Каталог Iscar сверла со сменной режущей частью 2022 - страница 129

Troubleshooting

Undersized holes Oversized holes Cone Hole

Rotating drill Rotating drill

• Check that overlapping is correct
• Use shorter drill overhang (if possible)

between inner and outer inserts Reduce feed by 30-50%

• Check inner insert over center
• Check that overlapping is correct
• Increase coolant pressure between inner and outer inserts
• Change the insert chipbreaker
• Check inner insert is positioned over center

within its limits Non-rotating drill

• Increase coolant pressure
• Check misalignment
• Change the insert chipbreaker
• Check that overlapping is correct between inner and outer inserts Non-rotating drill
• Check inner insert over center
• Check misalignment
• Rotate drill 180 degrees
• Check that overlapping is correct
• Increase coolant pressure between inner and outer inserts
• Change the insert chipbreaker
• Check inner insert is positioned over center

within its limits

• Rotate drill 180 degrees
• Increase coolant pressure

Pin in hole Vibrations Change the insert chipbreaker

Bad Surface Finish

Rotating drill

• Use shorter drill overhang (if possible)
• Reduce feed by 30-50%
• Check that overlapping is correct between inner and outer inserts Rotating drill
• Check inner insert is positioned over center within its limits
• Improve chip formation (change chipbreaker
• Increase coolant pressure type or cutting condition)
• Change the insert chipbreaker
• Increase coolant pressure
• Increase speed and reduce feed

Non-rotating drill

• Stabilize clamping device
• Check misalignment
• Check that overlapping is correct Non-rotating drill between inner and outer inserts Improve chip formation (change chipbreaker
• Check inner insert over center type or cutting condition)
• Rotate drill 180 degrees
• Increase coolant pressure
• Increase coolant pressure
• Increase speed and reduce feed
• Change the insert chipbreaker
• Stabilize clamping device