lõikekiirusi

Lõikekiirusi refers to the relative speed between a cutting tool and the workpiece during a machining operation. This speed is a critical parameter that significantly influences the efficiency, surface finish, and tool life of the cutting process. In turning, for example, lõikekiirusi is the tangential velocity of the workpiece's surface at the point of cut. In milling, it is the tangential velocity of the cutting edge of the milling cutter.

The optimal lõikekiirusi depends on several factors, including the material being cut, the type of cutting tool, the cutting fluid used, and the desired outcome. Generally, higher lõikekiirusi can lead to faster material removal rates, reducing machining time. However, excessively high speeds can generate excessive heat, leading to premature tool wear, reduced accuracy, and a poor surface finish. Conversely, too low a lõikekiirusi can result in inefficient material removal and increased machining time.

Factors that influence the selection of lõikekiirusi include the hardness and toughness of the workpiece material, the cutting edge geometry and material of the tool (e.g., high-speed steel, carbide, ceramic), and the presence or absence of a coolant or lubricant. Machine tool capabilities, such as spindle speed range and power, also play a role. Manufacturers of cutting tools and machine tools often provide recommended lõikekiirusi ranges for specific applications to guide users in achieving optimal machining results. Proper selection and control of lõikekiirusi are fundamental to successful and economical machining processes.