1. Conceptual aspects
Cemented carbide is an alloy material made of a combination of refractory metal carbide such as tungsten carbide (WC) powder and bonding metal such as cobalt powder, named Tungsten Carbide/Cemented Carbide in English, whose high temperature carbide content is higher than that of high speed steel.
High speed steel is composed of a large number of tungsten, molybdenum, chromium, cobalt, vanadium and other elements of high-carbon high-alloy steel, mainly composed of metal carbide (such as tungsten carbide, molybdenum carbide or vanadium carbide) and steel matrix, the carbon content of 0.7%-1.65%, the total amount of alloying elements up to 10%-25%, the English name of High Speed Steels (HSS).
2, the performance
Both have large hardness, high strength, good toughness, red-hardness, wear resistance, heat resistance and process performance, etc., and all these characteristics will be different because of the different grades. Generally speaking, the hardness, red-hardness, wear resistance and heat resistance of cemented carbide are better than those of HSS.
3, the production process
The production process of cemented carbide mainly includes powder metallurgy process, injection molding technology or 3D printing process.
The production methods of high speed steel include traditional casting technology, electroslag remelting technology, powder metallurgy technology and injection molding technology.
4, applications
Although both can make tools, hot work molds and cold work molds, they have different properties. Ordinary carbide tools have 4 to 7 times higher cutting speed and 5 to 80 times higher life than ordinary HSS tools. In terms of tooling, the life of carbide tooling is 20 to 150 times higher than that of HSS tooling, for example, the life of hot heading and extrusion die made of 3Cr2W8V steel is 0.5 million times, and the life of hot heading and extrusion die made of YG20 carbide is 150,000 times.
Post time: May-11-2023
