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 0.2 x 45° chamfering 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, with 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

 O1000(RECALL MACRO O1000)
 
 #1=0 (0=INT-PROCESSING 1=EXT-PROCESSING)
 #2=0707 (TOOL NUMBER - WARNING: DO NOT ENTER T BEFORE 0707)
 #3=15.0 (Z AXIS WORK START DISTANCE)
 #4=0.2 (X AXIS WORK START DISTANCE)
 #5=25 (HOLE OR SHAFT DIAMETER)
 #6=8 (INSERT WIDTH)
 #7=3.3 (PROCESSING DEPTH ON X AXIS RADIUS)
 #8=30 (PROCESSING LENGTH ON Z AXIS)
 #9=6000 (CUTTING SPEED IN MILLIMETRES PER MINUTE)
 #10=0,05 (INCREMENT OF EACH PASS)
 #11=0 (ADMITTED DRAUGHT ERROR ON LONGITUDINAL RADIUS OF 0.25 MAX)
 #12=90 (DEPARTURE ANGLE 90°/45°)
 #13=2 (NUMBER OF FINISHINGS WITHOUT REMOVAL)
 #14=1 (NUMBER OF OPERATIONS)
 #15=0 (C-AXIS ANGLE BEFORE PROCESSING)
 #16=0 (ANGLE BETWEEN OPERATIONS)
 #17=0 (CODE G RETURN 0= FAST- 1=WORK)
 #18=6000 (FEED BACK Z AXIS ACTIVATED ONLY IF #17=1)
 #19=0 (WORKING ANGLE 0=CYLINDRICAL/WITH VALUE=CONICAL)
 #20=0 (HELIX ANGLE +- INTERPOLATED WITH C AXIS)
 #21=0 ( PRIMITIVE DIAMETER OF SPIRAL TEETH)
 #22=35 (CODE M ON C AXIS)
 #23=34 (CODE M OFF C AXIS)
 #24=90 (CODE M BRAKE RELEASE C AXIS)
 #25=89 (CODE M BRAKE LOCK C AXIS)
 #26=8 (REFRIGERANT 8=ON 0=OFF)
 #27=1 (BRAKE 0=NO 1=YES)
 
 M98P8000 (RECALL MACRO)
 
 (M99=BACK TO MAIN PROGRAMME)
 OR (M30=END PROGRAMME)