On the limitations of Volumetric Energy Density as a design parameter for Selective Laser Melting
Umberto Scipioni Bertoli,Alexander J. Wolfer,Manyalibo J. Matthews,Jean-Pierre R. Delplanque,Julie M. Schoenung +4 more
Reads0
Chats0
TLDR
In this paper, a review of the current literature on additive manufacturing of 316L stainless steel (SS) related to input parameter scaling relations is presented, where the authors identify a range of Volumetric Energy Density (VED) values that should lead to fully dense parts.About:
This article is published in Materials & Design.The article was published on 2017-01-05 and is currently open access. It has received 464 citations till now. The article focuses on the topics: Selective laser melting & Laser power scaling.read more
Citations
More filters
Journal ArticleDOI
3D printing of Aluminium alloys: Additive Manufacturing of Aluminium alloys using selective laser melting
Nesma T. Aboulkhair,Marco Simonelli,Luke Parry,Ian Ashcroft,Christopher Tuck,Richard J.M. Hague +5 more
TL;DR: A comprehensive understanding of the interrelation between the various aspects of the subject, as this is essential to demonstrate credibility for industrial needs, is presented in this paper, which highlights some key topics requiring attention for further progression.
Journal ArticleDOI
Optimisation of process parameters to address fundamental challenges during selective laser melting of Ti-6Al-4V: A review
TL;DR: In this paper, the authors identify the state of the art in process optimisation which is being used to confront these challenges in the as-built state with a view to removing the reliance on post processing.
Journal ArticleDOI
Is the energy density a reliable parameter for materials synthesis by selective laser melting
TL;DR: In this paper, the suitability of the energy density to represent the energy transferred to the process parameters was analyzed for the selective laser melting process, and the authors showed that the energy densities can be used to estimate the amount of energy transferred.
Journal ArticleDOI
In-situ characterization of laser-powder interaction and cooling rates through high-speed imaging of powder bed fusion additive manufacturing
TL;DR: In this paper, high framerate video recording of Selective Laser Melting (SLM) is used to provide useful insight on the laser-powder interaction and melt pool evolution of 316L powder layers, while also serving as a novel instrument to quantify cooling rates of the melt pool.
Journal ArticleDOI
Mechanistic models for additive manufacturing of metallic components
TL;DR: In this article, the authors focus on the available mechanistic models of additive manufacturing (AM) that have been adequately validated and evaluate the functionality of AM models in understanding of the printability of commonly used AM alloys and the fabrication of functionally graded alloys.
References
More filters
Journal ArticleDOI
Laser powder-bed fusion additive manufacturing: Physics of complex melt flow and formation mechanisms of pores, spatter, and denudation zones
TL;DR: In this paper, the effect of the recoil pressure and Marangoni convection in laser powder bed fusion (L-PBF) of 316L stainless steel was demonstrated. And the results were validated against the experiments and the sensitivity to laser absorptivity was discussed.
Journal ArticleDOI
Observation of keyhole-mode laser melting in laser powder-bed fusion additive manufacturing
Wayne E. King,Holly D. Barth,Victor Castillo,Gilbert F. Gallegos,John W. Gibbs,John W. Gibbs,Douglas E. Hahn,Chandrika Kamath,Alexander M. Rubenchik +8 more
TL;DR: In this article, the experimental observation of keyhole-mode laser melting in a laser powder-bed fusion additive manufacturing setting for 316L stainless steel is presented, and the conditions required to transition from conduction controlled melting to keyholemode melting are identified.
Journal ArticleDOI
Reducing porosity in AlSi10Mg parts processed by selective laser melting
TL;DR: In this article, the windows of parameters required to produce high density parts from AlSi10Mg alloy using selective laser melting were investigated and a compromise between the different parameters and scan strategies was achieved and used to produce parts achieving a density of 99.8%.
Journal ArticleDOI
Analysis of defect generation in Ti–6Al–4V parts made using powder bed fusion additive manufacturing processes
TL;DR: In this article, the defect characteristics are discussed with respect to defect generation mechanisms; and effective process windows for SLM and EBM system are discussed. But they do not consider the defect generation mechanism.
Journal ArticleDOI
Laser powder bed fusion additive manufacturing of metals; physics, computational, and materials challenges
Wayne E. King,Andrew T. Anderson,Robert M. Ferencz,N.E. Hodge,Chandrika Kamath,Saad A. Khairallah,Alexander M. Rubenchik +6 more
TL;DR: In this paper, the authors review the current state of the art and describe the challenges that need to be met to achieve the desired fundamental understanding of the physics of the additive manufacturing process.