FIELD: laser cutting of materials, including metals.
SUBSTANCE: invention relates to a method and a machine for laser processing of metal material and a machine-readable information carrier. The laser beam from the laser beam radiation source is fed along the optical path of the beam transfer to the working head located near the material. The laser beam is collimated along the optical axis of propagation, the collimated laser beam is focused in the area of the working plane of the material, and the focused laser beam is run along the working trajectory on the metal material. The reflection of the collimated beam is carried out using a deformable controlled reflecting element of the surface, which has multiple independently moving reflection regions. The location of the reflection regions is controlled to establish a predetermined transverse distribution of the beam power on at least one working plane of the metal material. The auxiliary gas flow is supplied in the direction of the area of the working plane of the metal material, the auxiliary gas flow axis is displaced relative to the predetermined working path and the current position and/or direction of the current movement of the auxiliary gas flow axis is determined. At the same time, the location of the mentioned reflection regions is controlled to form the said predetermined transverse distribution of the beam power in the area of the working plane of the said flow and the automatic adjustment of the propagation position of the optical axis of the laser beam depending on the detected current position and/or the detected current direction of translational movement of the auxiliary flow axis gas.
EFFECT: violation of the rotational symmetry of the laser beam and the shielding gas flow is prevented, i.e. deviation from the state of coincidence between the axes of laser radiation propagation and the exit axis of the shielding gas flow, which leads to an increase in the processing speed and the quality of laser beam processing.
12 cl, 9 dwg
