What are the characteristics of stainless steel in grinding
Sep 09, 2022
Stainless steel material processing difficulties mainly have the following aspects:
1. Large cutting force and high cutting temperature
This type of material has high strength, large tangential stress and plastic deformation when cutting, so the cutting force is large. In addition, the thermal conductivity of the material is very poor, causing the cutting temperature to rise, and the high temperature is often concentrated in the narrow area near the edge of the tool, which speeds up the wear of the tool.
2. Serious work hardening
Austenitic stainless steel and some high alloy stainless steel are austenitic structure, cutting work hardening tendency, is usually several times the common carbon steel, cutting tool in the work hardening area, shorten tool life.
3. Easy to stick knife
Both austenitic stainless steel and martensitic stainless steel have the characteristics of chip toughness and high cutting temperature during processing. When the strong chip flows through the front knife surface, will produce bonding, fusion welding and other sticky knife phenomenon, affect the surface roughness of machining parts.
4. Tool wear is accelerated
The materials generally contain high melting point elements, plasticity, high cutting temperature, speed up tool wear, tool grinding, tool change frequently, thus affecting the production efficiency, improve the cost of tool use.
Mainly to reduce the cutting line speed, feed. The use of special processing stainless steel or high temperature alloy tool, drilling tapping is the best inside cold
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