2012
DOI: 10.1007/s00170-012-4688-9
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Influence of process parameters on surface roughness of aluminum parts produced by DMLS

Abstract: Direct metal laser sintering (DMLS) is an additive manufacturing technique for the fabrication of near netshaped parts directly from computer-aided design data by melting together different layers with the help of a laser source. This paper presents an investigation of the surface roughness of aluminum samples produced by DMLS. A model based on an L 18 orthogonal array of Taguchi design was created to perform experimental planning. Some input parameters, namely laser power, scan speed, and hatching distance we… Show more

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Cited by 412 publications
(210 citation statements)
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“…Calignano et al [4] illustrated the effect of SLM process parameters on the surface roughness of AlSi10Mg components. Their results showed that laser scan speed is the most significant parameter that affects the surface roughness of as-built parts.…”
Section: Introductionmentioning
confidence: 99%
See 1 more Smart Citation
“…Calignano et al [4] illustrated the effect of SLM process parameters on the surface roughness of AlSi10Mg components. Their results showed that laser scan speed is the most significant parameter that affects the surface roughness of as-built parts.…”
Section: Introductionmentioning
confidence: 99%
“…Calignano et al [4] studied the effect of SP using glass beads on the surface roughness of as-built AlSi10Mg parts fabricated through different AM process parameters, in addition to applying various SP pressures. Their results showed a significant reduction in the roughness of as-built surfaces from 76% to 83% using 8 bar pressure.…”
Section: Introductionmentioning
confidence: 99%
“…Further benefits of Al alloys relate to their relative advantage in terms of ductility, heat transfer, electrical conductivity, and corrosion resistance in regular atmospheric conditions. However, Al-base components produced by the SLM process are known to have high surface roughness (8-20 µm) which is generated mainly due to balling and dross formation in the melt pool [6]. This surface morphology may promote the inherent sensitivity of those alloys to localized corrosion attack, especially in the presence of chloride [7,8].…”
Section: Introductionmentioning
confidence: 99%
“…Another fundamental parameter is the laser strategy, with 678 rotation of the laser scanning directions between following layers, in order to guarantee higher isotropic properties along the x-y plane (parallel to the building platform). It is possible to find a more accurate explanation on the study and effect of the process parameters in previous works by some of the authors Manfredi et al [13,14] and by Calignano et al [15].…”
Section: Dmls Processmentioning
confidence: 94%