Abstract
This paper describes a two-degrees-of-freedom (two-DOF) controlled electromagnetic actuator guided by an elastic hinge mechanism to realize off-axis laser beam cutting. In the laser beam cutting process, a focused laser beam melts and vaporizes part of the workpiece, and the molten material is blown away by an assist gas jet. The cutting speed and quality is related to the flow of the assist gas jet. In order to improve the removal capability of the molten material and to reduce gas consumption in off-axis laser beam cutting, the lens is driven radially by the proposed two-DOF actuator to generate relative motion between the assist gas nozzle and the laser.
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