HEIDENHAIN iTNC 530 (340 49x-04) ISO programming - Manual (Page 382)

382 8 Programming: Cycles
8.4 Cy
cles f
o
r Milling P
o
c
k
ets, St
uds and Slots
 Depth Q201 (incremental value): Distance between
workpiece surface and pocket floor.
 Plunging depth Q202 (incremental value): Infeed per
cut. Enter a value greater than 0.
 Feed rate for plunging Q206: Traversing speed of
the tool while moving to depth in mm/min.
 Set-up clearance Q200 (incremental value): Distance
between tool tip and workpiece surface.
 Workpiece surface coordinate Q203 (absolute
value): Absolute coordinate of the workpiece surface.
 2nd set-up clearance Q204 (incremental value):
Coordinate in the tool axis at which no collision
between tool and workpiece (clamping devices) can
occur.
 Path overlap factor Q370: Q370 x tool radius =
stepover factor k. Maximum input value: 1.9999
Example: NC blocks
N80 G256 RECTANGULAR STUD
Q218=60 ;FIRST SIDE LENGTH
Q424=74 ;WORKPC. BLANK SIDE 1
Q219=40 ;SECOND SIDE LENGTH
Q425=60 ;WORKPC. BLANK SIDE 2
Q220=5 ;CORNER RADIUS
Q368=0.2 ;ALLOWANCE FOR SIDE
Q224=+0 ;ANGLE OF ROTATION
Q367=0 ;STUD POSITION
Q207=500 ;FEED RATE FOR MILLING
Q351=+1 ;CLIMB OR UP-CUT
Q201=-20 ;DEPTH
Q202=5 ;PLUNGING DEPTH
Q206=150 ;FEED RATE FOR PLUNGING
Q200=2 ;SET-UP CLEARANCE
Q203=+0 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP CLEARANCE
Q370=1 ;TOOL PATH OVERLAP
N100 G00 G40 X+50 Y+50 *
X
Z
Q200
Q201
Q206
Q203
Q204
Q202