Laser cutting machine uses fiber laser, which adopts rare earth glass fiber as the gain medium.When the
pump light passes through the optical fiber, The rare earth ions in optical fiber absorb pump light, Its
electrons are stimulated to higher excitation energy levels , The inversion of ion number is realized,The
inverted ions are radiated from the high energy level to the ground state, Output high energy laser beam
， The optical reflection focuses on the workpiece surface, The workpiece surface melts rapidly under
the laser heat, Under the action of the auxiliary gas,Blow the slag off the work piece quickly,And the
cutting software is controlled by the graphic to realize high-speed metal cutting.