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Shape Distortion Prediction in Complex 3D Parts Induced During the Selective Laser Melting Process

Abstract : A computational thermomechanical model is proposed to predict the shape distortions of parts produced by additive manufacturing. This process induces material fusion and thus thermal and metallurgical phenomena. A simple experimental calibration is in to include their combined effect in the proposed model. As in additive manufacturing itself, the proposed model works in a layer-by-layer basis. The layers are linked using thermally activated contact elements. The model is validated experimentally, using a complex part, printed by Selective Laser Melting. The model was able to accurately predict the real shape deviations. This work represents a step toward a digital twin.
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https://hal-amu.archives-ouvertes.fr/hal-02975000
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Submitted on : Thursday, October 22, 2020 - 11:56:24 AM
Last modification on : Wednesday, November 3, 2021 - 7:29:58 AM
Long-term archiving on: : Saturday, January 23, 2021 - 6:54:53 PM

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Dimitrios Bompos, Julien Chaves-Jacob, Jean-Michel Sprauel. Shape Distortion Prediction in Complex 3D Parts Induced During the Selective Laser Melting Process. CIRP Annals - Manufacturing Technology, Elsevier, 2020, ⟨10.1016/j.cirp.2020.04.014⟩. ⟨hal-02975000⟩

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