Difficulties in stainless steel processing

In stainless steel processing, because of the high strength of stainless steel material, the cutting force is large because of the large tangential stress and plastic deformation. In addition, the extremely poor thermal conductivity of the material causes the cutting temperature to rise, and the high temperature is often concentrated in the narrow area near the cutting edge, thus speeding up the tool wear. Stainless steel plate processing and some superalloy stainless steel are austenitic structure, When cutting, the tendency of work hardening is large, which is usually several times of that of ordinary carbon steel. When cutting in the work hardening area, the tool life is shortened. Both austenitic stainless steel and martensitic stainless steel have the characteristics of strong and tough chips and high cutting temperature. When the strong and tough chips flow through the rake face, there will be adhesion, fusion and welding, Stainless steel generally contains high melting point elements, high plasticity and high cutting temperature, which makes tool wear faster and tool grinding and changing frequently, thus affecting the production efficiency and increasing the cost of tool use. All these are the difficulties of stainless steel processing