Situation:

• High tribological load on circular knives, resulting in high wear.
• Wear of knives caused by different mechanisms, depending on cutting material, dimensions, cutting parameters and tool material.
• Reduction of cutting quality (due to wear).
• High frequent knife change / regrinding necessary.
• Complicated readjustment of the knife holder and thus the whole cutting system.

Solution:

• Evaluation procedure for the wear behaviour of circular knives
• Determination of relevant wear mechanisms
• Optimisation of cryogenic treatment of the knives integrated in the heat treatment process
• Optimisation of cutting edge geometry according to the determined wear behaviour

Operational benefit:

• Increase of service life / life time of the circular knives
• Increase of cutting quality

Reduction of maintenance intervals and therefore lower operating and maintenance costs

• circular knives
• Cutting edge geometry
• Cutting technique
• Deep cryogenic treatment
• Edge quality
• Heat treatment process
• Wear