1. Excessive cutting force: the tool is subjected to excessive force during cutting, which leads to serious wear and deformation, and finally leads to curling. The solution is to reduce cutting force, which can start with selecting cutting parameters, materials and reducing machining times.
2. Inappropriate tool material: the hardness, toughness and strength of the tool material do not conform to the specific processing application, which will also lead to tool curling. At this time, it is necessary to replace the appropriate tool material.
3, cutting temperature is too high: in the process of cutting, the temperature of the cutting part may be too high, resulting in the curling of the cutting edge of the tool. The solution is to use the correct cutting method, materials and coolant.