An end mill is a tool commonly used in metal cutting and it comes in many different designs and forms.

An end mill is a tool commonly used in metal cutting and it comes in many different designs and forms. Among them, the four-blade end mill is a common type and has many superior features. The following is a detailed introduction to the four-edge technology of end mills: Insert material: The four-edge inserts of end mills are usually made of high-speed steel, carbide or cubic boron nitride. These materials have excellent hardness and wear resistance, which can provide longer tool life in the cutting process. Edge geometry: The four-flute edge geometry of an end mill is one of its key features. The cutting edge has four cutting edges, usually a combination of straight or positive helical edges. This design can provide a more stable and smooth cutting process when cutting, reduce vibration and cutting force, and improve cutting efficiency at the same time. Flute number selection: Four-flute end mills can provide a variety of edge number options. The common ones are 2-blade, 3-blade and 4-blade. A higher flute count provides more cutting edges, which increases cutting efficiency. However, a higher flute count may also increase tool vibration and cutting forces. Therefore, when selecting the number of blades, it is necessary to determine the most suitable number of blades according to the specific processing requirements and materials. Insert Coating: The four-edge inserts of end mills are often surface-coated with coating technology to provide better cutting performance. Common coating materials include titanium carbide (TiC) and tungsten nitride (TiN). These coatings reduce cutting friction and heat build-up, improving tool life and machining quality. Application fields: Four-blade end mills are suitable for cutting various metal materials, such as steel, cast iron, stainless steel, aluminum alloy, etc. Its large number of flutes and stable cutting performance make it excellent in high-efficiency, precise and fine machining. To sum up, the four-blade end mill has excellent wear resistance, cutting stability and cutting efficiency. The optimized design of its blade material selection, cutting edge geometry, blade number selection and coating technology makes it suitable for high-efficiency, precise and fine processing of various metal materials. Whether in large-scale industrial production or in personal DIY projects, the four-blade end mill is an indispensable tool.