| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a laser beam welding method and device capable of welding the outer periphery or the inner periphery of a work simultaneously, uniformly, and at high speed, while controlling revolution of the work and a laser beam generator. <P>SOLUTION: The device for laser beam welding includes: a rotary table 9 for rotatably supporting a work W; and a moving table 7 for moving each of a plurality of laser beam generators 3, which are arranged around the outer periphery of the work, inward or outward of the radiation whose central position is the work W. The work W rotating at high speed is welded while repeatedly irradiating the same portion of the work W with each of the laser beams emitted from a plurality of laser beam generators 3. At that time, control is performed according to the size and the shape of the work W so that the distances between the laser beam generators 3 and the rotating work W are equalized. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
