How to Correct Burn Marks
Burn Marks
on the Ground Surface of a Part occur when the Part is too soft or when too
much heat is generated against the Part by the Grinding Wheel. When Burn Marks
are observed on a Part it must be scrapped.
1. |
The Grinding Wheel is dull. |
2. |
The Diamond Dresser is blunt or damaged and is therefore not dressing the Grinding Wheel correctly. |
3. |
Coolant level is too low. |
4. |
Coolant is contaminated. |
5. |
Table Slide Speed is too high for the Grinding Wheel currently in use. |
6. |
The Part count between dressings is too low. |
7. |
The Grinding Wheel is too hard. |
8. |
The Grinding Wheel is too fine. |
9. |
Dressing Speed is to low. |
10. |
Part was not heat treated correctly. |
1. |
Dress the Grinding Wheel. Click here for procedure |
2. |
Replace the Diamond Dresser. Click here for procedure |
3. |
Check the coolant level. |
4. |
Replace the Coolant Unit Filter Paper. |
5. |
Change the Table slide speed . This is a protected program field that requires you to contact USACH. |
6. |
Make sure the part count between dressings is set between 8 and 12. Click here for procedure |
7. |
Replace the Grinding Wheel with a softer one. |
8. |
Replace the Grinding Wheel with a more course one. Click here for procedure |
9. |
Make sure the Grinding Wheel Dress Speed (variable 505) is set according to Grinder 500 Variables Table. |
10. |
Notify your supervisor that the parts entering the Grinder are not heat treated correctly. |
