If you’re new to rotary broaching and just want to know the basics, keep these few points in mind:
1. Chamfer to the sharp corners of the broach
2. Oversize pilot hole (3% for hexagons, 10% for squares)
3. Leave room for chips in the bottom of the hole
These suggestions also apply to rotary broaching stainless steel:
1. Slower feed rate, about .001 IPR
2. Slower RPM (50-100) until contact .005-.010″ deep, then ramp up to full RPM
For more information, contact sales@polygonsolutions.com
Polygon Solution’s GT Rotary Broach Holder
