-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
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