| 摘要 |
<p>PCT No. PCT/DE92/00950 Sec. 371 Date Jul. 13, 1994 Sec. 102(e) Date Jul. 13, 1994 PCT Filed Nov. 19, 1992 PCT Pub. No. WO93/09909 PCT Pub. Date May 27, 1993A method is disclosed for removing material from moving metal workpieces, in particular for cutting sheet metal. It entails preheating, without melting, the surface of the workpiece to a temperature at which ignition is triggered by a combustible gas directed onto the preheated section as a jet under pressure, while burnt material from the workpiece is blown away from the cut recess thus produced. In order to achieve smooth edges on large-gauge workpieces with a relatively high feed-rate, a laser beam is also directed onto the cutting front in the cut recess.</p> |
