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WEAR TYPES

Wear types of milling cutters

to the wear types of drills

Wear type

Actions

Flank wear

wear between the workpiece and the flanks

✓ Reduce cutting speed (Vc)
✓ Increase feed rate (fz)
✓ Increase coolant pressure


 

Built-up edge

Parts of the material adhere to the cutting edge due to welding

✓ Increase cutting speed (Vc)
✓ Reduce feed rate (fz)
✓ Increase coolant pressure
✓ Use tool with a sharper cutting edge


 

Breakouts (along the cutting edge)

are caused by vibrations, chip jams, thermal cracks and excessive brittleness of the material

✓ Reduce cutting speed (Vc)
✓ Increase feed rate (fz)
✓ Increase coolant pressure
✓ Use tool with edge preparation e.g. VSO


 

Plastic deformation

due to too high temperatures and too high mechanical stresses

✓ Reduce cutting speed (Vc)
✓ Reduce feed rate (fn)
✓ Increase coolant pressure


 

Wear type

Actions

Flank wear

wear between the workpiece and the flanks

✓ Reduce cutting speed (Vc)
✓ Increase feed rate (fn)
✓ Increase coolant pressure


 

Built-up edge

Parts of the material adhere to the cutting edge due to welding

✓ Increase cutting speed (Vc)
✓ Increase feed rate (fn)
✓ Increase coolant pressure


 

Breakouts (along the cutting edge)

are caused by vibrations, chip jams, thermal cracks and excessive brittleness of the material

✓ Change tools in time and have them
reconditioned (WEDCO Service)
✓ Check tool clamping (vibrations)
✓ Check tool concentricity
✓ Reduce cutting speed (Vc)
✓ Reduce feed rate (fn)


 

Plastic deformation

due to too high temperatures and too high mechanical stresses

✓ Reduce feed rate (fn)
✓ Reduce cutting speed (Vc)
✓ Increase coolant pressure


 

General hints

– Check concentricity when tool is clamped
– Check workpiece clamping and cleanliness of clamping surfaces
– Check tool clamping
– Correct choice of tools (pay attention to the ISO material groups when selecting tools)

 

Our experts will be happy to answer any further questions

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