Circular milling
Page 80 CM6200 Operating Manual
4.3.5 Performing circular milling
Machining in either direction is possible with a facing mill on general flanges. It is
recommended to make one pass in one direction and the next pass in the opposite
direction.
If conditions or tooling requires that all passes be made in a single
direction, then withdraw the spindle at the end of each one or two
passes and reverse the table to prevent excessive twisting and kinking
of hoses and electric cables.
Do the following to perform circular milling:
1. Set the spindle over the workpiece to the desired starting point.
2. Set the speed of the rotary table to zero.
3. Start the turntable and set a desired speed for milling.
4. Stop the table.
5. Advance the spindle toward the work until the cutter just contacts the sur-
face. Reset the DRO.
6. Feed the spindle away from the piece so that it is no longer over the surface
that will be machined.
7. Adjust the spindle to set the desired depth of cut.
8. Turn on the power and start spindle rotation.
9. Radially feed the cutter into the workpiece using the radial axis feed.
10. When the cutter is fully engaged in the work, start the rotary table rotation.
Never stop the spindle until the rotary table is completely stopped.
Stopping the spindle before the rotary table stops will damage the
machine.
Setup fingers may need to be removed when milling.
Removing the setup fingers from the machine will reduce stability of the
machine. Make sure that the machine is secured onto the workpiece
according the specifications listed in Section 3.4 on page 25 before
removing setup fingers.
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