Supplementary conditions for vortex milling
● Roughing
1/2 slot width W – finishing allowance UXY ≤ milling cutter diameter
● Slot width
minimum 1.15 x milling cutter diameter + finishing allowance
maximum, 2 x milling cutter diameter + 2 x finishing allowance
● Radial infeed
minimum, 0.02 x milling cutter diameter
maximum, 0.25 x milling cutter diameter
● Maximum infeed depth ≤ cutting height of milling cutter
Please note that the cutting height of the milling cutter cannot be checked.
The maximum radial infeed depends on the milling cutter.
For hard materials, use a lower infeed.
Machining type, roughing plunge cutting
Roughing of the slot takes place sequentially along the length of the groove, with the milling
cutter performing vertical insertions at the machining feedrate. The milling cutter is then
retracted and repositioned at the next insertion point.
The milling cutter moves along the length of the slot, at half the infeed rate, and inserts
alternately at the left-hand and right-hand walls.
The first insertion motion takes place at the slot edge, with the milling cutter inserted at half
the infeed, less the safety clearance (if the safety clearance is greater than the infeed, this will
be on the outside). For this cycle, the maximum width of the slot must be less than double the
width of the milling cutter + the finishing allowance.
Following each insertion, the milling cutter is lifted by the height of the safety clearance at the
machining feedrate. As far as possible, this occurs during what is known as the retraction
process, i.e. if the milling cutter's wrap angle is less than 180°, it is lifted at an angle below 45°
in the opposite direction to the bisector of the wrap area.
The milling cutter then traverses over the material in rapid traverse.
Programming technological functions (cycles)
10.2 Milling
Milling
Operating Manual, 08/2018, 6FC5398-7CP41-0BA0 463
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