Preparation of TC4 titanium alloy by electron beam selective melting

∗Electron beam selective melting (EBSM) is a rapidly developing 3D metal printing technology in recent years. With the advantages of no pollution and high energy density electron beam heat source in vacuum processing, especially in the field of complex shape and high precision parts manufacturing, its EBSM is gradually popularized in the fields of aerospace, medical devices, medical implants and so on. Different processing parameters will affect the temperature field of additive manufacturing process. However, under the current experimental conditions, it is difficult to accurately grasp the change of instantaneous temperature field in additive manufacturing process by experimental means.