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A Study on the Laser Spatter and the Oxidation Reactions During Selective Laser Melting of 316L Stainless Steel, Al-Si10-Mg, and Ti-6Al-4V

  • Symposium: Additive Manufacturing: Interrelationships of Fabrication, Constitutive Relationships Targeting Performance, and Feedback to Process Control
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Abstract

The creation of an object by selective laser melting (SLM) occurs by melting contiguous areas of a powder bed according to a corresponding digital model. It is therefore clear that the success of this metal Additive Manufacturing (AM) technology relies on the comprehension of the events that take place during the melting and solidification of the powder bed. This study was designed to understand the generation of the laser spatter that is commonly observed during SLM and the potential effects that the spatter has on the processing of 316L stainless steel, Al-Si10-Mg, and Ti-6Al-4V. With the exception of Ti-6Al-4V, the characterization of the laser spatter revealed the presence of surface oxides enriched in the most volatile alloying elements of the materials. The study will discuss the implication of this finding on the material quality of the built parts.

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Authors and Affiliations

  1. University of Nottingham, Nottingham, UK

    Marco Simonelli (Research Associate), Chris Tuck (Associate Professor), Nesma T. Aboulkhair (PhD Student), Ian Maskery (Research Associate), Ian Ashcroft (Professor of Mechanics of Solids), Ricky D. Wildman (Professor of Multiphase Flow and Mechanics) & Richard Hague (Professor of Innovative Manufacturing, and Director - EPSRC Centre for Additive Manufacturing)

Authors
  1. Marco Simonelli
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  2. Chris Tuck
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  3. Nesma T. Aboulkhair
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  4. Ian Maskery
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  5. Ian Ashcroft
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  6. Ricky D. Wildman
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  7. Richard Hague
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Corresponding author

Correspondence to Marco Simonelli.

Additional information

Manuscript submitted December 29, 2014.

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Simonelli, M., Tuck, C., Aboulkhair, N.T. et al. A Study on the Laser Spatter and the Oxidation Reactions During Selective Laser Melting of 316L Stainless Steel, Al-Si10-Mg, and Ti-6Al-4V. Metall Mater Trans A 46, 3842–3851 (2015). https://doi.org/10.1007/s11661-015-2882-8

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  • DOI: https://doi.org/10.1007/s11661-015-2882-8

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