HEIDENHAIN 548431-05, User Manual, Page: 338 / 722

Teach-in | Thread and undercut cycles
5
338
HEIDENHAIN | MANUALplus 620 | User's Manual | 12/2017
Undercut DIN 509 F
Select
Thread cutting
Undercut DIN 509 F
Select the scope of the cycle:
Off
: When the cycle is completed, the tool
remains at the cycle end position
On : The tool returns to the starting point
The cycle machines an
Undercut DIN 509 F
, a cylinder start
chamfer, then the adjoining cylinder, and finishes with the plane
surface. You can define a finishing oversize for the area of the
cylinder. The cylinder chamfer is executed when you enter at least
one of the parameters
Cylinder 1st cut length or Cut-in radius .
Cycle parameters:
X , Z : Start point
X1
,
Z1
:
Start point cylinder
X2 , Z2 : End point transv.
U
:
Grind. overs.
for the area of the cylinder (default: 0)
E : Reduced feed for the plunge cut and the thread chamfer
(default: Feed per revolution F )
I : Undercut depth (default: standard table)
K : Undercut length (default: standard table)
W
:
Undercut angle
(default: standard table)
R : Undercut radius on both sides of the undercut (default: value
from standard table)
P2 : Surf. depth (default: standard table)
A
:
Face angle
(default: standard table)
T : Tool number – turret pocket number
G14
:
Tool change point
Further information: "Tool change point G14", Page 180
ID : ID no.
S : Cutting speed or Constant speed
F
:
Feed per revolution
B : Cylinder 1st cut length (default: no start chamfer)
WB : Cut-in angle (default: 45°)
RB
:
Cut-in radius
(no input: no element, positive value: first cut
radius, negative value: chamfer)
G47 : Safety clearance
Further information:
"Safety clearance G47", Page 180 —
evaluated only if
With return
is active
MT : M after T : M function that is executed after the tool call T