Research on Impeller Forming Process Based on Additive and Subtraction Manufacturing Technology and UG Tool Path Simulation Design

In order to study the application of additive and subtraction composite manufacturing technology in the machining of industrial parts such as impellers, UG/NX software was used to model and define each machining feature, and the tool track paths of additive and three kinds of subtraction were compiled, and the cutting parameters were optimized. A five-axis laser deposition additive/high speed reduction composite manufacturing equipment was used for experimental verification. The results show that the surface quality, processing efficiency and overall performance of the parts are significantly improved by combining the advantages of additive manufacturing and subtractive manufacturing. The surface of the blade without face milling is rough, the surface finish of the blade after face milling and cavity milling is significantly improved, and the surface quality of the inner cavity is also significantly improved. Additive and subtraction composite processing not only improves the surface quality of parts, but also effectively improves the processing efficiency and material utilization rate, and reduces the production cost.It proves the great potential of additive and subtractive composite processing technology in complex parts manufacturing, provides a reliable technical way for the production of high quality industrial parts, and provides a certain reference value for additive and subtractive composite manufacturing technology.