Optimization and Application of Rough Machining Process for Titanium Alloy Three-dimensional Flow Impeller Milling
The milling rough machining of titanium alloy three-dimensional flow impeller was taken as the research ob-ject,and the processing technology analysis was carried out according to the material characteristics of titanium alloy and the structural characteristics of three-dimensional flow impeller.It was concluded that the traditional linear layer-by-layer cutter milling method was not suitable for the rough machining of large diameter impeller,and a milling strategy using U-shaped cutter was proposed,so it was determined that the parameter range with the highest material removal rate and the smallest tool loss.The technical effectiveness of the U-shaped milling optimization theory was verified by the comparison test of im-peller milling rough machining under different cutting modes.Compared with the traditional linear milling method,using U-shaped tool to mill the 700 mm diameter titanium alloy three-dimensional flow impeller could improve the machining effi-ciency by 31.3%and could reduce the tool consumption by 43.75%.