1, Knife body
The cutter body is the main part of the end mill, which carries the weight of the entire tool and various forces during the cutting process. The tool body is usually made of high-strength and wear-resistant materials, such as high-speed steel, hard alloy, etc., to ensure that the tool has sufficient rigidity and stability during high-speed rotation and cutting processes. The shape and size of the tool body vary depending on the cutting requirements, usually including various types such as straight shank, tapered shank, end milling cutters, etc.
2, Cutting edge
The cutting edge is a crucial part of the end mill for cutting, which directly participates in the cutting process and is responsible for removing materials from the workpiece. The cutting edge is usually composed of multiple cutting teeth, each of which has certain geometric parameters such as rake angle, rake angle, and helix angle, in order to optimize cutting performance. The material of the cutting edge is usually the same as the tool body, but it requires higher hardness and wear resistance to withstand high temperature and high pressure during the cutting process.
3, Knife handle
The tool holder is a component that connects the tool body and the spindle of the machine tool. It is responsible for fixing the tool on the spindle and transmitting cutting force. The design of the tool holder should ensure a firm and reliable connection between the tool and the spindle, while reducing vibration and noise. The shape and size of tool holders vary depending on the machine model and cutting requirements. Common types of tool holders include straight holders, tapered holders, HSK tool holders, etc.
4, Spiral groove
Spiral groove is a structure used for chip removal and cooling on end mills. During the cutting process, chips and heat are constantly generated, and spiral grooves can effectively discharge chips from the outside of the tool, preventing chip blockage and heat accumulation. At the same time, spiral grooves can also allow coolant to better enter the cutting area, reduce cutting temperature, and improve the service life of the tool.
5, Knife tip
The cutting edge is the sharpest part of the end mill, which directly contacts the surface of the workpiece for cutting. The shape and size of the tool tip have a significant impact on cutting performance, as different types of tool tips such as sharp angles, rounded corners, and flat angles are suitable for different cutting needs. The material and manufacturing process of the tool tip have a decisive impact on the cutting life and machining quality of the tool.
6, Balance block
Balance block is a structure on an end mill used to adjust tool balance. Due to the centrifugal force generated by the tool during high-speed rotation, if not balanced, it can lead to vibration and noise, affecting the stability and accuracy of cutting. The balance block balances the centrifugal force of the tool by adjusting its position and weight, ensuring that the tool remains stable during rotation.
7, Coating
Coating is a special layer of material on the surface of end mills, used to improve the cutting performance and wear resistance of the tool. Coating materials usually have characteristics such as high hardness, good wear resistance, and good thermal stability, which can effectively reduce friction and wear during the cutting process and improve the service life of cutting tools. At the same time, the coating can also improve the friction coefficient between the tool and the workpiece, reduce cutting force, and improve machining efficiency.
