LASER WELDING METHOD, LASER WELDING DEVICE, AND COMPUTER PROGRAM PRODUCT
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United States of America Patent
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Issued Date -
Aug 15, 2024
app pub date -
Dec 27, 2023
filing date -
Feb 9, 2023
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Abstract
A laser welding method is a laser irradiating method for irradiating with a laser beam an irradiation target surface of a welding target formed by a plurality of overlaid metal plates, and welding the plurality of metal plates, the plurality of metal plates include a first metal plate that forms the irradiation target surface, and a second metal plate, and the laser welding method includes: a first process of irradiating the irradiation target surface with the laser beam, thereby welding the plurality of metal plates, and forming a welded part; and a second process of irradiating with the laser beam a target range of the irradiation target surface including at least part of the welded part, and remelting at least the first metal plate without remelting the second metal plate among the plurality of metal plates after the first process.
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