HEIDENHAIN TNC 620 (340 56x-02) Cycle programming User Manual
Page 131
HEIDENHAIN TNC 620
131
5.2 RECT
ANGULAR POCKET (Cy
c
le 251, DIN/ISO: G251, A
d
v
a
nced
Pr
ogr
amming F
e
at
ur
es Sof
tw
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re
Option)
U
Path overlap factor
Q370: Q370 x tool radius =
stepover factor k. Input range 0.1 to 1.9999.
U
Plunging strategy
Q366: Type of plunging strategy.
0 = vertical plunging. The TNC plunges
perpendicularly, regardless of the plunging angle
ANGLE
defined in the tool table.
1 = helical plunging. In the tool table, the plunging
angle ANGLE for the active tool must be defined as
not equal to 0. The TNC will otherwise display an
error message.
2 = reciprocating plunge. In the tool table, the
plunging angle ANGLE for the active tool must be
defined as not equal to 0. Otherwise, the TNC
generates an error message. The reciprocation
length depends on the plunging angle. As a
minimum value the TNC uses twice the tool
diameter.
U
Feed rate for finishing
Q385: Traversing speed of
the tool during side and floor finishing in mm/min.
Input range: 0 to 99999.9999; alternatively FAUTO, FU,
FZ
.
Example: NC blocks
8 CYCL DEF 251 RECTANGULAR POCKET
Q215=0
;MACHINING OPERATION
Q218=80
;FIRST SIDE LENGTH
Q219=60
;2ND SIDE LENGTH
Q220=5
;CORNER RADIUS
Q368=0.2
;ALLOWANCE FOR SIDE
Q224=+0
;ANGLE OF ROTATION
Q367=0
;POCKET POSITION
Q207=500
;FEED RATE FOR MILLING
Q351=+1
;CLIMB OR UP-CUT
Q201=-20
;DEPTH
Q202=5
;PLUNGING DEPTH
Q369=0.1
;ALLOWANCE FOR FLOOR
Q206=150
;FEED RATE FOR PLUNGING
Q338=5
;INFEED FOR FINISHING
Q200=2
;SETUP CLEARANCE
Q203=+0
;SURFACE COORDINATE
Q204=50
;2ND SETUP CLEARANCE
Q370=1
;TOOL PATH OVERLAP
Q366=1
;PLUNGE
Q385=500
;FEED RATE FOR FINISHING
9 L X+50 Y+50 R0 FMAX M3 M99