Results 51 to 60 of about 49,283 (291)

Effect of powder size distribution on densification and microstructural evolution of binder-jet 3D-printed alloy 625

open access: yesMaterials & Design, 2019
Binder-jet 3D-printing is a powder bed additive manufacturing process that selectively deposits binder on a powder bed layer-by-layer to fabricate a green part followed by a sintering step for densification.
Amir Mostafaei   +3 more
doaj   +1 more source

Experimental and Numerical Study on the Packing Densification of Metal Powder with Gaussian Distribution

open access: yesMetals, 2020
In the additive manufacturing of metal materials, powder bed fusion 3D laser printing is the most widely used processing method. The density of the packed bed is another important parameter that can affect the part quality; however, it is the least ...
Huadong Yang   +3 more
doaj   +1 more source

The Laser Powder Bed Fusion of Nd2Fe14B Permanent Magnets: The State of the Art

open access: yesCondensed Matter
In recent years, significant effort was made to make the 3D printing of fully dense rare-earth permanent magnets a reality. Since suitable Nd2Fe14B-based initial powder material became available, additive manufacturing implementation spread widely, which
Ivan Pelevin   +4 more
doaj   +1 more source

Dual Speed Laser Re-melting for High Densification in H13 Tool Steel Metal 3D Printing [PDF]

open access: yesArchives of Metallurgy and Materials, 2019
The densification behavior of H13 tool steel powder by dual speed laser scanning strategy have been characterized for selective laser melting process, one of powder bed fusion based metal 3d printing. Under limited given laser power, the laser re-melting
Im Doo Jung   +6 more
doaj   +1 more source

A review and a statistical analysis of porosity in metals additively manufactured by laser powder bed fusion

open access: yesOpto-Electronic Advances, 2022
Additive manufacturing (AM), or 3D printing, is an emerging technology that “adds” materials up and constructs products through a layer-by-layer procedure.
Dawei Wang   +9 more
doaj   +1 more source

From 3D Models to 3D Prints: an Overview of the Processing Pipeline [PDF]

open access: yes, 2017
Due to the wide diffusion of 3D printing technologies, geometric algorithms for Additive Manufacturing are being invented at an impressive speed. Each single step, in particular along the Process Planning pipeline, can now count on dozens of methods that
Attene, Marco   +4 more
core   +5 more sources

The effect of variations of cese waste waste levels on marshall parameters in Ac-Wc layer [PDF]

open access: yes, 2021
In the asphalt pavement mixture, filler is needed to support the performance of the pavement construction in order to withstand traffic loads. Various types of fillers have been widely used, including rock ash, portland cement and others.
Baskoro, Imam Sindu   +3 more
core  

Role of Powder Properties and Flowability in Polymer Selective Laser Sintering—A Review

open access: yesKONA Powder and Particle Journal, 2023
Polymer selective laser sintering (SLS) is an additive manufacturing technology that involves the melting of a selected area of particles on the powder bed. A 3D component is then printed using layer-by-layer sintering of the powder bed.
Xi Guo, Brij M. Moudgil
doaj   +1 more source

Numerical modelling of heat transfer and experimental validation in Powder-Bed Fusion with the Virtual Domain Approximation [PDF]

open access: yes, 2019
Among metal additive manufacturing technologies, powder-bed fusion features very thin layers and rapid solidification rates, leading to long build jobs and a highly localized process.
Badia, Santiago   +9 more
core   +2 more sources

Development of Powder Bed Laser 3D Printing in Polar Coordinates and Its Comparison with Conventional Cartesian Laser 3D Printing

open access: yes, 2023
AbstractPowder bed laser 3D printing performed using polar coordinates, called Spiral Growth Manufacturing (SGM), allows manufacturing axisymmetric revolution parts in less time compared to conventional cartesian laser printing or Selective Laser Melting (SLM). In this work, a device to perform SGM operating under polar coordinates is presented.
Jorge Andrés Ramos-Grez   +4 more
openaire   +1 more source

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