Name: Siemens SINUMERIK 808D
Brand: Siemens
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Cycles

2.5 Turning cycles

Turning Part 2: Programming (Siemens instructions)

Programming and Operating Manual, 05/2012, 6FC5398-5DP10-0BA0

187

2.5.8 Thread cutting - CYCLE99

Programming

CYCLE99(SPL, DM1, FPL, DM2, APP, ROP, TDEP, FAL, IANG, NSP, NRC, NID, PIT,

VARI, NUMTH, _VRT, PSYS, PSYS, PSYS, PSYS, PSYS, PSYS, PSYS, PITA, PSYS,

PSYS, PSYS, PSYS)

Parameters

Parameter Data type Description

SPL REAL Thread starting point in the longitudinal axis

DM1 REAL Thread diameter at the starting point

FPL REAL Thread end point in the longitudinal axis

DM2 REAL Thread diameter at the end point

APP REAL Run-in path (enter without sign)

ROP REAL Run-out path (enter without sign)

TDEP REAL Thread depth (enter without sign)

FAL REAL Finishing allowance (enter without sign)

IANG REAL Infeed angle

Range of values: "+" (for flank infeed at the flank), "-" (for alternating

flank infeed)

NSP REAL Starting point offset for the first thread turn (enter without sign)

NRC INT Number of roughing cuts (enter without sign)

NID INT Number of idle passes (enter without sign)

PIT REAL Thread lead as a value (enter without sign)

!!! the unit is defined in parameter PITA

Definition of the machining type for the thread VARI INT

Values 300101 external thread with linear infeed

300102 internal thread with linear infeed

300103 external thread with degressive infeed

300104 internal thread with degressive infeed

NUMTH INT Number of thread turns (enter without sign)

_VRT REAL Variable retraction path based on initial diameter, incremental (enter

without sign)