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| CNC Programming and Machining Technology for 5-Axis Milling of Turbine Blisk |
| ZHAO Wenming, SHEN Qi, WANG Bing, LIU Zhanqiang |
(Key Laboratory of High Efficiency and Clean Mechanical Manufacture of Ministry of Education, School of Mechanical
Engineering, Shandong University, Ji’nan 250061, China） |
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Abstract Turbine blisk has been widely applied in aero-engine due to its many advantages such as good structural
integrity, light weight, less assembling link and high assembling precision. Based on the machining characteristics of the
turbine blisk, it is simplified as a benchmark workpiece which can be investigated from two aspects of CNC programming
and cutting operation. Firstly, CNC programming of the benchmark workpiece was conducted with HyperMILL software.
The ideal tool path were obtained, which can be ensured high efficient and high quality machining of the workpiece. Then,
the benchmark workpiece material used TC4 titanium alloy which was milled with DMU-70V five-axis machining center.
During the finishing of the blades and the hub surfaces, the cutting forces were on-line measured for different end millingtools.
Finally, the surface morphology of the blades and hub machined surfaces were observed. The machining performance
of the different milling tools for the benchmark workpiece of TC4 titanium alloy is evaluated with the measured cutting
forces and surface morphology.
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2017, 
