As an important raw material for tungsten production, the physical and chemical properties of spherical tungsten powder (W) directly affect the quality and use of tungsten products. Normally, the higher the purity of the powder and the lower the oxygen and carbon content, the better the thermodynamic properties of the tungsten machining material. However, the physical and chemical properties of the powder are not the only factor that determines the quality of tungsten products. The performance of tungsten parts is also restricted by the production process. Compared to traditional powder metallurgy methods, 3D printing technology is more suitable for manufacturing tungsten parts for the following reasons:

Powder metallurgy is a process technology that uses metal powder as a raw material, after forming and sintering, to manufacture products of various shapes. The advantages are: 1) Special materials can be processed; 2) High material utilization rate; 3) Mass production is possible; 4) High accuracy of material distribution. The disadvantages are: 1) The product has poor strength and toughness; 2) It cannot be made into large-scale products; 3) Only some parts with simple structures can be prepared; 4) The cost of compression molding is high.