Selective laser melting of aluminium components

Louvis, Eleftherios; Fox, Peter; Sutcliffe, Christopher

doi:10.1016/j.jmatprotec.2010.09.019

Cited by 763 publications

(337 citation statements)

References 16 publications

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“…With this setup it is possible to fabricate parts with maximum dimensions of 10 mm × 40 mm × 40 mm 3 ( H × W × D). To avoid oxidation a sealed chamber was installed that was flooded with nitrogen to keep the residual oxygen level less than 0.1% as described by Louvis et al [30]. Additionally, an exhauster was fixed close to the melt pool for removing the strong smoke to protect the exit window of the objective against the deposition of soot.…”

Section: Methodsmentioning

confidence: 99%

Selective laser melting of hypereutectic Al-Si40-powder using ultra-short laser pulses

et al. 2017

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We investigate the use of ultra-short laser pulses for the selective melting of Al-Si40-powder to fabricate complex lightweight structures with wall sizes below 100 μm combined with higher tensile strength and lower thermal expansion coefficient in comparison to standard Al-Si alloys. During the cooling process using conventional techniques, large primary silicon particles are formed which impairs the mechanical and thermal properties. We demonstrate that these limitations can be overcome using ultra-short laser pulses enabling the rapid heating and cooling in a non-thermal equilibrium process. We analyze the morphology characteristics and micro-structures of single tracks and thin-walled structures depending on pulse energy, repetition rate and scanning velocity utilizing pulses with a duration of 500 fs at a wavelength of 1030 nm . The possibility to specifically change and optimize the microstructure is shown.

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Section: Methodsmentioning

confidence: 99%

Selective laser melting of hypereutectic Al-Si40-powder using ultra-short laser pulses

et al. 2017

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“…In this case melting usually ensure the formation of dense parts. The most applied material is AISI316 stainless steel [125], but examples are found also with aluminum [126] or titanium. The advantages and disadvantages of the different AM techniques have been effectively compared by Capel et al [123] as synthesized in Table 2.…”

Section: Reactor Designmentioning

confidence: 99%

Chemical reaction engineering, process design and scale-up issues at the frontier of synthesis: Flow chemistry

Rossetti

Compagnoni

2016

Chemical Engineering Journal

184

103

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Flow chemistry has been proposed in modern organic chemistry as a mean for process intensification, to improve the control over reaction performance and to achieve higher yield. However, many open issues can be evidenced regarding the true possibility of scale-up, as well as currently lacking information for process design and economical evaluation. This review proposes some recent examples of flow synthesis deepening in particular the scale-up and engineering issues. Required information is evidenced, as well as some transport and kinetic data required for the practical implementation of the results.

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“…AlSi10Mg is a typical casting alloy with virtuous casting properties and is typically used for cast parts with thin walls and complex geometry and it provides good strength, hardness and dynamic properties and is therefore also used for parts subject to high loads [10].…”

Section: Methodsmentioning

confidence: 99%

Dimensional Accuracy and Surface Roughness Analysis for AlSi10Mg Produced by Selective Laser Melting (SLM)

et al. 2016

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Abstract. Selective Laser Melting (SLM) is an Additive Manufacturing (AM) technique that built 3D part in a layer-by-layer method by melting the top surface layer of a powder bed with a high intensity laser according to sliced 3D CAD data. AlSi10Mg alloy is a traditional cast alloy that is broadly used for die-casting process and used in automotive industry due its good mechanical properties. This paper seeks to investigate the requirement SLM in rapid tooling application. The feasibility study is done by examining the surface roughness and dimensional accuracy as compared to the benchmark part produced through the SLM process with constant parameters. The benchmark produced by SLM shows the potential of SLM in a manufacturing application particularly in moulds.

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Selective laser melting of aluminium components

Cited by 763 publications

References 16 publications

Selective laser melting of hypereutectic Al-Si40-powder using ultra-short laser pulses

Selective laser melting of hypereutectic Al-Si40-powder using ultra-short laser pulses

Chemical reaction engineering, process design and scale-up issues at the frontier of synthesis: Flow chemistry

Dimensional Accuracy and Surface Roughness Analysis for AlSi10Mg Produced by Selective Laser Melting (SLM)

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