HEIDENHAIN SW 54843x-02 - Manual (Page 326)

326 Cycle programming
4.8 Milling cy
cles
Helical-slot milling, radial
Select milling
Select helical-slot milling, radial
The cycle mills a helical slot from the contour starting point to the
thread end point.
The starting angle defines the starting position
for the slot. The slot width equals the diameter of the milling cutter.
Cycle parameters
X, Z
Starting point
C Spindle angle (C-axis position)
X1 Thread diameter
C1 Starting angle
Z1 Starting point of thread
Z2 End point of thread
F1 Thread pitch
 F1 positive: Right-hand thread
 F1 negative: Left-hand thread
U Thread depth
I Maximum infeed. The infeed movements are reduced
down to >= 0.5 mm according to the following calculation.
Following that, each infeed movement will amount to 0.5
mm.
 Infeed 1: "I"
 Infeed n: I * (1 – (n–1) * E)
E Cutting depth reduction
P Run-in length (ramp at the beginning of the slot)
K Run-out length (ramp at the end of the slot)
G14 Tool change point (see page 128)
T Turret pocket number
ID Tool ID number
S Spindle speed/cutting speed
F Feed per revolution
D No. of gears (threads per unit)
SCK Safety clearance in infeed direction (see page 128)
MT M after T: M function that is executed after the tool call T
MFS M at beginning: M function that is executed at the
beginning of the machining step