Troubleshooting Guide - CBN Wheels
| Issue | Potential Source of Problem | Suggested Fix |
|---|---|---|
| Wheel not cutting / Wheel burning / Excessive heat / Excessive noise | Wheel is loaded or glazed RPM/SFM too high Bond too hard |
Use Eagle suggested method to dress your wheel and open the bond
Reduce RPM/SFM Use a freer cutting bond specification |
|
Rapid / Excessive wheel wear
Poor shape retention |
Excess heat due to improper coolant nozzle orientation
Overfeeding RPM/SFM too low Bond is too soft |
Add coolant or Improve coolant nozzle positioning and pressure
Reduce feed rate and/or depth of cut Increase RPM/SFM Use a harder, better form-holding bond |
| Poor Finish |
Grit size is too coarse
Grinding wheel is out of balance/has run-out Wheel is loaded or glazed Bond is too soft |
Use a finer grit
Check all spindle bearings and/or belts Check to ensure wheel is balanced and true Use Eagle suggested method to dress your wheel and open the bond Use a harder bond |
FAQ
Q: Can I use a CBN wheel on stainless teel?
A: It is not recommended to use CBN wheels on stainless steel unless the part is hardened beyond 45 Rockwell C.
Q: Is a C75 wheel softer than a C100 wheel?
A: This can be true, but there are many other considerations to be made when determining bod hardness. Discuss your project with one of our Application Engineers for the best bond recommendation. Ask about our Bond Development Program.
Q: Will a B120 Grit cut more aggressively than a B150 grit?
A: This can be true, but there are many other considerations to be made when determining bod hardness. Discuss your project with one of our Application Engineers for the best bond recommendation. Ask about our Bond Development Program.
Q: Is there a “one size fits all” type bond that will work on many applications?
A: Depending on the application, there will normally be a sacrifice made if trying to use one wheel for multiple applications. The wheel may not cut as aggressively, or may leave a poor finish. Discuss your projects with one of our Application Engineers for the best bond recommendation. Ask about our Bond Development Program.
Q: Can Resin Bond wheels be re-coated?
A: The cores of Resin Bond wheels are easier to balance and rue when made new with each wheel.