Results 41 to 50 of about 70,133 (297)

MECHANICAL PROPERTIES OF HONEYCOMB STRUCTURED ZR-BASED BULK METALLIC GLASS SPECIMENS FABRICATED BY LASER POWDER BED FUSION

South African Journal of Industrial Engineering, 2019
Laser powder bed fusion of bulk metallic glasses offers great potential to overcome the existing restrictions of the geometrical size and complexity of bulk metallic glasses in conventional manufacturing routes due to high cooling rates during laser ...
Wegner, J. , Frey, M. , Stiglmair, P. , Kleszczynski, S. , Witt, G. , Busch, R.   +5 more
doaj   +1 more source

Dimensionless process development for lattice structure design in laser powder bed fusion

Materials & Design, 2020
Laser powder bed fusion enables the fabrication of complex components such as thin-walled cellular structures including lattice or honeycomb structures.
Alexander Großmann, Jan Mölleney, Tilman Frölich, Holger Merschroth, Julian Felger, Matthias Weigold, Axel Sielaff, Christian Mittelstedt   +7 more
doaj   +1 more source

A numerical study on the packing quality of fibre/polymer composite powder for powder bed fusion additive manufacturing

Virtual and Physical Prototyping, 2021
A discrete element model has been developed to simulate the packing process of fibre/polymer composite powder for powder bed fusion additive manufacturing.
Pengfei Tan, Fei Shen, Wei Shian Tey, Kun Zhou   +3 more
doaj   +1 more source

Criticality of porosity defects on the fatigue performance of wire + arc additive manufactured titanium alloy [PDF]

, 2019
This study was aimed at investigating the effect of internal porosity on the fatigue strength of wire + arc additive manufactured titanium alloy (WAAM Ti-6Al-4V).
Awd, Mustafa, Biswal, Romali, Ding, Jialuo, Syed, Abdul, Walther, Frank, Williams, Stewart, Zhang, Xiang   +6 more
core   +2 more sources

Material-agnostic machine learning approach enables high relative density in powder bed fusion products

Nature Communications, 2023
This study introduces a method that is applicable across various powder materials to predict process conditions that yield a product with a relative density greater than 98% by laser powder bed fusion.
Jaemin Wang, Sang Guk Jeong, Eun Seong Kim, Hyoung Seop Kim, Byeong-Joo Lee   +4 more
doaj   +1 more source

Atomic-scale grain boundary engineering to overcome hot-cracking in additively-manufactured superalloys [PDF]

, 2019
There are still debates regarding the mechanisms that lead to hot cracking in parts build by additive manufacturing (AM) of non-weldable Ni-based superalloys.
Abed, Stéphane, Blandin, Jean-Jacques, Chauvet, Edouard, da Silva, Alisson Kwiatkowski, Dendievel, Rémy, Gault, Baptiste, He, Junyang, Kontis, Paraskevas, Martin, Guilhem, Peng, Zirong, Raabe, Dierk, Tassin, Catherine   +11 more
core   +2 more sources

A Design Method to Exploit Synergies Between Fiber-Reinforce Composites and Additive Manufactured Processes [PDF]

, 2019
This paper proposes a design method for devices composed of long fiber-reinforced composites (FRC) and additive manufactured (AM) parts. Both FRC and AM processes have similar application characteristics: suitable for small production volumes, additive ...
Ethan Goh, Florian Doetzer, Hassani, Vahid, Sufiyan Sarwan, William Rosen, David   +4 more
core   +1 more source

In Situ Monitoring Systems of The SLM Process: On the Need to Develop Machine Learning Models for Data Processing

Crystals, 2020
In recent years, technological advancements have led to the industrialization of the laser powder bed fusion process. Despite all of the advancements, quality assurance, reliability, and lack of repeatability of the laser powder bed fusion process still ...
Pinku Yadav, Olivier Rigo, Corinne Arvieu, Emilie Le Guen, Eric Lacoste   +4 more
doaj   +1 more source

A layer-wise multi-defect detection system for powder bed monitoring: Lighting strategy for imaging, adaptive segmentation and classification

Materials & Design, 2021
Powder bed defects usually inevitably appear in the process of powder spreading during laser powder bed fusion owing to the characteristics of the powder material and the performance of the spreading equipment. This may lead to instability with regard to
Binbin Shi, Zhehan Chen
doaj   +1 more source

Principles of Laser Micro Sintering [PDF]

, 2006
Laser Micro Sintering was introduced to the international community of freeform fabrication engineers in 2003 and has since been employed for a variety of applications.
Brabant, Th., Ebert, R., Exner, H., Hartwig, L., Horn, M., Klötzer, S., Regenfuss, P., Streek, A.   +7 more
core   +1 more source