Sinumerik SLOT 2 is a consolidated roughing-finishing cycle. This cycle used for machine circular slot arranged on a circle.

SLOT 2 ( RTP ,RFP , SIDS , DP , DPR , NUM , AFSL , WID , CPA , CPO , RAD , STA1 , INDA                 , FFD , FFP1 , MID , CDIR , RAL , VARI , MIDF , FFP2 , SSF , FFCP )

Where RTP = Retraction plane
RFP = Reference plane
SIDS = Safety clearance
DP =  Slot depth
DPR = Slot depth  relative to reference plane
NUM = Numbers of slots
LENG = Length of slot
WID = Width of circumferential slots
CPA = Center point of circle , abscissa (x-axis)
CPO = Center point of circle , ordinate (y-axis)
RAD= Radius of a circle
STA1= Starting angle
INDA= Increamenting angle
FFD = Feed rate for depth infeed
FFP1 = Feed rate for surface machining
MID = Maximum infeed depth for one infeed
CDIR = Machining direction  value :
2( for G02 )
3(for G03 )
FAL = Slot edge finishing allowance
VARI =  Machining type
UNIT DIGIT :
0- complete machining
1- Roughing
2- Finishing
TENS DIGIT
0- Positioning from a slot to slot on the straight line with G0
1- Positioning from a slot to slot on a circular path with a feed rate
MIDF = Maximum infeed depth for finishing
FFP2 = Feedrate for finishing
SSF = Speed when finishing
FFCP = Feed rate for intermediate positioning on a circular path in mm/min

Example :- Depth of slots is 30 mm & radius of a circle (RAD) is 30 mm

HARSH.MPF
N10  G90 G71 M06  T03 D01 ;
N20  M03 S1000 M08 ;
N30  G17 G00 X60 Y50 Z50 ;
N40  SLOT 2 ( 10 , 0 , 5 , -30 , _ , 3 , 60 , 15 , 60 , 50 , 30 , 60 , 120 , 100 , 300 , 10 , 2 , 0.5 , 2 ,                             10, 400, 1200, 10 )
N50  G00 Z50 ;
N60  M05 M09 M30 ;

DESCRIPTION

HARSH.MPF- Name of the main program
N10 -  Absolute coordinate system, a metric input command, Tool change command select tool no  3 .
N20- Spindle On clockwise at the speed 1000 rpm & coolant is on
N30-  Internal threading at XY- plane, rapid traverse command where tool takes a position at reference point where X60 , Y50 & Z50 .
N40 - call SLOT 2 ( RTP= 10 , RFP= 0 , SIDS= 5 , DP=-30 , DPR =_ , NUM = 3 , AFSL= 60 , WID=15 ,CPA = 60 , CPO= 50 , RAD= 30 , STA1=60 , INDA= 120 ,FFD = 100 , FFP1= 300 , MID= 10 , CDIR = 2 , FAL =0.5 , VARI= 2 , MIDF= 10 , FFP2 =400 , SSF= 1200 , FFCP =10 )
N50 - Tool goes rapidly up position .
N60- Spindle stop , coolant off , main prog. end

Siemens Sinumerik SLOT 2 cnc program ( Circumferential slot ) Reviewed by www.hdknowledge.om on March 26, 2019 Rating: 5

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