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Modeling Selective Laser Melting

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Simulation of Additive Manufacturing using Meshfree Methods

Part of the book series: Lecture Notes in Applied and Computational Mechanics ((LNACM,volume 97))

Abstract

Selective Laser Melting (SLM) is a laser powder bed fusion process that frequently comes into use for printing metal or ceramic structures. A positive connection between the layers can only be achieved by a remelt of the particles with the underlying layer. The key factor for successful printing is the control of the melt pool, which determines the shape and properties of the printed part. The parameters of the 3D printer must be set so that unwanted side effects can be excluded. The transition from the powder to the final printed part is a sequence of numerous physical processes that must be represented by the simulation. Suitable experimental tests are required to validate the models. Both aspects are presented in the first two sections. The differential equations are solved using SPH and the OTM method. The results of both schemes are compared and evaluated. The presented modeling approaches can also be used for Laser Metal Deposition or other laser powder bed fusion processes such as Electron Beam Melting or Selective Laser Sintering.

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  1. Institute of Continuum Mechanics, Leibniz University Hannover, Garbsen, Germany

    Christian Weißenfels

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Weißenfels, C. (2022). Modeling Selective Laser Melting. In: Simulation of Additive Manufacturing using Meshfree Methods. Lecture Notes in Applied and Computational Mechanics, vol 97. Springer, Cham. https://doi.org/10.1007/978-3-030-87337-0_8

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  • DOI: https://doi.org/10.1007/978-3-030-87337-0_8

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