1. Burning of the cutting edge: when the cutting edge is worn or the feed is temporarily stopped, the cutting heat will produce burn marks on the cutting surface.
2. Tool passivation and stability: The increase in tool temperature increases the temperature of the cutting edge and increases the passivation speed of the tool, and the uneven temperature distribution of the tool body will cause the tool to lose its original stability.
3. Cutting that is prone to tearing: the flat blade has a large force area during cutting, which is easy to form cutting deformation, and there are relatively large signs of damage on the wood. The cutting surface cannot meet the requirements of being flat and smooth.
4. Difficult chip removal: The wood chips after cutting with the flat knife are large. In the central integrated system, the oversized wood chips cannot be discharged in real-time, resulting in the processed wood chips affecting the processing quality.
5. Reduction of alloy hardness: Under the operation of high-temperature welding flat knife blades, it is easy to reduce the alloy hardness and greatly reduce the service life of the tool.