The aim of this study is to design the technological process of making a gear shaft according to the draft "TF-94" in the amount of 3000 pieces per year. The design begins with the technological analysis of the part from the construction and technological side. The required mechanical equipment, associated operations and tools for performing them are defined. Within the technoeconomic analysis, it was concluded that the optimal form of input material is forged steel. The next step is to structure the technological process of making the gear shaft and to determine the operations required to produce the workpiece. Structuring includes turning operations (rough and fine), milling and gear hobbing. By reading the operating mode from the machanical equipment catalogue, the calculation time determines the time of all operations, which results in the total production time of the workpiece. The elaborated operations, mechanical equipment and tools are presented in the basic technological documentation. Modeling of the processing simulation was performed using CAD / CAM technology or Cam software Mastercam. The obtained results were compared with the calculations and their deviations and matches were determined.