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2.5D MILLING
The 2_5D_Milling_1_IV.prz example illustrates the use of InventorCAM
2.5D Milling to machine the cover part shown above. The machining is
performed on a 3-axis CNC machine in two setups, one for the top faces and
one for bottom faces.
The following InventorCAM operations are created to perform the machining:
• Top face machining (FM_facemill_2)
This Face Milling operation performs the machining of the top
face of the cover. An end mill of Ø20 is used. The machining
is performed in two passes - rough and finish. A machining
allowance of 0.2 mm remains unmachined at the floor, after the
rough pass, and is removed during the finishing pass.
• External faces machining (F_profile_1; F_profile_2)
These operations perform the profile machining of the external
contour of the cover. An end mill of Ø16 is used. The Clear
offset option is used at the roughing stage to perform the
machining in a number of equidistant offsets from the machining
geometry. The machining allowance is left unmachined during
the roughing operation and removed at the finishing stage.
• Bolt seats machining (F_profile_3)
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This operation is used to remove the material at the bolt seat
areas. An end mill of Ø8 is used for the operation.
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