Electron beam selective melting additive manufacturing method and device for refractory alloy

The invention relates to the technical field of advanced manufacturing, in particular to an electron beam selective melting additive manufacturing method and device for refractory alloy. The method comprises the following steps: collecting initial temperature of a powder bed, initial parameters of an electron beam, material attributes of parts, initial temperature when the parts are completed, a molten pool temperature field image and an image of the powder bed; inputting the initial temperature of the powder bed and the initial parameters of the electron beam to a pre-constructed powder bed preheating model to output temperature required by preheating; inputting the molten pool temperature field image and the powder bed image to a pre-constructed electron beam parameter optimization model to output electron beam parameters; inputting the electron beam parameters, the molten pool temperature field image and the powder bed image to a pre-constructed scanning path optimization model to output a scanning path po