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 setup

Bad surface on aluminum

• 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 setup
• Check speed/feed guidelines
• Use shorter overhang
• Change geometry
• Check tool condition
• Check tool setup

Poor tool life

• Check center 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 sharper edges, preferably a PVD-coated grade

Chipping/breakage

1. Grade too hard
2. Geometry too weak
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 center 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 a more wear-resistant grade
3. Improve coolant supply

Flank wear

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

1. Decrease cutting speed
2. Choose a 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