A method of predicting the cutting speed for machining of titanium alloy
comprising the steps of obtaining a first transfer function for a tool
system, obtaining a second transfer function for a workpiece system,
selecting from the first transfer function a first flexible mode,
selecting from the second transfer function a second flexible mode,
defining a natural frequency of the first flexible mode and the second
flexible mode, calculating a tooth passing frequency using the defined
natural frequency, accepting the calculated tooth passing frequency if the
calculated tooth passing frequency differs from a second harmonic of a
combined system formed of the tool system and the workpiece system and
from at least one natural frequency corresponding to the tool system and
the workpiece system, calculating a stable spindle speed, defining a cut
depth using the calculated spindle speed.
