Results 1 to 10 of about 13,123 (183)

A Novel Spatter Detection Algorithm for Real-Time Quality Control in Laser-Directed Energy Deposition-Based Additive Manufacturing [PDF]

open access: yesSensors
Laser-Directed Energy Deposition (LDED) has recently been widely used for 3D-printing metal components and repairing high-value parts. One key performance indicator of the LDED process is represented by melt pool stability and spatter behavior.
Farzaneh Kaji   +3 more
doaj   +2 more sources

Advancing Defect Detection in Laser Welding: A Machine Learning Approach Based on Spatter Feature Analysis [PDF]

open access: yesSensors
Full-penetration laser welding (FPLW) is increasingly adopted in manufacturing pipelines, yet its industrial scalability is constrained by in-process defect formation, particularly incomplete penetration.
Gleb Solovev   +3 more
doaj   +2 more sources

Experimental investigation into the spatter particle behavior of maraging steel during selective laser melting

open access: yesJournal of Advanced Mechanical Design, Systems, and Manufacturing, 2021
The quality of built parts by selective laser melting (SLM) relies on the comprehension of the phenomena that takes place during the melting and solidification of the metal powder.
Tatsuaki FURUMOTO   +7 more
doaj   +1 more source

Lava Flow Hazard and Its Implication in Geopark Development for the Active Harrat Khaybar Intracontinental Monogenetic Volcanic Field, Saudi Arabia

open access: yesLand, 2023
Harrat Khaybar is an active monogenetic volcanic field in western Saudi Arabia that hosts spectacular monogenetic volcanoes and a Holocene volcanic cone with extensive lava fields.
Károly Németh, Mohammed Rashad Moufti
doaj   +1 more source

Investigation of Spatter Trajectories in an SLM Build Chamber under Argon Gas Flow

open access: yesMetals, 2022
Spatter particles ejected from the melt pool during selective laser melting processes can get redeposited on the build plate region and impact final part quality.
Awad B. S. Alquaity, Bekir S. Yilbas
doaj   +1 more source

A comprehensive characterization of the effect of spatter powder on IN939 parts fabricated by laser powder bed fusion

open access: yesMaterials & Design, 2023
This study is focused on a comprehensive characterization of virgin and spatter IN939 powders and the effects of a certain amount of spatter powder on the part quality of IN939 fabricated by the L-PBF process.
Merve Nur Doğu   +11 more
doaj   +1 more source

Deep Learning Based Monitoring of Spatter Behavior by the Acoustic Signal in Selective Laser Melting

open access: yesSensors, 2021
As one of the most promising metal additive manufacturing (AM) technologies, the selective laser melting (SLM) process has high expectations ofr its use in aerospace, medical, and other fields.
Shuyang Luo   +4 more
doaj   +1 more source

A Review of Spatter in Laser Powder Bed Fusion Additive Manufacturing: In Situ Detection, Generation, Effects, and Countermeasures

open access: yesMicromachines, 2022
Spatter is an inherent, unpreventable, and undesired phenomenon in laser powder bed fusion (L-PBF) additive manufacturing. Spatter behavior has an intrinsic correlation with the forming quality in L-PBF because it leads to metallurgical defects and the ...
Zheng Li   +18 more
doaj   +1 more source

CFD–DPM Simulation Study of the Effect of Powder Layer Thickness on the SLM Spatter Behavior

open access: yesMetals, 2022
Selective Laser Melting (SLM) has significant advantages in manufacturing complex structural components and refining the alloy microstructure; however, spatter, as a phenomenon that accompanies the entire SLM forming process, is prone to problems such as
Liu Cao, Qindan Zhang, Ruifan Meng
doaj   +1 more source

Extending powder lifetime in additive manufacturing: Chemical etching of stainless steel spatter

open access: yesAdditive Manufacturing Letters, 2022
In laser powder bed fusion, unconsolidated metal powder on the build plate tends to comprise a proportion of oxidised powder after repeated use. This is generally caused by the generation of oxidised spatter particles during processing which can ...
James W. Murray   +4 more
doaj   +1 more source

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