Home > Research > Publications & Outputs > Generation of graded porous structures by contr...

Electronic data

  • Porous_Ti_-_salt_SLM_2

    Rights statement: This is the author’s version of a work that was accepted for publication in Journal of Manufacturing Processes. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Manufacturing Processes, 55, 2020 DOI: 10.1016/j.jmapro.2020.04.039

    Accepted author manuscript, 425 KB, PDF document

    Embargo ends: 22/04/21

    Available under license: CC BY-NC-ND

Links

Text available via DOI:

View graph of relations

Generation of graded porous structures by control of process parameters in the selective laser melting of a fixed ratio salt-metal feedstock

Research output: Contribution to journalJournal article

Published
  • N.T. Aboulkhair
  • G. Zhao
  • R.J.M. Hague
  • A.R. Kennedy
  • I.A. Ashcroft
  • A.T. Clare
Close
<mark>Journal publication date</mark>1/07/2020
<mark>Journal</mark>Journal of Manufacturing Processes
Volume55
Number of pages5
Pages (from-to)249-253
Publication StatusPublished
Early online date22/04/20
<mark>Original language</mark>English

Abstract

The demonstration of salt dissolution incorporated within laser powder-bed fusion fabrication processes has allowed the creation of complex porous structures without the need for sophisticated design algorithms. This serves to simplify the process, for porous structure creation in powder-bed fabrication techniques, creating a new opportunity for the realisation of optimised structures. A new methodology is presented here in which modulation of the energy density while using a single feedstock material enables three-dimensional control of porosity, ranging from 20 % to 49 %. Through structured experimentation, the response of the material to varying the process parameters in selective laser melting is evaluated and nested structures of distinct densities and morphologies are created. Correlation of the process parameters with modulus and ultimate compressive stress are established. A simple-assembly algorithm was used to generate complex parts consisting of locally assigned porosities having characteristic properties.

Bibliographic note

This is the author’s version of a work that was accepted for publication in Journal of Manufacturing Processes. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Journal of Manufacturing Processes, 55, 2020 DOI: 10.1016/j.jmapro.2020.04.039