-Troubleshooting for Drills
Troubleshooting for Drills
| PROBLEM |
SUGGESTIONS |
| Chipping on point |
Reduce feed rate
Check part rigidity
Constant feed rate
Verify speeds and feeds
Minimum drill overhang
Reduce number of peck cycles
|
| Chipping on O.D. |
Reduce feed rate
Confirm concentricity of drill in holder
Check coolant flow and location
Check part rigidity
|
Breakage |
Reduce feed rate
Check your program-is ‘R’ clearing the part
Check coolant flow and location
Check part rigidity
|
Heavy wear on corners |
Increase feed rate
Check coolant flow and location
Confirm concentricity of drill in holder
Check part rigidity
|
Long, stringy chips |
Increase feed rate
Increase hone relief
Constant feed rate
Increase number of peck cycles
|
Excessive noise |
Check drill
Check part rigiditiy
Check for proper speeds and feeds
|
Tool life |
Lower speeds and feeds
Check coolant flow and location
Confirm concentricity of drill in holder
Confirm coolant concentration
|
Hole too small |
Increase feed rate
Confirm coolant concentration
Confirm drill diameter
|
Hole too large |
Reduce feed rate
Slow feed rate to start hole
Increase RPMs
Spot hole
|
Chip welding |
Increase RPMs by 20%
Confirm coolant concentration
Check coolant flow and location
|
Chip packing |
Add a peck cycle to clear chips
Increase RPMs
Reduce feed rate
Check coolant flow and location
|
