Results 21 to 30 of about 21,667 (280)
Fiber laser technologies for photoacoustic microscopy
Fiber laser technology has experienced a rapid growth over the past decade owing to increased applications in precision measurement and optical testing, medical care, and industrial applications, including laser welding, cleaning, and manufacturing.
Long Jin, Yizhi Liang
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Weld root instabilities in fiber laser welding
Fiber laser welding and fiber laser-arc hybrid welding have been developed into very useful industrial processes over the past few years. However, the use of fiber lasers can be associated with quality problems at the weld root such as intermittent penetration, melt ejection, and humping.
Powell, J Powell, John +7 more
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The Effect of Wobbling on the Welding Characteristics in Al/Cu Fiber Laser Welded Joints
Abstract The IR laser welding of aluminum and copper materials for lithium-ion battery cells has limitation due to unsatisfactory joints strength caused by their low absorptivity and high reflectivity. To overcome these problems, this study has applied beam oscillation to increase the joint area of welded joints.
Hye-Seul Yoon, Hee-Seon Bang
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High-power fiber laser welding is an efficient and effective way to produce heavy section structures. However, there is a significant challenge in producing the welds with free of imperfections such as nail-head-shaped welds, spatters, and root sagging ...
Mingjun Zhang +4 more
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Invited Article: CO_2 laser production of fused silica fibers for use in interferometric gravitational wave detector mirror suspensions [PDF]
In 2000 the first mirror suspensions to use a quasi-monolithic final stage were installed at the GEO600 detector site outside Hannover, pioneering the use of fused silica suspension fibers in long baseline interferometric detectors to reduce suspension ...
Barton, M. A. +19 more
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Laser Beam Welding of CubeSat 1U Structure Parts Obtained by Powder Bed Fusion
This study contributes to a possible methodology for manufacturing CubeSats using additive manufacturing and laser beam welding. Titanium connectors were constructed by selective laser melting and electron beam melting and characterized from a ...
Rafael Humberto Mota de Siqueira +2 more
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The effect of fiber laser parameters on microhardness and microstructure of duplex stainless steel
An investigation was implement to study the influence of laser power, and speed of the welding on hardness, microstructure, and penetration of laser welding bead on plate duplex stainless steel, which is not exhibited so far.
Mohammed Ghusoon R. +3 more
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Laser micro welding with fiber lasers for battery and fuel cell based electromobility
New challenges are arising within the joining processes in the field of electromobility. Joining highly reflective metals and dissimilar materials such as copper and aluminum – often encountered in battery electrical vehicles – is viewed as a challenging
E Haddad +5 more
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Picosecond laser welding of similar and dissimilar materials [PDF]
We report picosecond laser welding of similar and dissimilar materials based on plasma formation induced by a tightly focused beam from a 1030 nm, 10 ps, 400 kHz laser system.
Carter, Richard M. +4 more
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A heat source model is the key issue for laser welding simulation. The Gaussian heat source model is not suitable to match the actual laser weld profile accurately.
Peizhi Li +5 more
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