How to keep the sharpness of alloy milling cutter thick leather knife when processing high-strength materials?
Publish Time: 2025-05-06
In modern manufacturing, with the widespread application of high-strength materials such as hardened steel, stainless steel, titanium alloy and high-temperature alloy, higher requirements are placed on the performance of cutting tools. The alloy milling cutter thick leather knife has shown significant advantages in processing these difficult-to-cut materials due to its excellent hardness, wear resistance and thermal stability. However, to keep the sharpness of the tool during long-term high-load cutting, it is still necessary to carry out systematic optimization in many aspects such as material selection, structural design, coating technology and use environment.
First of all, high-quality material foundation is the prerequisite for ensuring sharpness. Alloy milling cutter thick leather knife usually uses high-performance cemented carbide as the base material. This type of material is composed of tungsten carbide particles and cobalt binder, with extremely high hardness and good compressive strength. In addition, some high-end products will also add rare elements such as tantalum carbide or niobium carbide to enhance the stability and resistance to plastic deformation of the tool at high temperature. Through scientific proportioning and fine sintering process, it is ensured that the tool can maintain a sharp cutting edge while withstanding strong friction and impact.
Secondly, advanced geometric structure design helps to reduce cutting resistance and extend tool life. Reasonable rake angle, back angle, blade inclination angle and edge treatment directly affect the cutting performance and chip removal efficiency of the tool. For example, appropriately increasing the positive rake angle can reduce cutting force and reduce cutting heat generation; while optimizing the back angle can reduce the friction between the tool and the workpiece and avoid premature passivation of the edge. In addition, many thick leather knives use micro-chamfered or polished edge designs, which not only enhances the toughness of the edge, but also effectively prevents the formation of chipping and built-up edge, thereby maintaining a long-term sharp state.
Efficient coating technology is a key means to improve the wear resistance and self-lubrication of tools. Currently commonly used coatings include TiN (titanium nitride), TiCN (titanium carbonitride), TiAlN (aluminum titanium nitrogen) and multi-layer composite coatings. These coatings can not only greatly improve the surface hardness of the tool, but also form an aluminum oxide protective film at high temperatures, which plays a role in heat insulation and oxidation resistance. At the same time, some low friction coefficient coatings (such as DLC diamond-like coatings) can also reduce the adhesion between chips and tool surfaces, improve cutting conditions, and enable the tool to maintain good cutting performance during continuous cutting.
A reasonable cooling and lubrication system is essential to maintaining tool sharpness. High-strength materials will generate a lot of heat during the cutting process. If it cannot be discharged in time, it will cause the tool to soften or even undergo phase change, seriously affecting its service life and sharpness. Therefore, high-pressure internal cooling or minimal lubrication (MQL) technology is widely used in modern processing to accurately deliver coolant to the cutting area, quickly remove heat and clean chips. This can not only effectively control the cutting temperature, but also reduce tool wear and further extend the time it stays sharp.
Finally, intelligent monitoring and reasonable usage habits are also factors that cannot be ignored. Through real-time monitoring of integrated sensors and CNC systems, operators can grasp the working status of the tool, detect wear trends in advance, and replace or sharpen the tool in time to avoid affecting the processing quality due to excessive wear. In addition, selecting appropriate cutting parameters (such as speed and feed rate) according to different material characteristics can also effectively reduce the burden on the tool, allowing it to operate in the best condition, thereby maintaining sharpness for a longer time.
The reason why the alloy milling cutter thick leather knife can maintain excellent sharpness in high-strength material processing is inseparable from the coordinated optimization of materials, structures, coatings, cooling systems and intelligent management. It is the integration of these advanced technologies that enables the tool to still show stable cutting performance in harsh cutting environments, providing a strong processing guarantee for modern manufacturing.
