Is the energy density a reliable parameter for materials synthesis by selective laser melting?

Research output: Contribution to journalArticleResearchpeer-review

Authors

Organisational units

External Organisational units

  • Erich Schmid Institute of Materials Science
  • Leibniz Institute for Solid State and Materials Research, Dresden
  • Indian Institute of Technology Kharagpur

Abstract

The effective fabrication of materials using selective laser melting depends on the process parameters. Here, we analyse the suitability of the energy density to represent the energy transferred to the powder bed, which is effectively used to melt the particles and to produce the bulk specimens. By properly varying laser power and speed in order to process the powder at constant energy density, we show that the equation currently used to calculate the energy density gives only an approximate estimation and that hatch parameters and material properties should be considered to correctly evaluate the energy density.

Details

Original languageEnglish
Pages (from-to)386-390
Number of pages5
JournalMaterials Research Letters [Elektronische Ressource]
Volume5.2017
Issue number6
DOIs
Publication statusPublished - 9 Mar 2017