Special Functions For Engine And Turbine Components - Siemens SINUMERIK 828D Manual

5.1
Impeller
140
Engine and turbine components
5.1 Special functions for engine and turbine
components
Turbine impellers or blades are subject to the toughest of requirements in terms of surface
quality and contour accuracy. As a result, the NC is expected to process large data volumes
within a very short period. Even the smallest jumps in deceleration and acceleration can result in
surface defects (e.g. chatter marks).
Turbine blades are often made from high-strength nickel alloys or titanium, which means that
suitable methods have to be employed. This makes SINUMERIK the perfect solution, as it is a
complete package offering a highly dynamic drive combined with a control.
Key functions for machining parts for engine and turbine technology:
High Speed Settings CYCLE832,
because optimum data compression within the tolerance band combined with feedforward
control and jerk limitation ensure the required surface quality and contour accuracy.
Spline interpolation for hobbing (face/circumferential milling) impeller blades.
TRAORI,
for 5-axis transformation that is independent of the kinematics.
Integrated process chain from generation in CAD through to execution on the CNC.
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