HEIDENHAIN CNC Pilot 4290 - Manual (Page 324)

6 TURN PLUS 312
6.13 A
u
tomatic W
o
rking Plan Gener
ation (A
WG)
Continued
List of Machining Sequences
Main machining Submachining Location Execution
Centric predrilling Contour analysis: Determining the drilling steps
Machining parameter: Centric predrilling (3)
– – Predrilling, 1st step
Predrilling, 2nd step
Finish-drilling
Predrilling – Predrilling, 1st step
Predrilling, 2nd step
Finish-drilling – Finish-drilling
Roughing (without hollowing) Contour analysis: Subdivision of the contour into areas
for external longitudinal/external transverse and internal
longitudinal/internal transverse machining, using the
transverse/longitudinal ratio (PLVA, PLVI).
Sequence: External machining precedes internal
machining.
Machining parameter: Roughing (4)
– – Transverse machining, longitudinal machining - inside and
outside
Longitudinal – Longitudinal machining – outside and inside
Longitudinal Outside Longitudinal machining – outside
Longitudinal Inside Longitudinal machining – inside
Transverse – Transverse machining
Contour-parallel – Contour-parallel machining – outside and inside
Contour-parallel Outside Contour-parallel machining – outside
Contour-parallel Inside Contour-parallel machining – inside
(Roughing) Hollowing Contour analysis: Using the ”inward copying angle
(EKW),” you can determine recess areas (undefined
recesses). The workpiece is machined with one or two
tools.
Sequence: External machining precedes internal
machining.
Machining parameters: Global finished-part parameters
(1)
– – Longitudinal/transverse machining – outside and inside
Longitudinal Outside Longitudinal machining – outside
Longitudinal Inside Longitudinal machining – inside