Results 91 to 100 of about 8,497 (257)

Optimization of the solidification conditions by means of beam oscillation during laser beam welding of aluminum

open access: yesMaterials & Design, 2018
Aluminum (AA6016) sheets were welded in overlap configuration to investigate the influence of different beam oscillation patterns on the resulting temperature gradient, the local solidification rate and the resulting grain structure and to compare the ...
Christian Hagenlocher   +4 more
doaj   +1 more source

Ultra Short Pulse Laser Welding of Glass to Metal in the Low Fluence Regime

open access: yesLaser &Photonics Reviews, EarlyView.
Ultrashortpulse laser welding enables precise joining of glass and metal with minimal thermal damage. We introduce the TwoThresholds Criteria to identify suitable laser parameters by combining the nonlinearabsorption threshold in glass with the metalmodification fluence threshold.
Lukas Günther   +4 more
wiley   +1 more source

Laser assisted arc welding process for dry hyperbaric deep water application [PDF]

open access: yes, 2013
Hyperbaric Gas Metal Arc Welding (GMAW) is an important technology for repair welding of deep sea pipelines and linking of existing pipeline networks to newer ones through tie-ins and hot-tap welding.
Ofem, Usani Unoh
core  

Microstructure and properties of welds between 5754 Al alloys and AZ31 Mg alloys using a Yb:YAG laser [PDF]

open access: yes, 2014
The authors wish to thank Mr. Henri ANDRZEJEWSKI for his technical assistance in laser experiments. The authors wish to place their sincere thanks to Professor Philippe BOURNOT and Dr.
BANNOUR, Sana   +9 more
core   +1 more source

Improvements of the welding performance of plasma arcs by a superimposed fibre laser beam

open access: yes, 2022
Paper 82390DDetails and results of experimental investigations of a laser-supported plasma arc welding process are presented. The particular feature of the realized experimental set-up is the coaxial arrangement of a single-mode fibre laser beam through ...
Schnick, M.   +5 more
core   +1 more source

Laser beam characteristics of handheld laser beam welding systems

open access: yesWelding in the World
Abstract As the use of hand laser beam welding (HLBW) is rapidly increasing even in regulated areas, it is important to use a defined and robust configuration, including parameters, to ensure a reliable process. To this end, it is important to understand the influencing factors and their effects on the resulting properties.
Simon Jahn   +7 more
openaire   +1 more source

Experimental and Comparative Study of the Corrosion Behavior of Lean Duplex Stainless Steel in Seawater

open access: yesMaterials and Corrosion, EarlyView.
The localized corrosion behavior of lean duplex stainless steel EN 1.4062 is systematically compared with austenitic and higher‐alloyed duplex grades in natural seawater. A clear resistance ranking is established, highlighting EN 1.4062 as a cost‐effective alternative for limited marine exposure.
Mohammad Hassanzadeh   +4 more
wiley   +1 more source

Effect of Disk Laser Beam Offset on the Microstructure and Mechanical Properties of Copper—AISI 304 Stainless Steel Dissimilar Metals Joints

open access: yesMetals, 2020
Deoxidized oxygen free copper C12200, 1 mm in thickness, was welded to 1-mm thick AISI 304 stainless steel with disk laser. The butt-welded joints were produced with different welding parameters.
Miroslav Sahul   +5 more
doaj   +1 more source

Tuning the Morphology of Self‐Assembled Nanopatterns on MgO(001) Surfaces by Sequential Broad‐Beam Ion Irradiation

open access: yesphysica status solidi (RRL) – Rapid Research Letters, EarlyView.
A two‐step approach based on broad‐beam ion irradiation is demonstrated to produce fine‐tuned self‐assembled surface patterns on MgO(001). It shows an efficient route to modifying the crystalline MgO(001) surface topography in a controlled way, making use of its very specific behavior in terms of both the pattern morphology and patterning dynamics.
Denise J. Erb, Stefan Facsko
wiley   +1 more source

Actuation Strategies for Underwater Jet‐Propelled Soft Robots

open access: yesJournal of Field Robotics, EarlyView.
ABSTRACT This review article examines jet‐propulsion mechanisms in underwater soft robotic systems, focusing exclusively on physically fabricated and experimentally validated robots. Covering research published from 2013 to 2025, this study classifies and evaluates jet‐propulsion robots based on their actuation mechanisms.
Angel Kitone   +3 more
wiley   +1 more source

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