| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an ultra thin sheet welding method by semiconductor laser in which a synthetic beam is formed by space coupling of combining a plurality of basic beams and by forming an irradiation beam adaptable to a joining shape of the surface to be welded of an ultra thin metallic sheet, and also to provide an ultra high-speed laser micro welding apparatus related to the method. <P>SOLUTION: The elliptical beams L1, L2, L3 having an identical wavelength, a beam width 0.05-0.3 mm and a beam length 0.3-1.5 mm oscillated from at least three sets of ultra small semiconductor lasers LD1, LD2, LD3 are combined by space coupling SC to form synthetic beams LO1, LO2, LO3, with ultra high-speed welding performed on an ultra thin metallic sheet of 100-10μm. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
