Results 31 to 40 of about 5,519 (245)

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

SUMMARY OF KNOWLEDGE ABOUT 3D PRINTING AND ITS USE IN DENTISTRY

open access: yesČeská Stomatologie a Praktické Zubní Lékařství, 2021
Introduction, aim: The rise of research papers and investments made into 3D printing are the proof of the increased interest about this manufacturing method. The American Charles W. Hull is considered to be the inventor with the first patent in the field.
N Savková   +5 more
doaj   +1 more source

3D printing of bulk thermoelectric materials: Laser powder bed fusion of N-type silicon germanium

open access: yesMaterials Science and Engineering: B, 2023
Among Additive Manufacturing (AM) methods, Laser Powder Bed Fusion (L-PBF), also called Selective Laser Melting (SLM), is prevalent to printing complex metal parts in small and medium series. Recent studies in L-PBF processing develops the manufacturing of new materials, including thermoelectric (TE) materials. This study presents manufacturing of an N
Baudry, Maxime   +2 more
openaire   +2 more sources

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

Powder Bed Monitoring Using Semantic Image Segmentation to Detect Failures during 3D Metal Printing

open access: yesSensors, 2023
Monitoring the metal Additive Manufacturing (AM) process is an important task within the scope of quality assurance. This article presents a method to gain insights into process quality by comparing the actual and target layers. Images of the powder bed were captured and segmented using an Xception–style neural network to predict the powder and part ...
Anna-Maria Schmitt   +3 more
openaire   +4 more sources

Effects of Auto-Stirring on Powder Dispensing Rate Consistency in Hopper-Based Binder Jetting 3D Printing with Cohesive Powder

open access: yesPowders
In hopper-based binder jetting 3D printing, a consistent powder dispensing rate from the hopper to the powder bed is essential for reliable printing. This study investigates the effects of adding a custom-built auto-stirrer to the hopper system on the ...
Jackson Sanders   +4 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

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

Powder Bed Fusion 3d Printing and Performance of Stainless Steel Bipolar Plate with Rectangular Micro Channels and Ribs

open access: yesSSRN Electronic Journal, 2022
For the high performance of a fuel cell where a bipolar plate (BP) is applied, rectangular channel, microchannel width, micro-rib, enough channel quantity, adequate channel depth, and innovative flow field design should be realized from a configuration standpoint.
Chul Kyu Jin   +2 more
openaire   +2 more sources

On the Lightweight Potential of Laser Additive Manufactured NiTi Triply Periodic Minimal Sheet Lattices

open access: yesAdvanced Engineering Materials, EarlyView.
This study explores the lightweight potential of laser additive‐manufactured NiTi triply periodic minimal surface sheet lattices. It systematically investigates the effects of relative density and unit cell size on surface quality, deformation recovery, compression behavior, and energy absorption.
Haoming Mo   +3 more
wiley   +1 more source

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