Teach-in | Turning cycles
5
250
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
Roughing and finishing an inside contour
The shaded area from AP (Start point contour) to EP (End point
contour) is rough-machined with the "Cut longitudinal—expanded"
cycle, taking oversizes into account. This contour area is to be
finished subsequently with the "Finishing cut longitudinal—
expanded" cycle.
The rounding arc and the chamfer at the contour end are both
machined in expanded mode.
The Start point contour X1, Z1 and End point contour X2, Z2
parameters determine the cutting and infeed directions—in this
example, internal machining and infeed in positive X-axis direction.
Tool data:
Turning tool (for internal machining)
TO = 7 – Tool orientation
A = 93° – Tool angle
B = 55° – Point angle
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