Prediction of Residual Stress and Part Distortion in Selective Laser Melting
C. Li,J.F. Liu,Yuebin Guo +2 more
TLDR
In this paper, two efficient multiscale modeling methods have been developed to across microscale laser scan, mesoscale layer hatch, and macroscale part buildup for fast prediction of residual stress and part distortion.About:
This article is published in Procedia CIRP.The article was published on 2016-01-01 and is currently open access. It has received 88 citations till now. The article focuses on the topics: Residual stress & Distortion.read more
Citations
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An overview of residual stresses in metal powder bed fusion
Jamison L. Bartlett,Xiaodong Li +1 more
TL;DR: In this paper, the authors survey and assemble the knowledge existing in the literature regarding residual stresses in powder bed fusion (PBF) processes, highlighting the anisotropic nature of the stress fields.
Journal ArticleDOI
An overview of powder granulometry on feedstock and part performance in the selective laser melting process
TL;DR: In this article, the current progress of metal AM feedstock and various powder characteristics related to the Selective Laser Melting (SLM) process is addressed, with a focus on the influence of powder granulometry on feedstock.
Journal ArticleDOI
Efficient predictive model of part distortion and residual stress in selective laser melting
TL;DR: In this paper, a temperature-thread multiscale modeling approach has been developed to predict residual stress and part distortion of a twin cantilever during the selective laser melting (SLM) process.
Journal ArticleDOI
Invited Review Article: Metal-additive manufacturing — Modeling strategies for application-optimized designs
TL;DR: This review is envisioned to provide an essential framework on modeling techniques to supplement the experimental optimization process and highlight fundamental modeling strategies, considerations, and results, as well as validation techniques using experimental data.
Journal ArticleDOI
Analytical modelling of residual stress in additive manufacturing
TL;DR: In this article, a physics-based analytical model to assess residual stresses in additive manufacturing made of metallic materials is presented and validated experimentally, taking the thermal stresses as input, the residual stresses are calculated analytically to obtain the distribution across the depth.
References
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Journal ArticleDOI
Selective laser melting of iron-based powder
Jean-Pierre Kruth,Ludo Froyen,J. Van Vaerenbergh,Peter Mercelis,Marleen Rombouts,Bert Lauwers +5 more
TL;DR: In this paper, a mixture of different types of particles (Fe, Ni, Cu and Fe3P) specially developed for selective laser sintering (SLS) is described.
Journal ArticleDOI
Consolidation phenomena in laser and powder-bed based layered manufacturing
TL;DR: In this article, the authors describe which types of laser-induced consolidation can be applied to what type of material, and demonstrate that although SLS/SLM can process polymers, metals, ceramics and composites, quite some limitations and problems cause the palette of applicable materials still to be limited.
Journal ArticleDOI
Rapid manufacturing and rapid tooling with layer manufacturing (lm) technologies, state of the art and future perspectives
TL;DR: In this article, a systematic material dependent classification of layer manufacturing and process oriented metal part manufacturing techniques are proposed, mainly for metallic parts, polymer parts and tooling, and the generic and the major specific process characteristics and materials are described.
Journal ArticleDOI
Practical considerations and capabilities for laser assisted direct metal deposition
G.K. Lewis,M. Eric Schlienger +1 more
TL;DR: Directed light fabrication (DLF) and laser engineered net shaping (LENS TM ) processes have been proven feasible for fabricating components from nearly any metal system to near-net shape accuracy with mechanical properties approaching and in some cases exceeding the properties found in conventional processed wrought structures.
Journal ArticleDOI
Thermal stresses and deposition patterns in layered manufacturing
TL;DR: In this paper, the effect of deposition patterns on the resulting stresses and deflections in laser-deposition metal parts was examined and the results were in agreement with the finite element modeling predictions.
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