The example above illustrates keyway broaching on a chain pinion executed with the REV BROACHING TOOL. To achieve burr-free broaching, the keyway is executed with chamfering of 0.2 x 45° on the edges adjacent to the hole with a diam. of 25 H7. Using the REV BROACHING TOOL avoids having to move the workpiece, therefore greatly reducing processing times and offering quicker machine tooling times in comparison to traditional broaching and slotting machines. Also, using the REV BROACHING TOOL, once the alignment has been checked on the first keyway, all keyways executed thereafter will be perfectly aligned with the diametral level of the hole. This alignment is otherwise very difficult to achieve when lathing and broaching processing is carried out on different machines, due to the grip error that is inevitably generated.

PROGRAMMING EXAMPLES:

Highlighted in red only the values that require editing

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O1000 (RECALL MACRO G68 INT-EXT)

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

M98P8000

M30