Melt pool and keyhole behaviour analysis for deep penetration laser welding
نویسندگان
چکیده
منابع مشابه
Keyhole Double-sided Arc Welding Process for Deep Narrow Penetration
In regular arc welding, the arc heat is transferred from the surface of the workpiece to melt it. In keyhole plasma arc welding, the workpiece is melted by the plasma jet which heats the wall of the keyhole along the thickness direction. Penetration is achieved with reduced heat input. However, the plasma jet only gains its energy in the arc before reaching the keyhole. In the keyhole where no ...
متن کاملWeld pool and keyhole dynamic analysis based on visual system and neural network during laser keyhole welding
Luo, Masiyang, "Weld pool and keyhole dynamic analysis based on visual system and neural network during laser keyhole welding" (2014). Open Access Theses. 652.
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In this paper several approaches for the detection of the melt pool circle (i.e. its position and radius) in laser welding applications are described. Instead of indirectly examining the evolution of the melt pool via the radiation of plasma that is generated during the welding process, we use a direct view onto the melt pool that is possible in a narrow wavelength band with a coaxial aligned h...
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ژورنال
عنوان ژورنال: Journal of Physics D: Applied Physics
سال: 2010
ISSN: 0022-3727,1361-6463
DOI: 10.1088/0022-3727/43/44/445501