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J. Manuf. Mater. Process. 2018, 2(3), 56; https://doi.org/10.3390/jmmp2030056

Intra- and Inter-Repeatability of Profile Deviations of an AlSi10Mg Tooling Component Manufactured by Laser Powder Bed Fusion

Department of Mechanical Engineering, École de Technologie Supérieure (ÉTS), Montreal, QC H3C 1K3, Canada
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Received: 13 July 2018 / Revised: 6 August 2018 / Accepted: 15 August 2018 / Published: 21 August 2018
(This article belongs to the Special Issue Selective Laser Melting: Materials and Applications)
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Abstract

Laser powder bed fusion (LPBF) is one of the most potent additive manufacturing (AM) processes. Metallic LPBF is gaining popularity, but one of the obstacles facing its larger industrial use is the limited knowledge of its dimensional and geometrical performances. This paper presents a metrological investigation of the geometrical and dimensional deviations of a selected LPBF-manufactured component, according to the ASME Y14.5-2009 standard. This approach allows for an estimation of both the process capability, as per ISO 22514-4 standard, and the correlations between the part location in the manufacturing chamber and the profile deviations. Forty-nine parts, which are representative of a typical aerospace tooling component (30 mm in diameter and 27.2 mm in height) were manufactured from AlSi10Mg powder using an EOSINT M280 printer and subjected to a stress relief annealing at 300 °C for two hours. This manufacturing procedure was repeated three times. A complete statistical analysis was carried out and the results of the investigation show that LPBF performances for all geometrical variations of 147 identical parts fall within a range of 230 µm at a 99.73% level. View Full-Text
Keywords: additive manufacturing; laser powder bed fusion; selective laser melting; metrology; inter-repeatability; intra-repeatability; geometrical dimensioning and tolerancing (GD and T); process capability additive manufacturing; laser powder bed fusion; selective laser melting; metrology; inter-repeatability; intra-repeatability; geometrical dimensioning and tolerancing (GD and T); process capability
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
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Zongo, F.; Tahan, A.; Aidibe, A.; Brailovski, V. Intra- and Inter-Repeatability of Profile Deviations of an AlSi10Mg Tooling Component Manufactured by Laser Powder Bed Fusion. J. Manuf. Mater. Process. 2018, 2, 56.

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