Results 11 to 20 of about 15,713 (212)
Development of High-efficiency / High-quality Hot-wire Laser Fillet Welding Process
QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 2011 The aim of this paper is to develop the high efficiency and high quality fillet welding technique using the combination of hot wire system and Laser welding. The melting of filler wire depends on wire current and there is an adequate vale of the current in each wire feeding speed.
Kota Kadoi +5 more
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Development of Hot-wire Laser Welding Method for Lap Joint of Steel Sheet with Wide Gap
QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 2011 In this study, hot-wire laser welding was used to develop the welding method for the lap joint of 980MPa class high-strength steel sheets (thickness: 1 mm) with a wide gap. Detailed phenomena of wire melting and bead formation during welding were understood using the high-speed camera, and then the optimum welding condition and the mechanical ...
M. Yamamoto +6 more
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Hot-wire Laser Welding Process Using Laser Diode for Large-Diameter Pipe with Narrow Gap Joint
QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 2015 We investigated a hot-wire laser welding method using a laser diode with a rectangular laser beam to weld a large-diameter pipe with a narrow gap. First, welding trials using plate specimens were performed to obtain the optimum welding conditions using a defocused beam.
Masatomo Todo +6 more
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QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 2015 Shop primer is a predominant cause of pits and blowholes during fillet welding using a conventional CO2 arc welding process. The hot-wire laser welding process for fillet welds employs a reflected laser beam incident on a molten pool for melting the base metal, and produces a weld bead with an extremely low dilution of base metal.
Okita Daiki +4 more
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Development of automation and monitoring methods for narrow-gap hot-wire laser welding using camera images [PDF]
Welding in the WorldAbstractIn this study, an image-based method was developed for hot-wire laser narrow gap welding. The welding process was monitored based on image information processed using semantic segmentation, a method of classifying images by pixel. To control the welding position, an experimental system was configured that automatically follows the welding ...
Keita Marumoto +5 more
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QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 2011 High-power and high-brightness lasers such as fiber laser or disk laser are promising as desirable heat sources for deeply-penetrated welds, owing to their superior power density. However, their tightly-focused beam spots have low gap tolerance in butt welding.
Terumasa Ohnishi +3 more
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Melting by Reflected Laser Beam during Vertical Welding via Hot-Wire Laser Welding
QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 2019 Sittisak Charunetratsamee +3 more
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QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 2019 Sittisak Charunetratsamee +3 more
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Development of a Heat Source Model for Narrow-gap Hot-wire Laser Welding
QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 2013 Rittichai Phaonaim +4 more
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QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY, 2015 Eakkachai Warinsiriruk +10 more
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