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Additive Manufacturing Letters
Scopus
ISSN 2772-3690 · Elsevier · 381 artikel di indeks
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Artikel Jurnal
Computational predictions of complex property trajectories in compositionally graded alloys
Additive manufacturing enables net-shaped compositionally graded components that satisfy conflicting property requirements through spatial variations in alloy chemistry and microstructure. Although current path-planning methods for compositionally graded alloys emphasize avoiding deleterious…
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Artikel Jurnal
Multi-camera fault detection in fused filament fabrication printing
Fused filament fabrication is a popular extrusion 3D printing technology because of its affordability and accessibility. However, the approach often suffers from printing errors that result in wasted time, materials and energy. Convolutional neural networks can be trained to recognise a wide…
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Artikel Jurnal
Multi-nozzle molten metal droplet jetting
Molten metal droplet jetting (MMJ) is an emerging metal additive manufacturing (AM) technology that can use low-cost wire, rod, or even ingot feedstock material. This paper describes the architecture and preliminary implementation of what is believed to be among the first demonstrations of MMJ with…
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Artikel Jurnal
Adaptive-binder-aggregate mixing (ABAM): Concept for extrusion-based multi-material 3D concrete printing
3D concrete printing (3DCP) enables layerwise fabrication with digital control, offering geometric freedom and material efficiency. However, conventional pump-based 3DCP is constrained by conflicting material requirements, namely sufficient workability for pumping and extrusion versus sufficient…
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Artikel Jurnal
Influence of deposition strategy on the microstructure of volumetric WADED-fabricated AZ61 magnesium alloy components
This study investigates the impact of various deposition strategies on the microstructure of volumetric components fabricated from AZ61 magnesium alloy using Wire Arc Direct Energy Deposition (WADED), also referred to as Wire Arc Additive Manufacturing (WAAM). Because coarse grains can…
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Artikel Jurnal
Binder-jet printing and pressure-controlled infiltration for fabrication of high-temperature, low-dead-volume microfluidic interfaces
Interfacing is a consistent weak point in the manufacturing of microscale gas chromatography columns. Current techniques for interfacing with microfluidic systems often degrade under high temperatures and thermal cycling and suffer from dead volumes. To address these challenges, we fabricated…
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Artikel Jurnal
Continuous microstructure variations with graded properties in directed energy deposition
Directed energy deposition additive manufacturing is a versatile technique for fabricating complex geometries, where precise control of process parameters is crucial for tailoring microstructure and part properties. Microstructure control strategies usually involve variation of material composition…
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Artikel Jurnal
Linking process parameters to residual stress and distortion in directed energy deposition repair via machine learning and response surface methodology
Laser-directed energy deposition (L-DED) filling repair is often compromised by printing defects like cracking induced by excessive thermal residual stresses. Optimising process parameters is challenging, as complex thermal histories make trial-and-error costly and simulations computationally…
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Artikel Jurnal
Advances in Additive Manufacturing for Architectural Acoustics: Design, Materials, Validation, and Implementation Challenges in Building Construction
Additive Manufacturing (AM), commonly referred to as 3D printing, has emerged as a transformative technology in the construction sector, enabling unprecedented geometric freedom, automation, and material efficiency. While its adoption for structural applications has accelerated, its integration…
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Artikel Jurnal
Predicting porosity in laser powder bed fusion of metals (PBF-LB/M) using scanning data and machine learning
Laser powder bed fusion of metals (PBF-LB/M) remains prone to process-induced porosity, and practical tools that connect scan behavior to defect formation are still limited. In this study, we present a framework that predicts porosity from scan data acquired on a commercial PBF-LB/M system using an…
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Artikel Jurnal
A Buckingham-Pi dimensionless analysis for melt pool stability and defect prediction in additive manufacturing
Melt pool instabilities limit the reliability of additive manufacturing. Here, we demonstrate that a minimal Buckingham-π framework, supplemented by a normalized enthalpy (NE) metric, consolidates process outcomes across heat source settings (power, speed, spot) and material properties. IN738LC was…
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Artikel Jurnal
Enabling powder bed fusion (PBF) processing of polyether imide (PEI) through mixed-phase solvent processing
Polymeric material options for powder bed fusion (PBF) additive manufacturing (AM) techniques are typically limited to semicrystalline thermoplastics with large differences between their melting and recrystallization temperatures. Amorphous thermoplastics like polyetherimides (PEIs) are desired in…
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Artikel Jurnal
COLD: Control and optimization of layer deposition in large-scale additive manufacturing
Large-scale thermoplastic 3D printing is an emerging technology that enables cheaper and faster real-scale prototyping and rapid tooling. However, it still presents limitations that can lead to deformations in printed parts due to inadequate cooling conditions during the process. This study…
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Artikel Jurnal
Printing multifunctional high-performance polymer parts via the hybridization of high temperature material extrusion thermal and chemical reactive bonding
Direct fabrication of multifunctional, high-performance components integrating structural dielectric and conductive materials remains a key challenge in advanced manufacturing. Additive manufacturing (AM) enables embedding functional elements layer-by-layer into structural parts. Hybrid material…
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Artikel Jurnal
Future foundries: A convergent manufacturing platform
This article introduces the Future Foundries platform developed at Oak Ridge National Laboratory, a first-generation research system designed to demonstrate convergent manufacturing. Convergent manufacturing brings together additive, subtractive, and transformative processes in a digitally…
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Artikel Jurnal
Metal droplet breakup and rapid solidification behavior under multi-stage-controlled atomization process: NiTi alloys 3D printing special powder preparation
In view of the problem of coordinated control of powder particle size distribution and surface quality during the preparation process of NiTi shape memory alloy 3D printing special metal powder EIGA method, a novel multi-stage-controlled gas atomization method is presented in this study to address…
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Artikel Jurnal
Thermal camera calibrated thermo-mechanical simulation of ER70S-6 wire arc additive manufacturing
A quantitatively representative Wire Arc Additive Manufacturing (WAAM) simulation requires a heat source definition constrained by the thermal field generated during deposition. In this study, ER70S-6 steel walls were produced by a Gas Metal Arc (GMAW)-based WAAM using the Cold Metal Transfer (CMT)…
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Artikel Jurnal
Laser power optimization for feedforward control of melt pools in laser powder bed fusion
Prior studies have demonstrated that there is a high correlation between uniform melt-pool size and build quality such as consistent microstructure for laser powder bed fusion (PBF-LB/M) additive manufacturing (AM) processes. This paper presents an optimization of laser power to regulate the…
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Artikel Jurnal
Enhanced adhesion of high-resolution two-photon polymerization 3D-printing: a quantitative study on substrate treatments and process compatibility for microfabrication
Two-photon polymerization (2PP) is a high-resolution 3D printing technology that enables the fabrication of complex micro- and nanostructures with sub-micrometer precision. While 2PP offers geometric freedom for applications in microfluidics, photonics, and micro-electromechanical systems (MEMS)…
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Artikel Jurnal
Water-activated soft TPE/PVA/CB-TPU piezoresistive strain sensor for wearable knee kinematics monitoringDROPBOX
Additive manufacturing (AM), and thermoplastic material extrusion in particular, is increasingly enabling the fabrication of customized soft sensing platforms for wearable applications, owing to its accessibility, low cost, and compatibility with multifunctional polymeric materials. Among emerging…