Simulation of GH4169 turning process based on the coupled SPG/FEM algorithm

In the machining process of GH4169 nickel-based superalloys, significant work hardening and machinability issues arise due to excessive cutting forces. To rapidly analyze the dynamic response of the cutting process and reduce experimental costs, an SPG/FEM coupled cutting model was established to investigate the chip formation process in GH4169 turning, as well as the impacts of cutting speed, depth of cut, and tool nose radius on cutting forces. The results indicate that the FEM/SPG coupling method is effective for analyzing the dynamic response of sawing systems and provides theoretical support for understanding the dynamic damage and chip formation mechanisms of GH4169; the chip formation process of nickel-based alloys primarily consists of four stages; the cutting force is most sensitive to changes in cutting depth, with cutting speed and tool nose radius having minimal impact.