27 milling cy cles – HEIDENHAIN CNC Pilot 4290 V7.1 User Manual
Page 275
HEIDENHAIN CNC PILOT 4290
275
4.27 Milling Cy
cles
Cycle run
1
Starting position (X, 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 area is milled.
7
Returns to retraction plane J.
Pocket milling, roughing G845
Cutting
direction
Machining
direction
Direction
of tool
rotation
Execution
Cutting
direction
Machining
direction
Direction
of tool
rotation
Execution
Up-cut milling
(H=0)
From inside
(Q=0)
Mx03
Climb milling
(H=1)
From inside
(Q=0)
Mx03
Up-cut milling
(H=0)
From inside
(Q=0)
Mx04
Climb milling
(H=1)
From inside
(Q=0)
Mx04
Up-cut milling
(H=0)
From outside
(Q=1)
Mx03
Climb milling
(H=1)
From outside
(Q=1)
Mx03
Up-cut milling
(H=0)
From outside
(Q=1)
Mx04
Climb milling
(H=1)
From outside
(Q=1)
Mx04