1. Carbon tool steel/high speed steel 50m/min;
2. Super hard tools 150m/min;
3. Covered tools 300m/min;
4. PVD porcelain gold 350m/min;
5. Cermet 300m/min;
6. Ceramic tools 1000m/min;
7. CBN 1000m/min;
8. PCD 1000m/min.
1) High-speed steel cutting tools are tougher and easier to cut than ordinary cutting tools. They are a new product. Used for cutting processing in mechanical manufacturing, most of the tools are machine-used and some are hand-used. Cemented carbide is an alloy material made from hard compounds of refractory metals and bonding metals through a powder metallurgy process.
2) For complex high-speed steel tools such as broaches, hobs, reamers, and milling cutters, carbon, nitrogen, sulfur, boron, oxygen and other elements are co-infiltrated under low temperature conditions to increase the durability of the tools by an average of 2 times. ~5 times. This is because after these elements penetrate into the surface of the cutting tool, the chemical composition of the surface of the cutting tool changes, which reduces friction and self-lubrication during the cutting process, thereby reducing the cutting force and cutting heat, and improving the durability of the tool. Reduced production costs. This process is simple and the working temperature is low. It is an effective measure to improve the durability of complex high-speed steel cutting tools.
3) Cemented carbide has a series of excellent properties such as high hardness, wear resistance, good strength and toughness, heat resistance, and corrosion resistance. In particular, its high hardness and wear resistance are basically maintained even at a temperature of 500°C. It remains unchanged and still has high hardness at 1000°C.
4) Carbide can also be used to make rock drilling tools, mining tools, drilling tools, measuring tools, wear-resistant parts, metal grinding tools, cylinder linings, precision bearings, nozzles, and hardware molds (such as wire drawing dies, bolt molds, and nut molds). , and various fastener molds, the excellent properties of cemented carbide have gradually replaced the previous steel molds).
5) Using high-speed steel to make cutting tools, in addition to its high hardness, high wear resistance and sufficient toughness, another important factor is its red hardness.
