HEIDENHAIN CNC Pilot 4290 - Manual (Page 313)

HEIDENHAIN CNC PILOT 4290 301
”Form element machining” soft keys
Undercut type F
Undercut type G
Relief turn
Switch over the soft-key row for the
selection of the following form
elements:
Chamfer
Rounding
Fit
Threads
Switch over the soft-key row for the
selection of the following form
elements:
Undercut type H
Undercut type K
Undercut type U
Recess general
Recess form S
Recess form D
Switch back the soft-key row
6.12.7 Finishing
Overview of finishing operations
■ Finishing – Contour machining (G890)
■ Finishing - Clearance turning
■ Finishing – Undercut
■ Finishing – Residual-contour machining (G890 – Q=4)
■ Hollowing finishing – neutral tool (G890 – Q=4)
Notes on using TURN PLUS:
You define the ”approach type, retraction type and form-element
machining” by soft key – see the following tables.
”Finishing – Approach” soft keys
Approach: Automatic selection – the IWG checks:
■ Diagonal approach
■ First X, then Z direction
■ Equidistant around the obstacle
■ Omission of the first contour elements, if the starting
position is inaccessible
Approach: First X, then Z direction
Approach: First Z, then X direction
”Finishing - Retraction” soft keys
Backs off at 45° against the machining direction and
moves diagonally to the retraction position
Backs off at 45° against the machining direction and
moves first in the X direction, then in the Z direction to
the retraction position
Backs off at 45° against the machining direction and
moves first in the Z direction, then in the X direction to
the retraction position
Backs off at feed rate to the safety clearance
”Form element machining” soft keys
Switch over the soft-key row for the selection of the
following form elements:
Undercut type E
6.12 Int
er
activ
e
W
o
rking Plan Gener
ation (IWG)