Atmosphere control system of additive manufacturing laser forming equipment

The utility model relates to an atmosphere control system of additive manufacturing laser forming equipment, which belongs to the technical field of additive manufacturing and comprises an inert gas replacement unit, a laser forming unit, an atmosphere control unit and a laser forming unit. The pressure stabilizing unit is used for adjusting the pressure in the forming cavity in the forming process; and the differential pressure adjusting unit is used for adjusting the air blowing quantity in the forming process. The system is used for atmosphere control; the method comprises an early-stage system debugging process and a later-stage automatic control process. The technical problems of inert gas waste, complex control program, inconsistent gas parameters and poor interchangeability in atmosphere control of additive manufacturing laser forming equipment in the prior art are solved, the gas waste is reduced, the stability is improved, debugging parameters such as pressure, flow and differential pressure are unif