Cemented carbide cutter has a series of excellent properties, such as high hardness, wear resistance, good strength and toughness, heat resistance, corrosion resistance, etc., especially its high hardness and wear resistance, which are basically unchanged even at 500 degrees, and still have high hardness at 1000 degrees. Hard alloy is widely used as cutting tool materials, such as turning tools, milling cutters, planers, drills, boring cutters, etc. it is used to cut cast iron, non-ferrous metals, plastics, chemical fiber, graphite, glass, stone and ordinary steel, as well as heat-resistant steel, stainless steel, high manganese steel, tool steel and other difficult to process materials.

Some of the factors that affect the characteristics and application of cemented carbide tools include:

(1) challenging workpiece materials. Including alternative metal materials and hard to process alloy materials. Some of these materials are less than a quarter as workable as steel, and some can cost hundreds of dollars per pound.

(2) increasingly complex workpiece geometry. For example, thin-walled workpieces and aviation parts with complex shapes.

(3) large size workpiece. In particular, the demand for turbines and various heavy machinery parts is increasing. The high cost of each piece of these workpieces puts forward high requirements for the machining of tungstencarbidecuttingtools.

(4) increasingly special quality and performance requirements. For example, the requirements for the surface fatigue strength of the machined parts.

Analysis of the factors that determine the quality of cemented carbide tools

Hardness and toughness: carbide tools have unique advantages in both hardness and toughness. Tungsten carbide (WC) has high hardness (more than corundum or alumina), and its hardness seldom decreases when the working temperature increases. However, it lacks enough toughness, which is essential for cutting tool performance. In order to make use of the high hardness of WC and improve its toughness, people use metal bond to combine WC together, so that this material not only has the hardness far higher than that of high-speed steel, but also can bear the cutting force in most cutting processes. In addition, it can withstand the cutting high temperature produced by high-speed machining.

Therefore, the adaptability of cemented carbide tool performance to specific machining depends largely on the initial milling process.

Related link:

http://www.wococarbide.com/Library/libraryinfo/id/847

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