In cutting technology, the cutting process is a critical process for separating the workpiece without chip formation. Tools such as knives and shears are the main components of this process. Ceramic materials are perfect for this application due to their exceptional wear resistance and their resistance to abrasive, thermal and chemical stresses.
Advantages of technical ceramics in cutting technology
The use of technical ceramics in cutting tools offers significant advantages. Ceramic knives are characterised by high edge retention, which means that the cutting force remains stable over an accumulated cutting length. This is particularly important to ensure consistent and precise cutting performance. In addition, ceramic materials offer excellent cutting ability with low cutting force, which minimises cutting pressure and therefore reduces wear on the tool.
The importance of cutting geometry
The result of the cutting process is a decisive quality criterion for the workpiece and is largely determined by the geometry of the cutting edge. The cutting edge must be robust enough to prevent chipping and at the same time remain sharp in order to minimise the cutting pressure. Excessive cutting force can damage both the material being cut and the tool, which is why it is important to select the ideal geometry.
Influence of the cutting edge geometry and the material
The cutting ability of a blade is determined by the geometry of the cutting edge, in particular by the cutting edge radius and the cutting edge surface. The latter influences the friction due to the roughness of the surface and therefore also the cutting force. In addition, the properties of the material, such as hardness and strength, have a significant influence on the cutting ability, as these determine the contact stress during the cutting process.
Conclusion: Technical ceramics in cutting technology
Technical ceramics offer an ideal solution for cutting tools as they offer high wear resistance and temperature resistance. It contributes to improved cutting ability and longer tool life, resulting in greater precision and efficiency in cutting technology. With the right geometric adjustments and the right material, ceramic cutting tools can fulfil the industry's requirements with flying colours.