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FAQ
What are the weaknesses of cemented carbides?
Compared to general iron alloys, cemented carbide has lower toughness, which may cause chipping or peeling of the cutting edge.
In addition, as the relative density is about twice that of iron, the heavier weight of cemented carbide may be a disadvantage.
Q&A in the same category in this question
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What is the difference between cemented carbide and cermet?
Both cemented carbide and cermet are composite materials made by mixing and sintering carbide or nitride powders with a metallic binder.
However, whereas cemented carbides are made of tungsten carbide (WC), the main component, bonded mainly with cobalt (Co) and nickel (Ni),
Cermet is made by bonding titanium compounds such as titanium carbide (TiC) and titanium carbide nitride (TiCN) with nickel (Ni) and cobalt (Co).
In other words, the difference between cemented carbide and cermet is the main component. -
What is the difference between cemented carbide and ceramics?
The hardness of ceramics approaches that of diamond, the hardest mineral on earth. If the hardness of diamond is 10, ceramics exhibit a hardness of 9 or higher, which is harder than tungsten and other hard metals. The difference in composition also results in a heavier weight in the case of cemented carbides. However, cemented carbides can be made with various characteristics depending on tungsten carbide (WC) particle size, the amount of bonding material, and additives, so it is possible to select the most suitable grade for the application from a wide range of available grades.
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What kind of cemented carbide is used as cutting tools?
The material of cemented carbide to be selected depends on the workpiece and its thickness, etc. In general, for use as a cutting tool, ultrafine grain cemented carbide, which consists of ultrafine tungsten carbide (WC) particles, is often selected to increase cutting ability and to prevent chipping.
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