Rotary Broaching Recommendations by Common Workpiece Materials & Form Sizes

• This chart is provided as a reference to give starting point recommendations.
• Contact Slater Tools for the best solutions on your specific application.
• Larger external applications may require higher speeds or feeds.
• Slater Tools can also assist you with applications in plastics.
• In all materials, the smaller the broach diameter the lighter the feed should be.
• Lower feed rates give better workpiece finish. However, feed rates under 0.004 ipr can cause chips to lose flowing motion, creating excessive end loading pressure.
• Use rapid traverse when retracting off or out of a part.
• Mimimum and Maximum Conditions:
  • Speeds 400-3500 RPM (revolutions per minute)
  • Feeds 0.003-0.009 ipr (inches per revolution)