Programming technological functions (cycles)
8.2 Milling
Milling
Operating Manual, 03/2010, 6FC5398-7CP20-1BA0
295
8.2.3 Circular pocket (POCKET4)
Function
You can mill any circular pocket with the "Circular pocket" cycle.
The following machining methods are available:
● Mill circular pocket from solid material.
● Pre-drill circular pocket in the center first if, for example, the milling cutter does not cut in
the center (program the drilling, circular pocket and position program blocks in
succession).
● Machine pre-machined circular pocket (see "Solid machining" parameter).
– Complete machining
– Remachining
The following machining types are available for milling using the "Circular pocket" function:
● Plane-by-plane
● Helical
Approach/retraction for plane-by-plane solid machining
In plane-by-plane machining of the circular pocket, the material is removed horizontally, one
layer at a time.
1. The tool approaches the center point of the pocket at rapid traverse at the height of the
retraction plane and adjusts to the safety clearance.
2. The tool is inserted into the material according to the chosen strategy.
3. The circular pocket is always machined from inside out using the selected machining
method.
4. The tool moves back to the safety clearance at rapid traverse.
Approach/retraction for helical solid machining
In helical reaming, the material is removed down to pocket depth in a helical movement.
1. The tool approaches the center point of the pocket at rapid traverse at the height of the
retraction plane and adjusts to the safety clearance.
2. Infeed to the first machining diameter.
3. The circular pocket is machined with the chosen machining type up to pocket depth or up
to pocket depth with finishing allowance.
4. The tool moves back to the safety clearance at rapid traverse.
5. Lateral infeed to the next machining diameter.
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