1. Stainless steel parts have high cutting force and high cutting temperature. This type of material has high strength, tangential stress, and plastic deformation during cutting, resulting in high cutting force. In addition, the material has extremely poor thermal conductivity, causing an increase in cutting temperature, and the high temperature is often concentrated in the narrow area near the tool edge, thereby accelerating tool wear.
2. Severe work hardening occurs when machining stainless steel parts, as well as some high-temperature alloy stainless steel parts. When cutting, the tendency for work hardening is high, usually several times that of ordinary carbon steel. The tool is cut in the work hardening area, which shortens the tool life.
3. Easy to stick the knife, both stainless steel parts and martensitic stainless steel have the characteristics of strong and tough cutting chips and high cutting temperature during processing. When strong and tough chips flow through the front cutting surface, adhesive phenomena such as bonding and fusion welding will occur, affecting the surface roughness of the processed parts.
4. The wear of cutting tools for stainless steel parts processing is accelerated. The above materials generally contain high melting point elements, high plasticity, and high cutting temperature, which leads to accelerated tool wear and frequent grinding and tool replacement, thereby affecting production efficiency and increasing tool usage costs. Mainly to reduce the cutting line speed and feed. Using specialized cutting tools for processing stainless steel or high-temperature alloys, it is best to drill and tap with internal cooling.
