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SIM. 5-AXIS MACHINING
The sim_5_axis_1_IV.prz example illustrates the use of the InventorCAM
Sim. 5 axis module for turbine blade machining.
The following Sim. 5 axis operations are used to perform the semi-finish and
finish machining of the turbine blade:
• Blade Semi-finishing
(5X_selected_faces; 5X_selected_faces)
The first operation provides the semi-finish of the turbine blade,
using a bull nosed tool of Ø16 with a corner radius of 4 mm. A
combination of the Parallel Cuts strategy and Spiral Cutting
method is used to perform the spiral machining of the blade.
The tool tilting is defined using the Tilted relative to cutting
direction option, with lag angle of 20°. The tool contact point
is defined at the front tool face. This combination of parameters
enables you to perform the machining by the toroidal surface of
the tool.
Gouge checking is performed to avoid the possible collisions of
the tool with the planar surface of the blade base. The remaining
material will be machined at a later stage, using a special tilting
strategy.
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