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Selective Laser Melting of AISI316L: Process Optimization and Mechanical Property Evaluation

[+] Author Affiliations
Erica Liverani, Andrea Gamberoni, Eleonora Balducci, Alessandro Ascari, Lorella Ceschini, Alessandro Fortunato

University of Bologna, Bologna, Italy

Paper No. MSEC2016-8869, pp. V001T02A038; 9 pages
doi:10.1115/MSEC2016-8869
From:
  • ASME 2016 11th International Manufacturing Science and Engineering Conference
  • Volume 1: Processing
  • Blacksburg, Virginia, USA, June 27–July 1, 2016
  • Conference Sponsors: Manufacturing Engineering Division
  • ISBN: 978-0-7918-4989-7
  • Copyright © 2016 by ASME

abstract

The influence of selective laser melting (SLM) process parameters such as laser power, build direction and scan hatch spacing on mechanical properties, microstructures and porosity formation in AISI 316L components is presented. Experimental activities are performed based on a statistical design-of-experiment approach based on a three-factor, two-level experimental plane. Mechanical tests, as well as optical and SEM analyses were carried out to correlate the resulting microstructures and defects to the process parameters. In order to better characterize the process, gas type, gas flux, coater speed and component positioning were also taken into account.

Copyright © 2016 by ASME

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