Teach-in | Thread and undercut cycles
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HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
R: Rem. cut depth (only with GV = 4; default: 1/100 mm)
IC: Number of cuts – the infeed is calculated from IC and U
Usable with:
GV = 0: Constant chip cross section
GV = 1: Constant infeed
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
WP: No. of spindle – Displays which workpiece spindle is used
to execute the cycle (machine-dependent)
Main drive
Opposing spindle for rear-face machining
BW: Angle in the B axis (machine-dependent)
CW: Reverse the tool (machine-dependent)
HC: Shoe brake (machine-dependent)
DF: Miscellaneous function (machine-dependent)
Type of machining for technology database access:
Thread cutting
Cycle run:
1 Calculate the proportioning of cuts
2
Start the first pass at the Start point Z
3
Move to the End point thread Z2 at the programmed feed rate
4 Return on a paraxial path and approach for the next pass
5
Repeat 3 to 4 until the Thread depth U is reached
6
Move to the Tool change point according to the setting in G14
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