High-tech content techniques of the blisk and impeller machining include: high precision CNC turning, efficient processing of blisk channel, five-axis milling of complex surface, etc. It requires suitable slot cutter, which can keep clearance of the work piece structure. For blade profile finishing, standard taper ball end mills could be adopted.
Impeller channel roughing
Use tapered wavy flute endmill for milling operation,in order to reduce the cutting force, improve the performance of chip breaking,and achieve vibration reduction. Larger end teeth clearance angle and the tooth width are applied, with shallow groove deep flat wavy shape, high resistance to breakage of peripheral edge, excellent chip removal performance and rigidity.
Cylindrical wavy flute milling cutter for milling machining, with high cutting efficiency
Blade profile milling
Two series, uneven pitch endmills and front wavy edge endmills,be applied in the cavity milling, lateral milling slot milling, contour milling of titanium alloy parts, often applied in semi-finishing and finishing after roughing.
End milling along the streamline direction of the blade by adopt ball-nose endmill, gradually producing curved surface.
Small chamfering area at blade root, large overhang and poor rigidity, taper ball endmill is the choice for increase tool strength.
