Teach-in | Thread and undercut cycles
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HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
API thread
Select Thread cutting
Select API thread
Select the type of thread:
On: Internal thread
Off: External thread
This cycle cuts a single or multi-start external or internal API thread.
The depth of thread decreases at the thread run-out.
Cycle parameters:
X, Z: Start point
X1, Z1: Start point thread
X2, Z2: End point thread
F1: Thread pitch (= feed rate)
D: No.gears (default: 1 single-start thread)
U: Thread depth (default: no input)
Outside thread: U = 0.6134 * F1
Inside thread: U = –0.5413 * F1
I: Max. approach
I < U: First cut with I, all subsequent cuts with cutting-depth
reduction
I = U: One cut
No input: I is calculated from U and F1
WE: Run-out angle (range: 0° < WE < 90°)
W: Taper angle (range: –60° < W < 60°)
G47: Safety clearance
Further information: "Safety clearance G47", Page 180
T: Tool number – turret pocket number
G14: Tool change point
Further information: "Tool change point G14", Page 180
ID: ID no.
S: Constant spindle speed
GV: Type of infeed
Further information: "GV parameter: Type of infeed", Page 313
0: Const. mach. X-section
1: Const. infeed
2: EPL with distrib. of cuts
3: EPL w/o distrib. of cuts
4: MANUALplus 4110
5: Constant infeed (4290)
6: Const. w/ distrib. (4290)
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