Effect of directed energy deposition processing parameters on laser deposited Inconel® 718

External morphology

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Through laser-based, directed energy deposition, single-track bead-on-plate clads of Inconel® 718 were deposited onto substrates of the same composition. Postprocessing analyses of the geometry of the single beads were made to assess the effects of changes in processing parameters. Laser power, travel speed, working distance, and initial substrate temperature were varied to alter the shape of the laser deposited material. The resulting geometries were analyzed through metallography and optical profilometry. This study concludes that laser power has the largest effect on bead width, and that working distance has the largest effect on bead height and angle of repose. Additionally, substrate preheating was found to amplify the effects of varying power on bead height and width. Empirical models were developed to describe the geometry of single beads based on chosen processing parameters. These models were compared to optical profilometry measurements for accuracy.

Original languageEnglish (US)
Article number022001
JournalJournal of Laser Applications
Volume29
Issue number2
DOIs
StatePublished - May 1 2017

Fingerprint

Inconel (trademark)
beads
Profilometry
Lasers
Processing
lasers
Geometry
Substrates
Metallography
energy
Preheating
geometry
metallography
laser materials
optical measurement
travel
Chemical analysis
heating
Temperature

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering
  • Instrumentation

Cite this

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title = "Effect of directed energy deposition processing parameters on laser deposited Inconel{\circledR} 718: External morphology",
abstract = "Through laser-based, directed energy deposition, single-track bead-on-plate clads of Inconel{\circledR} 718 were deposited onto substrates of the same composition. Postprocessing analyses of the geometry of the single beads were made to assess the effects of changes in processing parameters. Laser power, travel speed, working distance, and initial substrate temperature were varied to alter the shape of the laser deposited material. The resulting geometries were analyzed through metallography and optical profilometry. This study concludes that laser power has the largest effect on bead width, and that working distance has the largest effect on bead height and angle of repose. Additionally, substrate preheating was found to amplify the effects of varying power on bead height and width. Empirical models were developed to describe the geometry of single beads based on chosen processing parameters. These models were compared to optical profilometry measurements for accuracy.",
author = "Corbin, {David J.} and Nassar, {Abdalla Ramadan} and Reutzel, {Edward William} and Beese, {Allison Michelle} and Kistler, {Nathan A.}",
year = "2017",
month = "5",
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doi = "10.2351/1.4977476",
language = "English (US)",
volume = "29",
journal = "Journal of Laser Applications",
issn = "1042-346X",
publisher = "Laser Institute of America",
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TY - JOUR

T1 - Effect of directed energy deposition processing parameters on laser deposited Inconel® 718

T2 - External morphology

AU - Corbin, David J.

AU - Nassar, Abdalla Ramadan

AU - Reutzel, Edward William

AU - Beese, Allison Michelle

AU - Kistler, Nathan A.

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Through laser-based, directed energy deposition, single-track bead-on-plate clads of Inconel® 718 were deposited onto substrates of the same composition. Postprocessing analyses of the geometry of the single beads were made to assess the effects of changes in processing parameters. Laser power, travel speed, working distance, and initial substrate temperature were varied to alter the shape of the laser deposited material. The resulting geometries were analyzed through metallography and optical profilometry. This study concludes that laser power has the largest effect on bead width, and that working distance has the largest effect on bead height and angle of repose. Additionally, substrate preheating was found to amplify the effects of varying power on bead height and width. Empirical models were developed to describe the geometry of single beads based on chosen processing parameters. These models were compared to optical profilometry measurements for accuracy.

AB - Through laser-based, directed energy deposition, single-track bead-on-plate clads of Inconel® 718 were deposited onto substrates of the same composition. Postprocessing analyses of the geometry of the single beads were made to assess the effects of changes in processing parameters. Laser power, travel speed, working distance, and initial substrate temperature were varied to alter the shape of the laser deposited material. The resulting geometries were analyzed through metallography and optical profilometry. This study concludes that laser power has the largest effect on bead width, and that working distance has the largest effect on bead height and angle of repose. Additionally, substrate preheating was found to amplify the effects of varying power on bead height and width. Empirical models were developed to describe the geometry of single beads based on chosen processing parameters. These models were compared to optical profilometry measurements for accuracy.

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