Troubleshooting in parting and grooving

Bad surface

• Use a short and stable tool
• Take away the chips - use geometry with good chip control
• Check speed / feed guidelines
• Use wiper geometry
• Check tool set-up

Bad surface on aluminium

• Select the sharpest geometry
• Use geometry with good chip control
• Select a special soluble oil for the material

Poor chip breakage

• Change geometry
• Select a higher feed
• Use dwelling (pecking)
• Increase coolant

Vibration

• Use a stable set-up
• Check speed/feed guidelines
• Use shorter overhang
• Change geometry
• Check tool condition
• Check tool set-up

Poor tool life

• Check centre height
• Check angle between tool and component
• Check condition of the blade. If the blade is old,
  the insert could be unstable in the tip-seat

Built-up edge (B.U.E)

1. Cutting edge temperature too low
2. Unsuitable geometry or grade

1. Increase cutting speed and/or feed
2. Choose a geometry with a sharper edges preferably a PVD-coated grade

Chipping/breakage

1. Too hard grade
2. Too weak geometry
3. Unstable conditions
4. Too high cutting data

1. Choose a softer grade
2. Choose a geometry for higher feed area
3. Reduce overhang. Check centre height
4. Reduce cutting data

Plastic deformation (PD)

1. Excessive temperature in cutting zone
2. Unsuitable grade
3. Lack of coolant supply

1. Reduce cutting speed and/or feed
2. Choose more wear resistant grade
3. Improve coolant supply

Flank wear

1. Cutting speed too high
2. Too soft grade
3. Lack of coolant supply

1. Decrease cutting speed
2. Choose a more wear resistant grade
3. Improve coolant supply

Crater wear

1. Cutting speed too high
2. Too soft grade
3. Feed too high
4. Lack of coolant supply

1. Decrease cutting speed
2. Choose more wear resistant grade
3. Decrease feed
4. Improve coolant supply

Notch wear

1. Oxidation at the cutting depth
2. Cutting edge temperature too high

1. Use varying cutting depths (ramping)
2. Reduce cutting speed