... to combine the benefits of both laser welding and arc welding. In a hybrid laser welding process the laser beam interacts in the molten pool created by a secondary heat source, i.e., both heat sources are incident on a single weld pool (Mahrle and Beyer, 2006 and Bagger and Olsen, 2005). Hybrid laser-arc...

... because the phenomenon in molten pool is extremely fast. In this report, the mechanism of keyhole formation by laser welding on steel is simulated using particle method considering thermal conductivity, energy absorption ratio by laser radiation and vapor recoil pressure. From the result of simulation...

... the parallel electrodes. welding weld joint weld bead widening heat source welding condition weld bead rad weld bead shape seam welding welding process molten pool speed welding welding speed phase difference bead appearance electrode reduction metals & mining parallelized...

... are achieved by applying the fiber laser, which generates virtually no plasma. Laser tracking of the welding point, which fluctuates continuously, is also improved because the width of the molten pool is expanded by the twin-beam welding method. This method is also effective for reducing spatter. Thanks...

... standard deviation molten pool welding speed artificial intelligence welding skill welding torch semiautomatic welding e-training system middle skilled person E-Training System of Welding Work Yasuhisa Okumoto Osaka University, Joining and Welding Research Institute Mihogaoka, Ibaraki, Osaka...

... head welding experiment electromagnetic force permeability twin-wire submerged arc welding molten pool microstructure magnetic flux density magnetic field dimension frequency tsaw ems coil submerged arc welding Discussion about the Electromagnetic Stirring Head in Twin-wire Submerged...

... ABSTRACT In automatic butt welding of relatively thin plates, it is important to control welding conditions in order to obtain a sound full penetration weld. Recently, it was reported that there is an intimate relationship between the oscillation of the molten pool and penetration...

.... In this paper, in order to fully automize the welding of fLxed pipes, a new method is developed to control the back bead width by monitoring the shape and dimensions of the molten pool from the reverse side. Welding was performed in a pressure vessel that can pressurize up to 0.6MPa. Artificial Neural Network...

..., such as gap of groove, shape of groove and so on. Recently, It was reported that there is an intimate relationship between the oscillation of the molten pool and penetration. The frequency of a molten pool decreases drastically with transformation from partial penetration to full penetration. Accordingly...

... ABSTRACT An intelligent welding robot system with visual sensors is developed in order to realize full automatic welding of thin mild steel plates including automatic seam tracking and automatic control of welding conditions. A system to detect the shape and dimension of molten pool using CCD...

... ABSTRACT A new welding robot system with visual sensors is developed in order to realize a full automatic welding of thin mild steel plates, such as automatic seam tracking and automatic control of welding conditions. Especially, in this study, a system to detect the dimension of molten pool...

..., such as gap of groove, shape of groove and so on. Recently, it was reported that there is an intimate relationship between the oscillation of molten pool and penetration. That is to say, the ftoequency of a molten pool decreases drastically with transformation from partial penetration to full penetration...