CNC Machining
5-Axis Machined Impeller
A twisted-blade impeller machined in aluminium on a simultaneous five-axis centre, with blade surfaces machined in continuous passes.
- Category
- CNC Machining
- Material
- Aluminium 6061-T6
- Finish
- As machined, bead blasted on request
- Process
- 5-axis simultaneous milling
- Tolerance
- ±0.02 mm on blade profiles
- Quantity
- 1 – 50 pieces
- Industry
- Aerospace & UAV
- Blades
- Sculpted, continuous surface
- Machining strategy
- Continuous five-axis toolpaths, collision-checked in CAM
- Verification
- CMM comparison against the supplied model
Every part is produced to a customer drawing with inspection and, where required, dimensional reporting.
Impellers are the classic five-axis part: the blades twist, the passages are deep, and the surface has to flow without witness marks between passes.
How it is made
The toolpath is planned in CAM so the cutter stays short and is presented to each blade at a consistent angle. That keeps deflection low — the main cause of thin-blade inaccuracy — and produces a surface that does not need hand blending to look right.
Verification
Blade profiles are measured against the supplied model, and the root radius is checked separately because it carries the load and is the easiest feature to lose to tool deflection.
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