Teach-in | Recessing cycles
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HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
Undercut. Form U
Select Recessing cycle
Select Undercut U
This cycle machines an Undercut type U and, if programmed,
finishes the adjoining plane surface. The undercut is executed in
several passes if the Underc. breadth is greater than the cutting
width of the tool. If the cutting width of the tool is not defined, the
control assumes that the tool’s cutting width equals the Underc.
breadth. Either a chamfer or a rounding arc can be machined.
Cycle parameters:
X, Z: Start point
X1, Z1: Contour corner
X2: End point transv.
I: Undercut diameter
K: Underc. breadth
B: -B cham./+B round.
B > 0: Radius of rounding
B < 0: Width of chamfer
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: Cutting speed or Constant speed
F: Feed per revolution
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:
Finishing
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