Results 1 to 10 of about 7,097 (199)

Effect of welding parameters on spatter formation in full-penetration laser welding of titanium alloys

Journal of Materials Research and Technology, 2021
The spatter formation process was observed by high-speed imaging during the full-penetration laser welding (FPLW) process of 4 mm-thick TC4 alloy plates. The effects of process parameters on spatter formation were studied.
Hao Cheng, Liangang Zhou, Qijun Li, Dong Du, Baohua Chang   +4 more
doaj   +3 more sources

Effects of Longitudinal External Magnetic Field on Metal Transfer Behavior and Spatter Formation in CO₂ Arc Welding. [PDF]

Materials (Basel)
Excessive spatter formation in conventional CO2 arc welding significantly diminishes welding quality and efficiency, posing a critical challenge for industrial applications. To address this issue, this study investigated the mechanisms of metal transfer behavior and spatter formation under the influence of a longitudinal magnetic field (LMF) using a ...
Le DK, Tashiro S, Xu B, Murphy AB, Trinh QN, Bui VH, Yuji T, Mamat SB, Yamanaka K, Tanaka M, Xiao L.   +10 more
europepmc   +5 more sources

Interaction between Local Shielding Gas Supply and Laser Spot Size on Spatter Formation in Laser Beam Welding of AISI 304 [PDF]

Applied Sciences, 2023
Background. Spatter formation at melt pool swellings at the keyhole rear wall is a major issue for laser deep penetration welding at speeds beyond 8 m/min. A gas nozzle directed towards the keyhole, that supplies shielding gas locally, is advantageous in
Christian Diegel, Thorsten Mattulat, Klaus Schricker, Leander Schmidt, Thomas Seefeld, Jean Pierre Bergmann, Peer Woizeschke   +6 more
doaj   +2 more sources

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

Sensors
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, Evgenii Klokov, Dmitrii Krasnov, Mikhail Sokolov   +3 more
doaj   +2 more sources

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

Sensors
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, Jinoop Arackal Narayanan, Mark Zimny, Ehsan Toyserkani   +3 more
doaj   +2 more sources

Spatter Formation and Splashing Induced Defects in Laser-Based Powder Bed Fusion of AlSi10Mg Alloy: A Novel Hydrodynamics Modelling with Empirical Testing [PDF]

Metals, 2021
Powder spattering and splashing in the melt pool are common phenomena during Laser-based Powder Bed Fusion (LPBF) of metallic materials having high fluidity. For this purpose, analytical and computational fluid dynamics (CFD) models have been deduced for
Asif Ur Rehman, Muhammad Arif Mahmood, Peyman Ansari, Fatih Pitir, Metin Uymaz Salamci, Andrei C. Popescu, Ion N. Mihailescu   +6 more
doaj   +2 more sources

Spatter Formation in Laser Welding with Beam Oscillation

Physics Procedia, 2013
AbstractThe investigation presented in this paper aims on a quantitative analysis of spatter formation in laser beam welding with superposed beam oscillation. After a discussion of design space limitations, which result from the scanner dynamics and theoretical considerations on the welding process itself, an optimal experimental design is created.
Schweier, M., Heins, J.F., Haubold, M.W., Zaeh, M.F.   +3 more
openaire   +2 more sources

Powder incorporation and spatter formation in high deposition rate blown powder directed energy deposition

Additive Manufacturing, 2020
Abstract A high deposition rate blown powder directed energy deposition process is presented. Clad tracks are deposited and the process is observed by high-speed imaging. An island of unmelted powder forms inside the melt pool, in the centre of the laser spot, which can be attributed to the highly focussed powder flow and the laser beam configuration
Himani Siva Prasad, Frank Brueckner, Alexander F.H. Kaplan   +2 more
openaire   +2 more sources

High-Speed X-Ray Analysis of Spatter Formation in Laser Welding of Copper

Physics Procedia, 2013
AbstractDue to their very good electrical and thermal conductivity copper materials are more and more demanded for industrial applications. For the assembly of copper based parts an effective and reliable welding process is required. At lower feed rates and high penetration depth respectively, welds in copper suffer from many weld defects such as pores
Heider, A., Sollinger, J., Abt, F., Boley, M., Weber, R., Graf, T.   +5 more
openaire   +2 more sources

Spatter formation during laser beam melting of AlSi10Mg and effects on powder quality

Procedia CIRP, 2018
Abstract Cost and resource efficiency of Laser Beam Melting (LBM) highly depend on powder recycling procedures. Non-solidified powder can be sieved and reused in subsequent build cycles. However, due to quality concerns, powder recycling is not commonly practiced. One effect, which can impair the powder quality, lies in the formation and insertion of
M. Lutter-Günther, M. Bröker, T. Mayer, S. Lizak, C. Seidel, G. Reinhart   +5 more
openaire   +2 more sources