Results 11 to 20 of about 4,122,240 (226)

Microstructure and Hardness of Ti-6242 Alloy Fabricated by Electron Beam Powder Bed Fusion and Laser Powder Bed Fusion Methods [PDF]

Journal of Advanced Materials in Engineering
Introduction and Objectives: Ti-6Al-2Sn-4Zr-2Mo (Ti6242) alloy is a near-alpha titanium alloy widely used in biomedical, automobile, and aviation industries, known for having a high service temperature.
Amir Hossein Emami Ghalehghasemi, Abolfazl Azadi, Behzad Niroumand, Manuela Galati, Abdollah Saboori   +4 more
doaj   +4 more sources

Extracting powder bed features via electron optical images during electron beam powder bed fusion [PDF]

Additive Manufacturing Letters
Electron beam powder bed fusion offers the unique opportunity to observe the process by measuring scattered electrons on a metal detector. This technique is the state of the art in generating electron optical images of the build area after melting using ...
Matthias Markl, Mohammad Reza Azadi Tinat, Timo Berger, Jakob Renner, Carolin Körner   +4 more
doaj   +3 more sources

A Ray Tracing Model for Electron Optical Imaging in Electron Beam Powder Bed Fusion [PDF]

Journal of Manufacturing and Materials Processing, 2023
The recent success of the process monitoring method Electron Optical Imaging, applied in the additive manufacturing process Electron Beam Powder Bed Fusion, necessitates a clear understanding of the underlying image formation process.
Jakob Renner, Julian Grund, Matthias Markl, Carolin Körner   +3 more
doaj   +4 more sources

Electron Beam Powder Bed Fusion of Water Atomized Iron and Powder Blends. [PDF]

Materials (Basel), 2022
In the present state of the art, highly spherical alloy powders are employed as feedstock in powder bed fusion processes. These powders are characterized by high flowability and apparent density. Their elaborate fabrication process is reflected in high powder price, adding a significant fraction to the cost of additively manufactured parts.
Kirchner A, Klöden B, Franke-Jurisch M, Walther G, Weißgärber T.   +4 more
europepmc   +5 more sources

Electron-Optical In Situ Imaging for the Assessment of Accuracy in Electron Beam Powder Bed Fusion. [PDF]

Materials (Basel), 2021
The current study evaluates the capabilities of electron-optical (ELO) in situ imaging with respect to monitoring and prediction of manufacturing precision in electron beam powder bed fusion. Post-process X-ray computed tomography of two different as-built parts is used to quantitatively evaluate the accuracy and limitations of ELO imaging ...
Arnold C, Breuning C, Körner C.
europepmc   +6 more sources

Powder Bed Fusion of Multimaterials

Journal of Manufacturing and Materials Processing, 2023
Powder bed fusion (PBF) process has been used successfully to produce 3D structures using single material properties. The current industrial demand is to use the technology to produce 3D structures of multimaterial properties.
Thywill Cephas Dzogbewu, Deon de Beer
doaj   +2 more sources

Microstructure tailoring in Electron Beam Powder Bed Fusion additive manufacturing and its potential consequences

Results in Materials, 2019
Electron Beam Powder Bed Fusion process for Alloy 718 was investigated, in the sense of microstructural evolution with varying process conditions. The existence of a geometric relationship between the melt front and the processing parameters was observed.
Arun Ramanathan Balachandramurthi, Jonas Olsson, Joakim Ålgårdh, Anders Snis, Johan Moverare, Robert Pederson   +5 more
doaj   +2 more sources

Powder recycling for electron beam powder bed fusion of TiAl alloy

Materials & Design
This study systematically investigates the impact of powder recycling (up to 70 cycles) on Ti-48Al-2Cr-2Nb (at.%) alloy processed by electron beam powder bed fusion (EB-PBF).
Feihong Wang, Mengchen Song, Yongfeng Liang, Gengwu Ge, Xiaoyu Liang, Feng Lin, Honghui Wu, Dongfang Wang, Wenbin Kan, Li Liu, Junpin Lin   +10 more
doaj   +2 more sources

Melting ceramic Al2O3 powder by electron beam powder bed fusion

Progress in Additive Manufacturing
AbstractElectron beam powder bed fusion (PBF-EB) is a known metal additive manufacturing (AM) technology. Processing non-conducting powders such as ceramics has so far been considered as not feasible because of the inherent problems with Coulomb repulsion due to insufficient electrical conductivity.
William Sjöström, Carlos Botero, Emilio Jimenez-Piqueo   +2 more
openaire   +4 more sources

Electron Beam Powder Bed Fusion of Refractory Metals

Euro PM2024 Proceedings
For refractory metals additive manufacturing of near net shape parts represents an attractive opportunity, in particular for complex geometries. The combination of high melting point, thermal conductivity and brittleness represents a challenge for fusion processes.
A. Kirchner, U. Gaitzsch, D. Dorow-Gerspach, B. Distl, M. Franke-Jurisch, C. Zhong, T. Weißgärber   +6 more
openaire   +2 more sources