公开(公告)号：US09770784B2

公开(公告)日：2017-09-26

申请号：US14728024

申请日：2015-06-02

申请人： EWAG AG

发明人： Christoph Pluess ,  Claus Dold ,  Gregory Eberle

IPC分类号： B23K26/08 ,  B23K26/04 ,  B23K26/38 ,  B23K26/36 ,  B23K31/02 ,  B23K26/082 ,  B23K26/044 ,  B23K26/0622 ,  B23K101/20

CPC分类号： B23K26/38 ,  B23K26/044 ,  B23K26/0622 ,  B23K26/082 ,  B23K26/0823 ,  B23K26/083 ,  B23K26/36 ,  B23K31/025 ,  B23K2101/20

摘要： The invention relates to a method and a laser machining device 10 for machining a workpiece 13. The laser machining device 10 has a laser 11 for generating a laser beam 12, which is deflected by way of a deflecting device 15 in accordance with a pattern defined by a control unit 14 and is directed onto a workpiece surface 17 of a workpiece 13, which surface is to be machined. The point of impingement 18 of the deflected laser beam 12b on the workpiece surface 17 is guided along at least one spiral path within a circular hatched area 16. The spiral path 19 is characterized by spiral path parameters. One spiral path parameter is the line spacing a between neighboring points of intersection P of the spiral path 19 with an axis running through the center point M of the spiral path 19.

公开(公告)号：US10695869B2

公开(公告)日：2020-06-30

申请号：US15399850

申请日：2017-01-06

申请人： EWAG AG

发明人： Christoph Pluss ,  Bruno Frei ,  Claus Dold ,  Maximilian Warhanek ,  Christian Walter

IPC分类号： B23K26/364 ,  B23K26/0622 ,  B23K26/08 ,  B23K26/40 ,  B23K26/082 ,  B23K101/20 ,  B23K103/18

摘要： A process to produce a workpiece surface or a groove inner surface on a rod-shaped, especially cylindrical workpiece. From the workpiece, a rotary tool is supposed to be produced. The material removal is done using laser beam pulses, which are directed through a deflection device onto points of incidence within a pulse area with a specified outside contour on the workpiece. Multiple machine axis drives position the workpiece and the deflection device relative to one another so that the pulse area is oriented essentially at right angles to the emission direction of the laser beam pulses and at right angles to the section of the tool surface that has already been produced and that borders the pulse area. While the material is being removed, the at least one machine axis drive moves the pulse area relative to the workpiece along a specified path of motion while maintaining the orientation.