HEIDENHAIN TNC 640 (34059x-05) Cycle programming - Manual (Page 369)

TURN CONTOUR FACE
(Cycle 820, DIN/ISO: G820)
12.15
12
TNC 640 | User's Manual Cycle Programming | 1/2015
369
Oversize in Z Q484 (incremental): Oversize for the
defined contour in axial direction
Finishing feed rate Q505: Feed rate during
finishing. If M136 has been programmed, the
value is interpreted by the TNC in millimeters per
revolution, without M136 in millimeters per minute.
Plunging Q487: Permit machining of plunging
elements:
0 : Do not machine plunging elements
1 : Machine plunging elements
Feed rate for plunging Q488: Feed rate for
machining of plunging elements. This input value
is optional. If it is not programmed, the feed rate
defined for turning is effective.
Cutting limit Q479: Activate cutting limit:
0 : No cutting limit active
1 : Cutting limit ( Q480/Q482)
Limit value for diameter Q480: X value for contour
limitation (diameter value)
Limit value Z Q482: Z value for contour limitation
Contour smoothing Q506:
0 : After each cut along the contour (within the
infeed range)
1 : Contour smoothing after the last cut (complete
contour); retract below 45°
2 : No contour smoothing; retract below 45°
NC blocks
9 CYCL DEF 14.0 CONTOUR
10 CYCL DEF 14.1 CONTOUR LABEL2
11 CYCL DEF 820 TURN CONTOUR
FACE
Q215=+0
;MACHINING
OPERATION
Q460=+2 ;SAFETY CLEARANCE
Q499=+0 ;REVERSE CONTOUR
Q463=+3 ;MAX. CUTTING DEPTH
Q478=+0.3 ;ROUGHING FEED RATE
Q483=+0.4 ;OVERSIZE FOR
DIAMETER
Q484=+0.2 ;OVERSIZE IN Z
Q505=+0.2 ;FINISHING FEED RATE
Q487=+1 ;PLUNGE
Q488=+0 ;PLUNGING FEED RATE
Q479=+0 ;CUTTING LIMIT
Q480=+0 ;LIMIT VALUE FOR
DIAMETER
Q482=+0 ;LIMIT VALUE IN Z
Q506=+0 ;CONTOUR SMOOTHING
12 L X+75 Y+0 Z+2 FMAX M303
13 CYCL CALL
14 M30
15 LBL 2
16 L X+75 Z-20
17 L X+50
18 RND R2
19 L X+20 Z-25
20 RND R2
21 L Z+0
22 LBL 0