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FAQ
What causes cemented carbide to crack?
Compared to metal materials, cemented carbide materials have a different thermal expansion coefficient. For this reason, cracks may occur in shrink/cooling-fitted products when the operating temperature is significantly higher (lower) than the designed value. When using cemented carbides with high hardness, problems such as cracking may occur by high impact, so the required fracture toughness value should also be carefully considered.
Q&A in the same category in this question
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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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What is the main component of cemented carbide?
The main component is tungsten carbide (WC), which becomes cemented carbide after bonding with metallic binders such as cobalt and nickel.
Additives such as chromium (Cr) are added to these alloys to create cemented carbides with various characteristics. -
What is the hardness of cemented carbides?
Generally, hardness can range from HRA88 to HRA92.
Higher hardness increases wearing resistance, but decreases impact resistance making it more prone to chipping.
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