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Influence of selective laser melting scanning speed parameter on the surface morphology, surface roughness, and micropores for manufactured Ti6Al4V parts

Published online by Cambridge University Press:  26 May 2020

Mohd Faizal Sadali Open the ORCID record for Mohd Faizal Sadali [Opens in a new window] ,
Mohamad Zaki Hassan Open the ORCID record for Mohamad Zaki Hassan [Opens in a new window] ,
Fauzan Ahmad ,
Hafizal Yahaya  and
Zainudin A Rasid
Mohd Faizal Sadali*
Affiliation:
Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia
Mohamad Zaki Hassan*
Affiliation:
Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia
Fauzan Ahmad
Affiliation:
Malaysian Japanese International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia
Hafizal Yahaya
Affiliation:
Malaysian Japanese International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia
Zainudin A Rasid
Affiliation:
Malaysian Japanese International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia
*
a)Address all correspondence to these authors. e-mail: [email protected]
b)e-mail: [email protected]
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Abstract

Selective laser melting (SLM) is a state-of-the-art technology in the additive manufacturing field. This study focuses on the influence of scanning speed on the fabrication of Ti6Al4V samples produced by SLM. This article contributes to the effect of SLM scanning speed parameters on micropores, surface morphology, and roughness. The detailed characterizations for the parts produced by the SLM process are evaluated. An SLM scanning speed of 695, 775, or 853 mm/s was selected. The findings show that a high quality of surface morphology and microstructure is obtained at a scanning speed of 775 mm/s. In addition, the maximum surface roughness values for both upper and side surfaces are approximately 0.460 µm and 0.592 µm, respectively. Furthermore, surface defect characteristics regarding the speed mechanism parameter for the SLM system are also discussed, and the challenges to the part quality, and potential for numerous industries (e.g., aerospace, automotive, and biomedical), creating microstructures, are observed.

Keywords

additive manufacturing3D printingalloyscanning electron microscopymicrostructure
Type
Article
Information
Journal of Materials Research , Volume 35 , Issue 15: Focus Issue: Additive Manufacturing of Metals: Complex Microstructures and Architecture Design , 14 August 2020 , pp. 2025 - 2035
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Copyright © Materials Research Society 2020

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