diameter, scanning speed and powder mass flow rate is fundamental to obtain the required geometric dimensions and material properties. In this work, the performance of the DLMD process was examined in terms of hardness, porosity, microstructure, and composition. A fitting equipment was built and used for the experiments together with a CO2 laser machine with a maximum power of 3 kW. The material used for experimental tests was Colmonoy 227-F, a Nickel alloy specially designed for glass container mould protection and restoration.

  Info
Periodical
Advanced Materials Research (Volumes 83-86)
Edited by
M. S. J. Hashmi, B. S. Yilbas and S. Naher
Pages
842-849
DOI
10.4028/www.scientific.net/AMR.83-86.842
Citation
A. Angelastro, S. L. Campanelli, A. D. Ludovico, "Characterization of Colmonoy 227-F Samples Obtained by Direct Laser Metal Deposition", Advanced Materials Research, Vols. 83-86, pp. 842-849, 2010
Online since
December 2009
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