Surface Roughness Studies on F357 Aluminum Alloy Fabricated Using Laser Powder Bed Fusion Process

Jaskaranpal Singh Dhillon; Su Su; Oscar Sanchez Mata; Tejas Ramakrishnan; Mathieu Brochu

doi:10.3390/engproc2023043008

Engineering Proceedings (Sep 2023)

Surface Roughness Studies on F357 Aluminum Alloy Fabricated Using Laser Powder Bed Fusion Process

Jaskaranpal Singh Dhillon,
Su Su,
Oscar Sanchez Mata,
Tejas Ramakrishnan,
Mathieu Brochu

Affiliations

Jaskaranpal Singh Dhillon: REGAL Aluminum Research Center, Mining and Materials Engineering Department, McGill University, Wong Building, 3610 University St., Montreal, QC H3A 0C5, Canada
Su Su: REGAL Aluminum Research Center, Mining and Materials Engineering Department, McGill University, Wong Building, 3610 University St., Montreal, QC H3A 0C5, Canada
Oscar Sanchez Mata: REGAL Aluminum Research Center, Mining and Materials Engineering Department, McGill University, Wong Building, 3610 University St., Montreal, QC H3A 0C5, Canada
Tejas Ramakrishnan: REGAL Aluminum Research Center, Mining and Materials Engineering Department, McGill University, Wong Building, 3610 University St., Montreal, QC H3A 0C5, Canada
Mathieu Brochu: REGAL Aluminum Research Center, Mining and Materials Engineering Department, McGill University, Wong Building, 3610 University St., Montreal, QC H3A 0C5, Canada

DOI: https://doi.org/10.3390/engproc2023043008
Journal volume & issue: Vol. 43, no. 1
p. 8

Abstract

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Aluminum alloys processed using laser powder bed fusion are attracting industrial and research efforts striving to achieve the lightweighting potential and combination of good mechanical and corrosion properties. In this study, border parameter optimization for F357 (AlSi7Mg) alloy processed using LPBF was performed with the aim of reducing the as-fabricated surface roughness. The optimization revealed that laser power and scanning speed can significantly influence the surface roughness of cube vertical surfaces. Measured areal average surface roughness (Sa) for cube samples varied from 15 to 24 µm. The cube-based optimized parameters were used to fabricate angled wall samples with angles ranging from 45° to 90°. The surface roughness reduced when the built angle increased from 45° to 75°, while for 75–90°, the surface roughness values remained constant.

Published in Engineering Proceedings

ISSN: 2673-4591 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Technology: Engineering (General). Civil engineering (General): Engineering machinery, tools, and implements
Website: https://www.mdpi.com/journal/engproc

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