Example: Milling A Manta Ray - Siemens SINUMERIK 828D Manual

Complex free-form surfaces
6.2
This example involves milling a manta ray from a free-form surface model. Modeled is performed
in a CAD/CAM system.
Manta ray in the CAM
system
Plane roughing
with 3 axes
5-axis residual material
machining
© Siemens AG All rights reserved SINUMERIK, Manual, Mold-Making with 3- to 5-Axis Simultaneous Milling

Example: Milling a manta ray

The manta ray is modeled as a free-form sur-
face in the CAM system using a digitized scat-
terplot. The machining strategies included 3D
plane roughing and several 3-axis and 5-axis
semi-finishing and finishing operations.
The face was machined, for example, using a
line-by-line finishing operation with axes per-
manently set at an angle. This technique
enabled optimum surface quality to be
achieved given the extreme level of curvature
involved.
Strategies for 5-axis residual material machin-
ing were used to finish the residual material,
e.g. undercutting without taking off the tool.
6.2
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