Operation Manual

HEIDENHAIN CNC PILOT 4290 543
6.15 Automatic Working Plan Generation (AWG)
Machining sequence for undercuts
Machining sequence for thread cutting
Main machining Submachining Location Description
Undercuts Contour analysis/machining: Determining the “Undercuts”
form elements:
Type H – Machining using single paths of traverse; copying tool
(type 22x)
Type K – Machining using single paths of traverse; copying tool
(type 22x)
Type U – Machining using single paths of traverse; recessing
tool (type 15x)
Type G – Machining using cycle G860
Sequence: First outside, then inside machining; first radial, then
axial machining
All recess types; outside and inside
Type H, K, U, G (*) Outside Machining – outside
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.
Main machining Submachining Location Description
Thread cutting Contour analysis: Determining the “Thread” form elements.
Sequence: First outside, then inside machining; the elements are
then 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