HEIDENHAIN CNC Pilot 4290 - Manual (Page 328)

6 TURN PLUS 316
Continued
6.13 A
u
tomatic W
o
rking Plan Gener
ation (A
WG)
Main machining Submachining Location Execution
Undercuts – continued
Type H, K, U, G (*) Inside Machining, inside
*: Define the undercut type
TURN PLUS uses roughing and finishing
operations to machine undercut type G.
Undercut type G is only machined with an
undercut cycle if no suitable roughing/finishing
tool is available.
Thread cutting Contour analysis: Determining the thread types.
Sequence: External machining precedes internal
machining. Then the elements are machined according to
the sequence of geometrical definition.
– – Machining cylindric (longitudinal), tapered and transverse
threads on the outside and inside of a contour.
Cylindric (longitudinal)
Tapered, transverse (*) Outside Machining an external thread
Cylindric (longitudinal)
Tapered, transverse (*) Inside Machining a threaded hole
*: Define the type of thread
Drilling Contour analysis: Determine the type of bore hole (form
elements).
Sequence – drilling operation/drilling combinations:
■ Centering / centering & countersinking
■ Drilling
■ Countersinking / drilling & countersinking
■ Reaming / drilling & reaming
■ Tapping / drilling & threading
Sequence – machining location:
■ Center
■ Front face (also for Y front face)
■ Lateral surface (also for Y lateral surface)
– following that, sequence of geometrical definition.
– – Machining all bore holes on all machining locations
Centering, drilling,
Countersinking, reaming,
tapping (*) – Execution of the selected drilling operation on all
machining locations