In-Situ Defect Detection in Laser Powder Bed Fusion by Using Thermography and Optical Tomography—Comparison to Computed Tomography [PDF]
, 2020 Among additive manufacturing (AM) technologies, the laser powder bed fusion (L-PBF) is one of the most important technologies to produce metallic components.
Altenburg, Simon J. +6 more
core +1 more source
Fluid dynamics topics in bloodstain pattern analysis: Comparative review and research opportunities [PDF]
, 2013 This comparative review highlights the relationships between the disciplines of bloodstain pattern analysis (BPA) in forensics and that of fluid dynamics (FD) in the physical sciences.
Attinger, Daniel +5 more
core +3 more sources
Silica in a Mars analog environment: Ka'u Desert, Kilauea Volcano, Hawaii [PDF]
, 2010 Airborne Visible/Near-Infrared Imaging Spectrometer (AVIRIS) data acquired over the Ka'u Desert are atmospherically corrected to ground reflectance and used to identify the mineralogic components of relatively young basaltic materials, including 250–700 ...
Arvidson, Raymond E. +6 more
core +1 more source
Spattering mechanism of laser powder bed fusion additive manufacturing on heterogeneous surfaces
Scientific Reports, 2022 Laser powder additive manufacturing (PBF-LB) is an additive manufacturing method capable of producing high-precision and fully dense parts. However, nondestructively quality assurance of no internal defects remains challenging.
Toshi-Taka Ikeshoji +5 more
doaj +1 more source
Journal of Materials Research and Technology, 2023 Dual-laser powder bed fusion has excellent potential in the preparation of high-performance components due to its ability to suppress defects and control properties during the formation.
Zibin Liu +5 more
doaj +1 more source
Metal vaporization and its influence during laser powder bed fusion process
Materials & Design, 2022 Laser powder bed fusion (LPBF) is a key metal additive manufacturing process and has attracted increasing attention both in academia and industry.
Jinge Liu, Peng Wen
doaj +1 more source
Modelling of bubble nucleation in trachy-phonolitic magmas: implications for the dynamics of ash-rich eruptions [PDF]
, 2012 Nucleation of water gas bubbles in trachyphonolitic magmatic melts has been investigated integrating theory and numerical modelling with decompression experiments and analysis of natural ash samples of explosive eruptions.
Colucci, Simone
core +1 more source
Explosive activity of the summit cone of Piton de la Fournaise volcano (La Réunion island): A historical and geological review [PDF]
, 2013 International audienceSummit explosive activity and collapses that form pit craters and calderas represent major volcanic hazards on a dominantly effusive, frequently active volcano like Piton de la Fournaise.
Di Muro, Andrea +5 more
core +2 more sources
Models of the Formation of the 29 February 2016 New Spatter Cone Inside Mount Nyiragongo [PDF]
Journal of Geophysical Research: Solid Earth, 2018 AbstractA new and unusual eruptive event occurred on 29 February 2016 within the summit crater of the Mount Nyiragongo volcano. Based on field campaigns performed between July 2015 and September 2017, and building on a previously published buoyancy‐driven bidirectional magma flow model explaining the progression of Mount Nyiragongo lava lake level, we ...
Burgi, P. -Y. +5 more
openaire +4 more sources
A computational fluid dynamic analysis of the effect of weld nozzle geometry changes on shielding gas coverage during gas metal arc welding [PDF]
, 2013 Three geometry changes to the inner bore of a welding nozzle and their effects on weld quality during gas metal arc welding (GMAW) were investigated through the use of computational fluid dynamic (CFD) models and experimental trials. It was shown that an
Campbell, Stuart +3 more
core +1 more source