Results 61 to 70 of about 3,101,403 (200)
ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel +4 more
wiley +1 more source
Abstract The assembly of Gondwana involved several Pan‐African orogens, although their extension into ice‐covered Antarctica remains contentious. Particularly problematic is our understanding of the Kuunga orogenic system in East Antarctica, including its eroded architecture and temporal evolution. The remote Charcot Province, at the easternmost extent
Jacqueline A. Halpin +4 more
wiley +1 more source
Laser Beam Submerged Arc Hybrid Welding
AbstractThe laser beam submerged arc hybrid welding method originates from the knowledge that, with increasing penetration depth, the laser beam process has a tendency to pore formation in the lower weld regions. The combination with the energy efficient submerged arc process improves the degassing and reduces the tendency to pore formation.
Reisgen, Uwe +3 more
openaire +1 more source
Over the past 20 years, laser beam–electric arc hybrid welding has gained popularity, enabling high quality and efficiency standards needed for steel welds in structures subjected to severe working conditions.
Girolamo Costanza +5 more
doaj +1 more source
Welding process impact on residual stress and distortion [PDF]
Residual stress and distortion continue to be important issues in shipbuilding and are still subject to large amounts of research. This paper demonstrates how the type of welding process influences the amount of distortion.
Colegrove, Paul A. +18 more
core +1 more source
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir +5 more
wiley +1 more source
Laser Beam Submerged Arc Hybrid Welding
AbstractThe laser beam-submerged arc hybrid welding method originates from the knowledge that, with increasing penetration depth, the laser beam process has a tendency to pore formation in the lower weld regions. The coupling with the energy-efficient submerged-arc process improves degassing and reduces the tendency to pore formation.
Reisgen, Uwe (Prof. Dr.-Ing.) +5 more
openaire +2 more sources
This work reviews the current state of development in laser-plasma welding processes for steels and alloys. The novelty of the work lies in revealing the effectiveness of the combined effect of compressed arc plasma and laser radiation with a wavelength ...
Volodymyr KORZHYK +8 more
doaj +1 more source
Investigation of humping defect formation in a lap joint at a high-speed hybrid laser-GMA welding
Productivity rise can be realized at high-speed welding, but in a practice, the constraints emanate from the tolerance welding speed limit beyond which generate humping defects and the likes.
Philip Yamba +4 more
doaj +1 more source
Correlation analysis among multiple images of plasma induced during fiber laser–arc hybrid welding
In this study, the multiple imaging morphological features of plasma have been observed by using the multiple-imaging technique during the fiber laser–tungsten insert gas (TIG) arc hybrid welding.
Jianglin Zou, Lida Wang, Rongshi Xiao
doaj +1 more source

