公开(公告)号：US08097830B2

公开(公告)日：2012-01-17

申请号：US10508662

申请日：2003-02-28

申请人： Ludger Wöeste ,  Jean-Pierre Wolf

发明人： Ludger Wöeste ,  Jean-Pierre Wolf

IPC分类号： B23K26/00

CPC分类号： B23K26/04 ,  B23K26/0624

摘要： The invention relates to a method for material processing and/or material analysis of an object (18) made from condensed matter by means of a laser (12). A laser pulse (14) is generated by a laser, emitted in the direction of the object. The laser pulse is spatially and temporally focussed such as to give a peak power for the laser pulse at a point between the laser and the object which exceeds the critical power for a self-focussing effect of the laser pulse. The laser pulse thus forms a filament (88) of high power density. The filament (88) is directed at the object and generates an aggregation state change there (evaporation or plasma formation) for a part of the material of the object. The method can be applied to both material processing (cutting, drilling, welding, hardening) and material analysis (analysis of the plasma light).

摘要翻译： 本发明涉及一种用于通过激光（12）由冷凝物质制成的物体（18）的材料处理和/或材料分析方法。 通过激光产生激光脉冲（14），该激光在物体的方向上发射。 激光脉冲在空间和时间上被聚焦，以便在激光和物体之间的点处给出激光脉冲的峰值功率，该激光脉冲超过激光脉冲的自聚焦效应的临界功率。 因此，激光脉冲形成高功率密度的灯丝（88）。 灯丝（88）被引导到物体，并且对于物体的一部分材料产生聚集状态改变（蒸发或等离子体形成）。 该方法可应用于材料加工（切割，钻孔，焊接，硬化）和材料分析（等离子体光的分析）。