One of the main applications of metal 3d printers is manufacturing parts of the energy sector. Parts of gas or vapor turbines and compressors are of great importance in this area. To improve the efficiency of turbines, manufacturing complex geometries are needed. Also, for some parts, special alloys should be used as materials. It is very difficult to manufacture some complex parts with special materials using conventional manufacturing methods. In these cases, metal 3d printing can be an appropriate substitute for conventional methods.