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

Mojtaba Izadi, Aidin Farzaneh, Ian Gibson, Bernard Rolfe

Research output: Contribution to conferencePaperpeer-review

4 Citations (Scopus)
58 Downloads (Pure)

Abstract

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.

Original languageEnglish
Pages1058-1067
Number of pages10
Publication statusPublished - 2020
Externally publishedYes
Event28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017 - Austin, United States
Duration: 7 Aug 20179 Aug 2017
Conference number: 28

Conference

Conference28th Annual International Solid Freeform Fabrication Symposium - An Additive Manufacturing Conference, SFF 2017
Abbreviated titleSFF 2017
CountryUnited States
CityAustin
Period7/08/179/08/17

Fingerprint

Dive into the research topics of 'The effect of process parameters and mechanical properties of direct energy deposited stainless steel 316'. Together they form a unique fingerprint.

Cite this