Feed Rate; Spindle Speed; Constant Spindle Speed; Constant Cutting Speed - HEIDENHAIN MANUALPLUS 4110 Manual

Feed rate and spindle speed

Feed rate

You select from the following methods:
Feed rate per revolution in mm/rev
The feed rate depends on the spindle speed. The tool is moved at the programmed value for
each spindle revolution.
Feed per minute in mm/min.
The feed rate is independent of the spindle speed. The tool constantly moves at the
programmed value.

Spindle speed

You select from the following methods:

Constant spindle speed

You program the spindle speed directly. The spindle speed is independent of the diameter the
tool is working on.

Constant cutting speed

You program the spindle speed indirectly. The MANUALplus 4110 changes the spindle speed
depending on the diameter momentarily being worked on by the tool. This results in a constant
cutting speed.
Example:
Constant spindle speed:
Sections 1 to 3: identical spindle
speeds
Constant cutting speed:
Section 1: High spindle speed
Section 2: Constantly decreasing
spindle speed
Section 3: Low spindle speed
Maximum speed (speed limitation):
If the constant spindle speed that you program is greater than the specified maximum
spindle speed, the maximum speed is valid.
For constant cutting speed the speed is limited by the defined maximum spindle
speed.
HEIDENHAIN MANUALplus 4110 Basic Knowledge 1.5