CNC Broaching FAQ's:

How Do I Broach on my CNC mill or CNC Lathe with Razorform?

Each job has many different factors such as material, quality of machine, slop in the spindle, and the IQ of the operator. These are general guidelines that you must job specifically perfect.

Depending on the material being cut , take .0005-.0015" per pass at 250-550 IPM. Small shaving passes increases insert life and eliminates deflection and wear on your expensive machinery. High speeds allow the the insert to bite in and shear off the chip and help cycle times.

See Keys to Using Razorform at the bottom of the page for more info.

Will CNC Lathe Broaching or CNC Mill Broaching at high speeds damage or beat up the ball screws on my machine?

No. Not If you follow the recommended feeds, speeds and set-up info. Our keyway cutter is designed for a shaving style of broaching which doesn't have the impact and shock that is associated with the older styles of broaching that take much deeper depths of cut.

For CNC Broaching do I need a spindle lock?

Yes. But it is also possible to lock in the program, allowing you to plunge in for your cut.

Can I buy Razorform Keyway Cutters through distributors?

No. To protect our brand it is Razorform policy to sell direct to end users only. We feel distributors/middlemen only add expense to our product by marking it up.

By eliminating distributors we have been able to pass on the savings to our end-users. 

In spite of the fact that the cost of carbide has gone up 200-300%  in the 6 years since we opened for business we are proud to say we have never raised the prices on our keyway cutting inserts ...how many of your other vendors can claim zero price increases in 6 years?

Who do I contact if I have a problem with CNC Broaching?

We strongly encourage clients experiencing problems to call us at 310-822-2810 or email us at info@razorformtools.com

We are very skilled at diagnosing and advising over the phone. 

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Keys to Using
Razorform Broaching Tools

1. No Ramping, Slanting or Angled cuts. Razorform is designed for a straight-ahead cut. Improper use may result in the insert pulling out of the pocket or the tool crashing.
   
   
2. Check the tool holder with an indicator to ensure a rigid set-up throughout the cutting stroke.
   
   
3. You must use coolant for chip evacuation. If going into a blind hole there MUST be appropriate relief.
   
   
4. Carbide needs to be run very fast. We recommend 300-450 IPM (depending on material) on the rough cut and 150 IPM on the finish cut. Start the cut by taking .0008" per pass. Adjust from there. Cycle times won't be hurt by not taking very much off per pass because of the high speed.
   
   
5. Program the tool to drop down enough to clear the insert of the part and the keyway on the retraction. The insert must not rub at any point on the withdrawal or the corners may chip. 
   
   
6. Razorform Tools themselves are rigid and proven to NOT deflect even in Inconel, 8620, heat-treated 4140, and Titanium. Deflection will be from slop in the spindle on an older machine that hasn’t been recently serviced. Or most likely from improper set up. Contact us for trouble-shooting tips.
   
   
7.  For clients running long production. Change setscrews. Worn out by friction, setscrews will "flatten" and not grip causing insert "pop-up" and crashes.
   
   
8. You must have a locking spindle to operate Razorform Broaching Tools. Check the locking spindle with an indicator to ensure zero movement.
   
   
9. After use, additional hand-honing may extend insert life.
   
   
10. Contact us for more set-up info!