SYSTEM AND METHOD FOR DETERMINING LASER WELDING QUALITY
PROBLEM TO BE SOLVED: To provide a system and a method for determining the laser welding quality capable of determining the welding quality with high accuracy and on a real-time basis based on the reflected laser beam and the welding beam. SOLUTION: The system 10 for determining the welding quality...
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| creator | AWANO YOSHIRO KITAYAMA KOJI ISHII YASUHIRO TEJIMA HIDEKI KAWAKI HIROYUKI MATSUMOTO SEIICHI SANPEI KAZUHISA |
| description | PROBLEM TO BE SOLVED: To provide a system and a method for determining the laser welding quality capable of determining the welding quality with high accuracy and on a real-time basis based on the reflected laser beam and the welding beam. SOLUTION: The system 10 for determining the welding quality comprises at least: a laser beam torch 1; a reflected laser beam receiving device 3 which receives the reflected laser beam from welded members W1, W2 to be relatively moved in the predetermined direction Y with respect to the laser beam torch 1 from a forward diagonally upper part of the welding advancing direction, and outputs the electric signal according to the intensity of the received beam; a welding beam receiving device 2 which receives the welding beam including the vapor beam generated by the melting and the evaporation of the welded members W1, W2 and the reflected laser beam in the coaxial direction with the laser beam radiating direction, and outputs the electric signal according to the intensity of the received beam; and a quality determining device 6 for determining the welding quality based on the signal intensity of both electric signals from both devices 2, 3 or changes thereof. COPYRIGHT: (C)2008,JPO&INPIT |
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SOLUTION: The system 10 for determining the welding quality comprises at least: a laser beam torch 1; a reflected laser beam receiving device 3 which receives the reflected laser beam from welded members W1, W2 to be relatively moved in the predetermined direction Y with respect to the laser beam torch 1 from a forward diagonally upper part of the welding advancing direction, and outputs the electric signal according to the intensity of the received beam; a welding beam receiving device 2 which receives the welding beam including the vapor beam generated by the melting and the evaporation of the welded members W1, W2 and the reflected laser beam in the coaxial direction with the laser beam radiating direction, and outputs the electric signal according to the intensity of the received beam; and a quality determining device 6 for determining the welding quality based on the signal intensity of both electric signals from both devices 2, 3 or changes thereof. 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| subjects | CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM |
| title | SYSTEM AND METHOD FOR DETERMINING LASER WELDING QUALITY |
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