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The effect of process parameters and mechanical properties of direct energy deposited stainless steel 316

Version 2 2024-06-04, 09:42
Version 1 2020-06-08, 14:11
conference contribution
posted on 2024-06-04, 09:42 authored by M Izadi, A Farzaneh, Ian GibsonIan Gibson, Bernard RolfeBernard Rolfe
Process parameters in Direct Energy Deposition (DED) Additive Manufacturing are playing an important role in order to fabricate desired parts. In this research, we studied the effect of 3 process parameters, namely laser power, scan speed and powder feed rate. Based on variation of these parameters, we examined macrostructure and mechanical properties of stainless steel 316 fabricated parts, employing an orthogonal L9 array using the Taguchi technique. The results showed laser power to be the most effective factor whereas scan speed and powder feed rate were respectively less effective. In addition, effect of height of deposition was also considered. The results indicated change in macrostructure with increasing height. Finally, validation of a previously defined energy density equation for the DED process was studied. The results clearly showed the current energy density equation cannot fully represent a relation between input energy and output geometry, macrostructure, and mechanical properties.

History

Pagination

1058-1067

Location

Austin, Texas

Start date

2017-08-07

End date

2017-08-09

Language

eng

Publication classification

E1 Full written paper - refereed

Editor/Contributor(s)

[Unknown]

Title of proceedings

SFF 2017 : Proceedings of the 28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference

Event

Laboratory for Freeform Fabrication. Symposium (28th : 2017 : Austin, Texas)

Publisher

[University of Texas]

Place of publication

[Austin, Tex.]

Series

Laboratory for Freeform Fabrication Symposium

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