Understanding the Hardness of Carbide End Mills
Carbide end mills are indispensable tools in machining, known for their durability and versatility. However, one crucial aspect that defines their performance is hardness. In this article, we will delve into the significance of hardness in carbide end mills and how it impacts various machining applications. What is Carbide? Carbide refers to a compound of carbon with another, usually metallic, element. In the context of end mills, tungsten carbide is a popular choice due to its exceptional hardness and heat resistance. The hardness of carbide is measured on the Rockwell C scale. Understanding Rockwell Hardness Scale The Rockwell C scale is commonly used to assess the hardness of materials, including carbide. The higher the Rockwell C number, the harder the material. Carbide end mills typically have hardness values ranging from 60 to 70 HRC (Rockwell C). Carbide End Mill Impact of Hardness on Machining The hardness of a carbide end mill directly influences its wear resistance and li