Siemens SINUMERIK 802D sl Programming And Operating Manual page 146

Cycles
4.6 Multiple plunge-cutting – CYCLE411
N10 T1 D1 M7
N20 S1=2000 M1=3
N30 S2=1100 M2=4
N40 CYCLE411(1, 200, 30, 255, 15, 3, 5,
0.5, 0.3, 0.2, 0.1, 0.005, 1, 0, 0, 100,
50, 40, 30, 3, 1, 1, 600)
N50 M30
Sequence of operations
The machining start position is first approached in X, then in Z, corresponding to the initial
position of the wheel in X, if the current X value is less than the X allowance.
The X starting position is calculated as the setpoint diameter + stock allowance + air allow-
ance. Thereafter, optional surface sparking is done using a direct-contact vibration pick-up,
roughing through plunge-cutting to finishing allowance, retraction to the X starting position
and offsetting of the wheel in the Z direction with overlapping.
Once the roughing plunge-cutting is completed over the whole workpiece width, the starting
position for reciprocation in Z is approached at the position of the finishing allowance in X.
Finishing and fine-finishing are carried out by the infeed amount at the selectable infeed
points using the subsequent reciprocation grinding technology.
The infeed is performed at the reversal points of the reciprocating motion, either on the right,
on the left or at both points. The motion behavior at these reversal points can be pro-
grammed.
After a sparking-out time, the subsequent retraction to the starting position is performed at
the end position for machining.
4-16
; Determine technology values, coolant ON
; Turn on wheel speed
; Turn on workpiece speed
; Cycle call
;End of program
Programming and Operating manual, 06/2006, 6FC5398-4CP10-0BA0
Grinding