JOINING QUALITY JUDGING METHOD IN LASER MELDING
PROBLEM TO BE SOLVED: To provide a judge method capable of accurately judging the joining quality in the laser welding of a resin member in a non-destructive manner. SOLUTION: An uncolored base material is used in a cover 3 to perform the laser welding of the cover 3 and a case 2. After the laser we...
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| creator | FUKAYA KANEHIRO OZEKI MASAJI SAKAI TOMOHIRO |
| description | PROBLEM TO BE SOLVED: To provide a judge method capable of accurately judging the joining quality in the laser welding of a resin member in a non-destructive manner. SOLUTION: An uncolored base material is used in a cover 3 to perform the laser welding of the cover 3 and a case 2. After the laser welding, the image of the welded part is taken in by a CCD camera 50. Thereafter, the taken-in image is binarized by a personal computer 55 so as to discriminate between the part of the case 2 seen through the cover 3 and another part. Based on whether or not the binarized image thus acquired coincides with a preliminarily stored reference pattern image, the quality of a joined state is judged. COPYRIGHT: (C)2004,JPO |
| format | Patent |
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SOLUTION: An uncolored base material is used in a cover 3 to perform the laser welding of the cover 3 and a case 2. After the laser welding, the image of the welded part is taken in by a CCD camera 50. Thereafter, the taken-in image is binarized by a personal computer 55 so as to discriminate between the part of the case 2 seen through the cover 3 and another part. Based on whether or not the binarized image thus acquired coincides with a preliminarily stored reference pattern image, the quality of a joined state is judged. 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SOLUTION: An uncolored base material is used in a cover 3 to perform the laser welding of the cover 3 and a case 2. After the laser welding, the image of the welded part is taken in by a CCD camera 50. Thereafter, the taken-in image is binarized by a personal computer 55 so as to discriminate between the part of the case 2 seen through the cover 3 and another part. Based on whether or not the binarized image thus acquired coincides with a preliminarily stored reference pattern image, the quality of a joined state is judged. COPYRIGHT: (C)2004,JPO</abstract><edition>7</edition><oa>free_for_read</oa></addata></record> |
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| subjects | AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CLADDING OR PLATING BY SOLDERING OR WELDING CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULARARTICLES MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SOLDERING OR UNSOLDERING TRANSPORTING WELDING WORKING BY LASER BEAM WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL |
| title | JOINING QUALITY JUDGING METHOD IN LASER MELDING |
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