420 DIN Programming for the Y Axis
5.7 Milling Cycles for the Y Axis
For the cutting direction, machining direction and direction of tool
rotation, please refer to table G845 in the User's Manual.
For the machining direction Q=1 (from the outside toward
the inside), please note:
The contour must start with a linear element.
If the starting element is < WB, WB is reduced to the
length of the starting element.
The length of the starting element must not be less than
1.5 times the diameter of the milling cutter.
Cycle run
1 Starting position (X, Y, Z, C) is the position before the cycle
begins.
2 Calculates the number of cuts (infeeds to the milling planes,
infeeds in the milling depths) and the plunging positions and
paths for reciprocating or helical plunges.
3 Approaches to safety clearance and, depending on O, feeds to
the first milling depth or approaches helically or on a
reciprocating path, .
4 Mills a plane.
5 Retracts by the safety clearance, returns and cuts to the next
milling depth.
6 Repeat steps 4 and 5 until the complete surface is milled.
7 Returns to retraction plane RB.
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