HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 541)

HEIDENHAIN CNC PILOT 4290 541
6.15 A
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Machining sequence for recess turning
Main machining Submachining Location Execution
Recess turning Contour analysis:
„ Without previous roughing operation: The complete contour,
including recess areas (undefined recesses), is machined.
„ With previous roughing: Recess areas (undefined recesses) are
determined and machined according to the “inward copying
angle (EKW).”
Sequence: First outside, then inside machining
Machining parameter: 1 Global parameters for finished parts
– – Radial/axial machining – outside and inside
Contour-parallel Outside Radial machining – outside
Contour-parallel Inside Radial machining – inside
Contour-parallel Outside/
front Axial machining – outside
Contour-parallel Inside/front Axial machining – inside
„ If recess turning precedes hollowing in the machining
sequence, recess areas are machined by recess turning
– exception: no suitable tools are available.
„ Recess turning – contour turning are used alternatively.