HEIDENHAIN TNC 620 User Manual page 144

5
Fixed cycles: Pocket milling / stud milling / slot milling
5.4 SLOT MILLING (Cycle 253, DIN/ISO: G253, software option 19)
Feed rate for plunging Q206: Traversing speed of
the tool while moving to depth in mm/min. Input
range 0 to 99999.999; alternatively FAUTO, FU, FZ
Infeed for finishing Q338 (incremental): Infeed per
cut. Q338=0: Finishing in one infeed. Input range 0
to 99999.9999
Set-up clearance Q200 (incremental): Distance
between tool tip and workpiece surface. Input range
0 to 99999.9999; alternatively PREDEF
Coordinate of workpiece surface Q203 (absolute):
Coordinate of the workpiece surface. Input range
-99999.9999 to 99999.9999
2nd set-up clearance Q204 (incremental):
Coordinate in the spindle axis at which no collision
between tool and workpiece (fixtures) can occur.
Input range 0 to 99999.9999; alternatively PREDEF
Plunging strategy Q366: Type of plunging strategy:
Feed rate for finishing Q385: Traversing speed of
the tool during side and floor finishing in mm/min.
Input range 0 to 99999.999; alternatively FAUTO,
FU, FZ
144
0 = vertical plunging. The plunging angle
(ANGLE) in the tool table is not evaluated.
1, 2 = reciprocating plunge. 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.
Alternative: PREDEF
NC blocks
8 CYCL DEF 253 SLOT MILLING
Q215=0 ;MACHINING OPERATION
Q218=80 ;SLOT LENGTH
Q219=12 ;SLOT WIDTH
Q368=0.2 ;ALLOWANCE FOR SIDE
Q374=+0 ;ANGLE OF ROTATION
Q367=0 ;SLOT 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
PLNGNG
Q338=5 ;INFEED FOR FINISHING
Q200=2 ;SET-UP CLEARANCE
Q203=+0 ;SURFACE COORDINATE
Q204=50 ;2ND SET-UP
CLEARANCE
Q366=1 ;PLUNGE
Q385=500 ;FINISHING FEED RATE
9 L X+50 Y+50 R0 FMAX M3 M99
TNC 620 | User's Manual Cycle Programming | 3/2014