Thread milling, axial, 7 dr illing cy cles – HEIDENHAIN MANUALplus 4110 User Manual
Page 197

HEIDENHAIN MANUALplus 4110
197
4.7 Dr
illing Cy
cles
Thread milling, axial
Call the drilling menu.
Select the "Thread milling, axial" cycle.
The cycle mills a thread in existing holes.
Cycle parameters
X, Z starting point
C spindle angle
(C-axis position)—default: Current spindle angle
Z1 starting point of thread
—default: Starting point Z
Z2 end point of thread
I diameter of thread
R approaching radius
—default: (I—milling diameter)/2
F1 thread pitch
J direction of thread
—default: 0
J=0: Right-hand
J=1: Left-hand
H cutting direction
—default: 0
H=0: Up-cut milling
H=1: Climb milling
SR return speed
for enabling the tap to retract rapidly—default:
Same spindle speed as for tapping
T tool number
S spindle/cutting speed
for the driven tool
Use threading tools for this cycle.
Danger of collision!
Be sure to consider the hole diameter and the diameter of
the milling cutter when programming "approaching
radius R."