| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a beam cutting-off method with which the yield can be improved so as not to float up chips onto a sheet. <P>SOLUTION: When a prescribed shape from the metal sheet 10 is cut off by using a laser beam 20, the center point B of gravity in the shape to be cut off is sought, and the cut-off is started from the center point C of arc or the contacting point (edge point) D of both sides away from the center point B of the gravity as farther as possible so that the chips surely drop down. <P>COPYRIGHT: (C)2005,JPO&NCIPI</p> |
