On the Modeling and Simulation of SLM and SLS for Metal and Polymer Powders: A Review

Papazoglou, Emmanouil L.; Karkalos, Nikolaos E.; Karmiris-Obratański, Panagiotis; Markopoulos, Angelos P.

doi:10.1007/s11831-021-09601-x

Cited by 41 publications

(11 citation statements)

References 167 publications

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“…Q G is the power distribution given by the moving Goldak's doubleellipsoid heat source model as shown in Fig. 5 [29], this heat source model from the welding process, however, it is also suitable for research on the SLM process [30].…”

Section: Calculation Of the Required Heat Sourcementioning

confidence: 99%

A new approach for calculating inherent strain and distortion in additive manufacturing of metal parts

Park

Shin

Tran

2022

Int J Adv Manuf Technol

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Section: Calculation Of the Required Heat Sourcementioning

confidence: 99%

A new approach for calculating inherent strain and distortion in additive manufacturing of metal parts

Park

Shin

Tran

2022

Int J Adv Manuf Technol

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“…Here, λ PB (T ) are usually estimated with the scalar conductivity λ PB (T ) as isotropic and as a function of the porosity of the powder bed, taking into account that the powder consists of solid grains and a liquid material (gas). An overview of possible modeling approaches is given by Papazoglou et al [11]. In the context of this publication, due to the missing experimental investigations of the present process, the approach of Yin et al [12] is chosen for simplicity.…”

Section: Thermal Parametersmentioning

confidence: 99%

Thermal Modeling of Laser Powder Bed Fusion during Printing on Temperature-Unstable Materials Considering Local Sintering

Frölich

Kärger

2022

KEM

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The integration of local metal structures into polymer components using Laser Powder Bed Fusion (PBF-LB/M) offers great potential regarding multifunctional lightweight structures. However, such process hybridization involves huge challenges. In order to reduce the temperature input into the less temperature-resistant materials, the use of lower laser powers in the interfacial region is essential. The resulting local sintering of the metal powder affects the thermal properties in the interfacial region, leading to a change in heat dissipation in the temperature-unstable material. A modeling approach oriented to selective laser sintering is presented for predicting the degree of sintering and associated thermal properties in the context of PBF-LB/M process simulation.

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“…It provides excellent mechanical properties and good precision [157]. The main difference between SLS and SLM is that SLS uses the laser to fuse small particles of raw material to build a 3D part, whereas SLM completely melts the powdered material with the laser, resulting in local melt pools, thus obtaining very dense parts (>99% density) [158]. The DMLS procedure is similar to the SLM working process.…”

Section: Powder Bed Fusionmentioning

confidence: 99%

A Review on Additive Manufacturing of Micromixing Devices

2021

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In recent years, additive manufacturing has gained importance in a wide range of research applications such as medicine, biotechnology, engineering, etc. It has become one of the most innovative and high-performance manufacturing technologies of the moment. This review aims to show and discuss the characteristics of different existing additive manufacturing technologies for the construction of micromixers, which are devices used to mix two or more fluids at microscale. The present manuscript discusses all the choices to be made throughout the printing life cycle of a micromixer in order to achieve a high-quality microdevice. Resolution, precision, materials, and price, amongst other relevant characteristics, are discussed and reviewed in detail for each printing technology. Key information, suggestions, and future prospects are provided for manufacturing of micromixing machines based on the results from this review.

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On the Modeling and Simulation of SLM and SLS for Metal and Polymer Powders: A Review

Cited by 41 publications

References 167 publications

A new approach for calculating inherent strain and distortion in additive manufacturing of metal parts

A new approach for calculating inherent strain and distortion in additive manufacturing of metal parts

Thermal Modeling of Laser Powder Bed Fusion during Printing on Temperature-Unstable Materials Considering Local Sintering

A Review on Additive Manufacturing of Micromixing Devices

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