STOCK REMOVAL CYCLE PROGRAM FOR CNC LATHE ( CYCLE-95) EX-2

The billet dia. is 26 mm , we perform operation which is shown in fig

MAIN PROGRAM

HARSH .MPF

N01   G90 G71 G94 F100 ;

N02   G28 X0 Z0 ;

N03   M06 T06 D01 ;

N04   M03 S1000 ;

N05   M07 ;

N06   G00 X26 Z 2 ;

N07   Cycle 95 [ RAM , 0.2 ,0.1 ,0.1 , 0.1 , 200 , 300 , 200 , 9 ,_ ,_,_]

N08   G28 X0 Z0 ;

N09   M05 ;

N10    M09 ;

N11    M30 ;

SUB PROGRAM

RAM . SPF

N01  G01 X11 Z0 ;

N02  G01  X14  Z-1.5 ;

N03  G01  X14  Z-10 ;

N04  G02  X20  Z-20 CR=3 ;

N05  G01  X20  Z-20 ;

N06  G03  X26  Z-23 CR= 3 ;
N07  M17;                                                      More examples..........!!!!

DESCRIPTION OF PROGRAM :- 

MAIN PROGRAM

HARSH .MPF – Main program name

N01-   Program in absolute co-ordinate system ,  all dimension in mm , feed in mm permin , feed rate 100 .

N02 -  Referance point command where tool at X0 Z0 .

N03 – Tool change command , select tool no 6 and offset diameter 01 .

N04 – Spindle onclockwise at speed 1000 rpm.

N05 – Coolant ON.

N06 – Rapid command to near to the job and ready for machining .

N07 – For understanding these  block we have to need knowledge about “stock removal  cycle data “

Refer this link – STOCK REMOVAL CYCLE DATA

The following data directly put value in computer

          NPP – RAJ

          MID – 0.2

          FALZ – 0.1

          FALX – 0.1

          FAL -    0.1

          FF1 -   200

          FF2 –  300

          FF3 -   200

          VARI -  EXT=9(Operation perform externally therefore we take  9, if internally we take 11)

          DT -   ___ (skip it)

          DAM -  ____(skip it)

          VRT -   ____(skip it)

N08 -  Referance point command where tool at X0 Z0 .

N09 – Coolant  OFF .

N10 – Main program end .

 SUB PROGRAM

( NOTE -In sub program there is no use of G00 rapid command )

RAM .SPF – Sub program name

N01 – Tool moves linearly at X11 and Z0 .(Position A)

N02 – Tool start cutting  linearly at X14 and Z-1.5(chamfer) ; ( Position A to B)

               For chamfer calculation refer this link -

N03 – Tool moves toward position C linearly at X14 and Z-10 .(Position B to C)

N04 – There is inner radius=3 mm , it means tool moves counter clockwise toward  D at X20 and Z-13 .(Position C to D)

N05 - Tool moves toward position E linearly at X20 and Z-20 .(Position D to E)

N06 - – There is outer  radius=3 mm , it means tool moves clockwise toward  F at X26 and Z-23 .(Position E to F)
N07- Sub prog.  end

(Note : there is no need to machining  to last diameter , because given diameter for billet is 26 mm )