Sandvik Coromant Heat resistant super alloys - Manual (Page 90)

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Processes using HSM techniques
Trochoidal milling
A roughing/high material removal method
used when in a confined space or slot.
A continuous spiraling path feeding in the
radial direction to form a groove or a pro-
file.
It requires specialised programming and
machine capabilities.
Slicing
A semi-roughing technique used to produce
a profile. Multiple passes to reduce the
radial immersion. It requires a machine with
high spindle speed and dynamic capability.
Profiling
A finishing technique used to produce a
finished profile e.g. flank milling which
reduces the number of axial passes.
Requires a machine with high spindle
speed and specialised programming tech-
niques for simultaneous 5 axis for blisk/
impellor machining.
Components/features where HSM can be applied
Some of the typical components that can be machined using CoroMill Plura tools and HSM
techniques for example are blisks, impellers, turbines (LPT and HPT) and exhaust casings.
Slots – shafts Blisk/impeller Scallops – casings