Ceratizit - полный каталог инструмента 2016 EN
Types of wear
A275
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High machining temperature and simultaneous mechanical stress can lead to
plastic deformation.
Plastic deformation
Reasons
Too high machining temperature, resulting in softening of
substrate
Damaged coatings
Chip groove too narrow
Remedies
Reduce cutting speed
Choose carbide grade with higher wear resistance
Provide cooling
Built-up edge occurs when the chip is not evacuated properly due to
insufficient cutting temperature.
Built-up edge
Reasons
Cutting speed too low
Rake angle too small
Wrong cutting material
Lack of cooling / lubrication
Remedies
Increase cutting speed
Increase rake angle
Apply TiN-coating
Use emulsion with higher concentration
Excessive stress of the insert causes breakage.
Insert breakage
Reasons
Excessive stress of cutting material
Lack of stability
Corner angle too small
Excessive notching
Remedies
Use tougher cutting material
Use protective edge chamfer
Increase honing of edge
Use more stable geometry
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