| CPC B23K 26/402 (2013.01) [B23K 26/032 (2013.01); B23K 2103/42 (2018.08)] | 12 Claims |
|
1. A method for producing an interior of a headlight lined with a decorative screen to be backlit by a laser machining device, wherein the method comprises the steps of:
removing material from the decorative screen by laser machining, wherein the decorative screen includes a substrate element made from a transparent plastic with a surface, and a lacquer coating applied to the surface prior to the laser machining, wherein the laser machining is carried out by the laser machining device which comprises a laser unit and a control unit that controls the laser unit;
arranging the decorative screen in a machining position in a work region of the laser unit,
generating values for operating parameters for operating the laser unit,
generating and emitting a laser beam by the laser unit according to the generated values for the operating parameters,
applying the emitted laser beam to the transparent plastic substrate of the decorative screen arranged in the machining position at a machining point in a region of the surface of the decorative screen provided with the lacquer coating, so that material of the lacquer coating is removed locally at the machining point,
providing electromagnetic actuators for moving the laser unit, the laser beam and thus also the machining point according to the generated values for the operating parameters by the laser unit relative to the decorative screen along a work path in the region of the surface of the decorative screen provided with the lacquer coating, so that material of the lacquer coating is removed along the work path,
wherein the machining point is moved along a plurality of adjacent work paths, wherein adjacent work paths are so close to one another that a machining point of the laser beam on one work path adjoins or partially overlaps a machining point of the laser beam on an adjacent work path in order to remove material of the lacquer coating over a large region, and that the laser unit is moved according to the generated values for the operating parameters in order to change a position of the machining point and to follow a three-dimensional course of the surface provided with the lacquer coating when said laser unit moves along the work paths,
wherein the values for the operating parameters for operating the laser unit are generated and the laser unit is moved in accordance with the generated values for the operating parameters such that an angle of the laser beam in the machining point relative to the surface of the decorative screen provided with the lacquer coating remains constant while the laser unit moves along the work paths.
|