HEIDENHAIN CNC Pilot 4290 V7.1 - Manual (Page 543)

HEIDENHAIN CNC PILOT 4290 543
6.15 A
u
to
matic W
o
rk
ing Plan Gener
a
tion (A
WG)
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