HEIDENHAIN SW 68894x-02 - Manual (Page 205)

HEIDENHAIN CNC PILOT 640 205
4.5
Recessing
cy
cles
Type of machining for technology database access: contour
recessing
By setting the following optional parameters, you can define
additional contour elements:
 A:Oblique cut at contour start
 W:Oblique cut at contour end
 R:Rounding arc (in both corners of the contour valley)
 B1:Chamfer/Rounding at contour start
 B2:Chamfer/Rounding at contour end
Cycle run
1 Calculate the recess positions and the proportioning of cuts
2 Approach the workpiece for next recess from starting point or from
last recess on paraxial path
3 Move at the programmed feed rate to the contour end point X2,
or if defined, to one of the optional contour elements
4 Remain at this position for a dwell time of two revolutions
5 Retract and approach for next pass
6 Repeat 3 to 5 until the complete recess has been machined
7 Repeat 2 to 6 until all recesses have been machined
8 Return to starting point on paraxial path
9 Move to the tool change point according to the G14 setting
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