LASER CUTTING HEAD WITH DUAL MOVABLE MIRRORS PROVIDING BEAM ALIGNMENT AND/OR WOBBLING MOVEMENT

A laser cutting head with movable mirrors may be used to move a beam, for example, to provide beam alignment and/or to provide different wobble patterns for cutting with different kerf widths. The laser cutting head includes a cutting nozzle for directing the laser beam together with a gas to a workpiece for cutting. The movable mirrors provide a wobbling movement of the beam within a relatively small field of view, for example, within an aperture of the cutting nozzle. The movable mirrors may be galvanometer mirrors that are controllable by a control system including a galvo controller. The control system may also be used to control the fiber laser, for example, in response to the position of the beams relative to the workpiece and/or a sensed condition in the cutting head such as a thermal condition proximate one of the mirrors. 具有可移动反射镜的激光切割头可用于移动光束，例如，以便提供光束对准和/或提供不同摇摆图案以用不同切口宽度切割。激光切割头包括用于将激光束与气体起引导至工件以便进行切割的切割喷嘴。可移动反射镜提供光束在相对小视场内的摇摆运动，例如，在切割喷嘴的孔内。可移动反射镜可为检流计镜，其能够通过包括检流计控制器的控制系统控制。控制系统还可用于控制光纤激光器，例如，响应于光