Siemens SINUMERIK 802D sl Programming And Operating Manual page 152

Cycles
4.7 Shoulder plunge-cutting – CYCLE412
plunge-cutting up to finishing allowance. After finishing and expiry of the sparking-out time,
the reciprocation motion stops, and the wheel retracts to the starting position.
Explanation of the parameters
N_SITZ (seat number)
The N_SITZ parameter is used to enter the number of the seat to be machined on the work-
piece.
Z_SCH (shoulder dimension in Z)
The Z_SCH parameter is used to specify the width of the shoulder.
X_ST (starting position in X)
X_ST is used to define the starting position of the grinding motion in the X direction.
B_ART (machining type)
The B_ART parameter is used to define the machining type used to machine a technological
section. Possible values for B_ART lie in the range between 1 and 3 with the following mean-
ing:
1 = roughing
2 = finishing
3 = roughing, finishing
A_LU (air allowance)
The term 'air allowance' is used to denote the distance between the starting position in Z and
the stock allowance for roughing.
A_SR, A_SL, A_FSL (allowance)
For the various machining steps, different values can be defined for the allowance. These re-
fer to the nominal diameter.
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Programming and Operating manual, 06/2006, 6FC5398-4CP10-0BA0
Grinding