Results 1 to 10 of about 21,667 (280)
Laser Welding of Fiber and Quartz Glass Ferrule
Micromachines, 2023 Optical fiber sensors fabricated by bonding have several limitations. To address these limitations, a CO2 laser welding process for an optical fiber and quartz glass ferrule is proposed in this study.
Wenhua Wang
doaj +3 more sources
Multi-stage keyhole evolution in fiber laser welding: An experimental study and theoretical analysis
Results in Physics, 2021 Laser welding with high beam intensity generates a metal vapor, which partially displaces the metal melt, forming a narrow keyhole-shaped fusion zone. This study conducted theoretical analysis of the keyhole formation processes within fiber laser welding,
Shihui Guo +4 more
doaj +3 more sources
Journal of Materials Research and Technology, 2020 Severe spattering is one of the common problems during fiber laser keyhole welding. In this study, the correlation between the spatter formation and laser-induced evaporation vapor on the front keyhole wall (FKW) was studied by changing the welding speed
Gaolei Zhang +4 more
doaj +3 more sources
The Effects of Laser Welding Direction on Joint Quality for Non-Uniform Part-to-Part Gaps [PDF]
Metals, 2016 Controlling part-to-part gaps is a crucial task in the laser welding of galvanized steel sheets for ensuring the quality of the assembly joint. However, part-to-part gaps are frequently non-uniform.
Rocku Oh, Duck Young Kim, Darek Ceglarek
doaj +3 more sources
Defence Technology, 2016 The influence of different welding processes on the mechanical properties and the corresponding variation in the microstructural features have been investigated for the dissimilar weldments of 18% Ni maraging steel 250 and AISI 4130 steel.
Jaiteerth R. Joshi +4 more
doaj +2 more sources
Remote Laser Welding with High Power Fiber Lasers
Engineering, 2013 The introduction of the high power fiber laser with brilliant beam quality has enabled the rapid development of remote laser welding (RLW). This paper presents a theoretical review of remote laser welding. As a promising technology, RLW offers increased flexibility, high operational speed, and reduced cycle time to process a wide range of workpieces ...
Paul Kah +3 more
openalex +3 more sources
A study on bead-on-plate welding of AA7075 using low power fiber laser
Journal of Mechanical Engineering and Sciences, 2016 Laser welding promises the best method to produce higher strength of aluminium joints compared to conventional arc welding process. Arc welding usually produces a large heat affected zone (HAZ), which leads to lower joint strength on aluminium alloys ...
M.N.M Salleh +3 more
doaj +3 more sources
, 2015 We demonstrate fabrication of a microtoroid resonator of a high-quality (high-Q) factor using femtosecond laser three-dimensional (3D) micromachining. A fiber taper is reliably assembled to the microtoroid using CO2 laser welding.
Zhiwei Fang +6 more
openalex +3 more sources
Ytterbium fiber laser welding of Ti6Al4V alloy
Journal of Manufacturing Processes, 2015 Abstract In this work, full penetration welding of 2 mm thick Ti6Al4V plates in butt configuration was performed by adopting a high brightness Yb fiber laser. Neither groove preparation nor filler groove was used. The influence of different welding conditions on the bead morphology, metallurgy and mechanical properties was discussed in detail.
Giuseppe Casalino +2 more
exaly +3 more sources
Journal of Materials Research and Technology, 2023 304 austenitic stainless steel with a thickness of 7.5 mm was welded by high-power fiber laser welding. The effects of main welding parameters, including laser power, welding speed, and defocusing amount, on weld formation were studied in detail.
Peikang Tao +3 more
doaj +3 more sources