In order to save metal materials and economic rationality, the cutting part and the tool body of the general tool can be made of different materials and combined by welding or mechanical clamping.
The above-mentioned factors must be considered in the reasonable selection of tool materials by woodworking tool manufacturers. Obviously, their problems are not isolated, but are related or even limited to each other. For example, the hardness and thermal rigidity of the tool material meet the requirements. However, poor resistance or large heat treatment deformation may not be used in woodworking tools. For this reason, when selecting the tool material in detail, you can focus on how to meet the main requirements, and the other aspects can not be ignored.
Machine tool woodworking tools, cutting tools used in wood-based panel processing, and band saw blades and circular saw blades are also widely made of alloy tool steel. This is due to the addition of alloy element wires w, Mn, Mo, Cr, V, Si, Ni, Co, etc. to the alloy tool steel, which affects the phase transition process of the steel, making the steel hardenable, wear-resistant, resistant, etc. Improved functionality.
Tungsten (w) primarily advances the hardness of the steel, improving the hardenability without decreasing the plasticity. Manganese (Mn) can advance the hardness and hardenability of the steel, eliminating sulfur in the steel, but reducing the steel's resistance; molybdenum (Mo) Plasticity, hardenability and hardness of advancing steel; chromium (Cr) can advance the hardenability of steel and wear resistance of high carbon steel; vanadium (V) can advance the hardness and plasticity of steel, improving hardenability, a few Vanadium can make the steel's structure finer and reduce the thermal sensitivity; silicon (Si) can advance the elasticity of the steel and improve the hardenability, but it reduces the plasticity of the steel. Corrosion resistance, but the hardness of steel is slightly reduced; Go can advance the wear resistance of steel, but it reduces the hardenability.
(1) YG-type hard alloys should be used for woodworking tools.
(2) There are coarse particles, fine particles and general particles in the YG type. When the composition is the same, the strength of the coarse particle alloy is high and the hardness and wear resistance are slightly reduced. Fine-grained alloys can advance hardness and increase wear resistance without significant drop in strength.
(3) Cemented carbide is relatively brittle. It must be reasonably selected for the wood processing according to its trademark, cutting material, cutting speed and other cutting conditions.
(4) After properly selecting the grade of cemented carbide, the type of cemented carbide product must be selected reasonably.
