HEIDENHAIN MANUALplus 4110 - Manual (Page 223)

HEIDENHAIN MANUALplus 4110 223
4.8 Milling Cy
cles
Helical-slot milling, radial
Call the milling menu.
Select the "Helical-slot milling, radial" cycle.
The cycle mills a helical slot from Z1 to Z2. Starting angle C1 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)—default: Current spindle angle
 C1 starting angle
 X1 diameter of thread
 Z1 starting point of thread
 F1 thread pitch
„ F1 positive: Right-hand thread
„ F1 negative: Left-hand thread
 Z2 end point of thread
 P run-in length: Ramp at the beginning of the slot
 K run-out length: Ramp at the end of the slot
 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
 T tool number
 S spindle speed / cutting speed
 F feed per revolution
Cycle run
1 Activate the C axis and position to spindle angle C at rapid traverse
(only in Teach-in mode).
2 Calculate current infeed.
3 Position the tool for the first pass.
4 Machine up to end point Z2 at the programmed feed rate, taking
the ramps at the beginning and end of the slot into account.
5 Return on paraxial path and approach for next pass.
6 Repeat 4 to 5 until the slot depth is reached.