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This research was supported by the National Natural Science Foundation of China [No.
52375346], and the Science and Technology Innovation 2025 Major Project of Ningbo (No.
2022Z064).
The turbine shaft is a crucial core component of aeroengines, made of difficult-to-deform high-temperature alloy materials, characterized as a long hollow stepped shaft with deep internal holes. Achieving efficient, high-performance, and precise manufacturing of turbine shafts is a cutting-edge issue urgently needing resolution in the field of aeroengine manufacturing. Currently, the forming process for turbine shafts mainly involves forging the external shape, followed by machining the outer profile and drilling the internal holes, which presents problems such as low efficiency and high material consumption. This paper analyzes the principles and characteristics of advanced forming processes for shaft components, including cross-wedge rolling (CWR), three-roll skew rolling (TRSR), and piercing and cross rolling integration (PCRWI). This paper expounds the principles and characteristics of these process forming turbine shafts, concluding that an integrated short-process flexible forming method is the future development direction for precise plastic forming of aeroengine turbine shafts. The research results have significant theoretical value and practical engineering implications for enhancing the overall manufacturing capability of aeroengines.
