| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a device to sever a flat workpiece of a brittle material more than once by a laser. <P>SOLUTION: The following is an aspect of saving time by the device. A thermomechanical stress is induced by the laser, particularly, in alternate directions, along severing lines of the same orientation, by which the flat workpiece of the brittle material can be severed. The device has two coolant nozzles 6.1, and 6.2, which direct a coolant selectively to the workpiece. The nozzles 6.1 and 6.2 are preferably coupled with an optical means 10 to form a laser beam, and are attached rotatably taking the axis 7 of a laser head 1 as a center. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
