Tool design and cutting parameters optimisation for plunge milling blisk

Because of its complex structure, narrow channel, large metal removal rate and its material belonging to difficult-to-machine material, the machining of blisk is very difficult. It is one of the effective methods to solve the above problems by applying the plunge milling technology, and the tool design and cutting parameters optimisation are of great significance. Firstly, the finite element method is used to design and analyse the geometrical structure, and the static and modal analysis is carried out to ensure the strength of the tool and the stability of the plunge milling. Secondly, the experimental research on the milling titanium alloy was finished by using the designed tool, and the influence of cutting parameters on the cutting force was analysed. Finally, based on the fuzzy comprehensive evaluation method, the cutting parameters are optimised, and the rationality of the tool designed is verified through the experimental study of tool wear. [Submitted 3 January 2018; Accepted 28 December 2018]