TECHNICAL DESIGN OF THE MACHINING PROCESS OF PARTS ON CNC MACHINES USING 3D SOFTWARE (UZAUTO MOTORS POWERTRAIN)
Abstract
This study investigates the technical design of machining processes for powertrain components on CNC machines using advanced 3D CAD/CAM technologies. The research focuses on optimizing toolpath strategies, improving cutting efficiency, and reducing machining errors through digital simulation. The findings highlight the significance of virtual manufacturing in enhancing precision, minimizing production waste, and increasing competitiveness in automotive manufacturing, particularly at UzAuto Motors Powertrain. Modern advanced manufacturing technology greatly relies on CAD/CAM software. Many CAD/CAM software tools have been rapidly developed in recent years, with Unigraphics (UG) standing out for its powerful design, CNC programming functions, and seamless CAD/CAM integration.
As an application example, a complex-surfaced mouse model part was designed and trial-manufactured using a CNC machine. First, the 3D model was created in UG’s modeling module. Then, a process scheme was developed after careful analysis. In the manufacturing module, NC machining parameters were set according to the processing requirements; toolpaths were generated, edited, and verified, and NC codes were produced via post-processing. Simulation in YULONG software preceded the actual machining on a 3-axis CNC milling machine, resulting in a part with high accuracy and desired shape.
The results show that UG’s CAD/CAM capabilities streamline NC machining of complex surface parts, improving design and machining efficiency, shortening production cycles, and reducing costs. The methodology described provides a valuable reference for similar parts processing and related studies.
References
1. Zhang, S., & Bai, J. (2024). Research on CNC programming and machining process based on CAD/CAM technology. Applied Mathematics and Nonlinear Sciences, 9(1). https://doi.org/10.2478/amns-2024-0516
2. Pajaziti, A., Tafilaj, O., Gjelaj, A., & Berisha, B. (2025). Optimization of toolpath planning and CNC machine performance in time-efficient machining. Machines, 13(1), 65. https://doi.org/10.3390/machines13010065
3. Gao, S. (2024). Simulation of mechanical NC machining based on CAD/CAM. Computer-Aided Design & Applications, 21(S6), 1–9. https://doi.org/10.14733/cadaps.2024.S6.1-9
4. Siddiquee, A. N., Khan, Z. A., & Mallick, Z. (2022). Recent research development of CNC-based milling machining conditions: A comprehensive review. Materials Today: Proceedings, 62, 3983–3989.
5. Guo, C., Li, J., & Xu, W. (2021). Intelligent optimization of CNC machining parameters using integrated CAD/CAM–AI technologies. Journal of Manufacturing Processes, 68, 520–532.
6. UzAuto Motors Powertrain. (2022). CNC machining and powertrain manufacturing guidelines.
7. Groover, M. P. (2020). Fundamentals of Modern Manufacturing. Wiley.
8. Kalpakjian, S., & Schmid, S. (2021). Manufacturing Engineering and Technology. Pearson.


