Teach-in | Drilling cycles
5
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
357
Axial thread milling
Select Drilling
Select Axial thread milling
The cycle mills a thread in existing holes.
Use threading tools for this cycle.
Cycle parameters:
X, Z: Start point
C: Spindle angle – C-axis position (default: current spindle
angle)
Z1: Start point drill (default: drilling starts from Z)
Z2: End point drill
F1: Thread pitch (= feed rate)
J: Direction of thread:
0: Right-hand thread
1: Left-hand thread
I: Thread diameter
R: Approach radius (default: (I – milling diameter)/2)
H: Mill cutting direction
0: Up-cut
1: Climb
V: Milling method
0: One revolution – the thread is milled in a 360-degree
helix
1: Two or more revolutions – the thread is milled in several
helix paths (single-point tool)
SCK: Safety clearance
Further information: "Safety clearances SCI and SCK",
Page 180
T: Tool number – turret pocket number
G14: Tool change point
Further information: "Tool change point G14", Page 180
ID: ID no.
S: Cutting speed or Constant speed
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
MFE: M at end: M function that is executed at the end of the
machining step
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