KEYWAY ON CONICAL HOLE WITHOUT RELIEF

The figure illustrates an example of broaching executed with the REV BROACHING TOOL in a keyway with conical hole. The keyway broaching follows the profile of the conical hole and, accordingly ends up angular to the horizontal axis of the workpiece. This is a very difficult process to execute with traditional broaching and slotting machines. It is, however, very simple and very quick to execute with the REV BROACHING TOOL on CNC lathes or machining centres. A completely burr-free workpiece is achieved by creating a chamfered edge of 0.2 x 45° on the keyway inside the conical hole. Our company provides its customers with specific programmes for cnc.

PROGRAMMING EXAMPLES:

Highlighted in red only the values that require editing

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O1000 (RECALL MACRO G68 INT-EXT)

#1=0 (INT =0 /EXT =1 PROCESSING)
#2=180 (ANGULAR DIRECTION=180 )
#3=1 (TOOL NUMBER)
#4=11 (TOOL RADIUS)
#5=25.0 (HOLE DIAMETER)
#6=8.0 (INSERT THICKNESS)
#7=3.4 (PROCESSING DEPTH - ON RADIUS)
#8=30.0 (EFFECTIVE WORKING SECTION LENGTH ON Z AXIS)
#9=6000 (Z AXIS CUTTING SPEED)
#10=0.06 (INCREMENT WITH EACH PASS)
#11=5 (PROCESSING ANGLE 0=CYLINDRICAL)
#12=15.0 (Z AXIS PROCESSING START DISTANCE)
#13=0.2 (X AXIS PROCESSING START DISTANCE)
#14=0.0 (LONGITUDINAL ERROR ON Z AXIS)
#15=90 (DEPARTURE ANGLE 90°/45°)
#16=2 (NUMBER OF FINISHING PASSES WITHOUT REMOVAL)
#17=0 (CODE G RETURN 0=1)
#18=8000 (Z AXIS RETURN SPEED MM/MIN)
#19=0 (ORIGIN X)
#20=0 (ORIGIN Y)
#21=8 (CODE M REFRIGERANT 0=OFF)

M98P8000

M30