FULL FORM OR TWO CORNER PUNCH BROACHING

• Position broach tool a sufficient distance away from face of workpiece to allow for acceleration to full cutting speed
• Use machine’s peck mode and feed to the desired depth. Alternatively, program the machine to rapid in and then retract the tool in .005 increments
• Spindle lock or ability to program lock is required

KEYWAY OR SINGLE POINT PUNCH BROACHING

• Position the tool at least 1” away from face of workpiece to allow for acceleration to full cutting speed (otherwise could contribute to deflection or tapering)
• .0008-.0015” doc per pass/ 200-550 IPM (inches per minute)
• After feeding to desired depth, program machine to drop down away from toot
• Chip must break off completely after each pass; program tool to enter into relief groove (blind hole) or pass end of part (through hole)
• Spindle lock or ability to program lock is required