نتایج جستجو برای: laser beam welding

تعداد نتایج: 295760  

Journal: :Journal of manufacturing and materials processing 2021

The use of shielding gases in laser beam welding is particular interest for materials interacting with ambient oxygen, e.g., copper, titanium or high-alloy steels. These are often processed by remote where short welds (e.g., up to 40 mm seam length) commonly used. Such setups prevent gas nozzles from being carried along on the optics due scanner application and a small area needs be served loca...

Journal: :Journal of Physics D: Applied Physics 2000

2016
Johannes Günther Patrick M. Pilarski Gerhard Helfrich Hao Shen Klaus Diepold

Laser welding is a widely used but complex industrial process. In this work, we propose the use of an integrated machine intelligence architecture to help address the significant control difficulties that prevent laser welding from seeing its full potential in process engineering and production. This architecture combines three contemporary machine learning techniques to allow a laser welding c...

Journal: :Faraday discussions 2014
Xin Liu Stephan Prinz Heino Besser Wilhelm Pfleging Markus Wissmann Christoph Vannahme Markus Guttmann Timo Mappes Sebastian Koeber Christian Koos Uli Lemmer

The integration of organic semiconductor distributed feedback (DFB) laser sources into all-polymer chips is promising for biomedical or chemical analysis. However, the fabrication of DFB corrugations is often expensive and time-consuming. Here, we apply the method of laser-assisted replication using a near-infrared diode laser beam to efficiently fabricate inexpensive poly(methyl methacrylate) ...

Journal: :QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY 1985

Journal: :Journal of Laser Applications 2010

Journal: :Journal of Materials Research and Technology 2019

Journal: :IOP conference series 2021

Abstract Crack formation process in the Ti-23Al-23Nb-1.4V-0.8Zr-0.4Mo-0.4Si (at.%) alloy based on orthorhombic titanium aluminide (Ti 2 AlNb), especially weld zone (WZ), heat-affected (HAZ), and base metal (BM), during laser beam welding (LBW) at room temperature was considered. It determined that crack spread WZ throughout crystallites of ?-phase. In HAZ, cracks globular ?-phase crystals body ...

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