With the development of modern machinery processing industry, the requirements for the quality and precision of cutting have been continuously improved, and the requirements for improving production efficiency, reducing production costs, and having high-efficiency automatic cutting functions are also increasing. As a part of the cutting machine industry, the products we provide will be the most modern and technological. Welcome everyone to discuss cooperation. Details:/
The tool materials commonly used in tool grinding include high-speed steel (HSS), powder metallurgy high-speed steel (PM-HSS), cemented carbide (HM), and superhard materials such as PCD and CBN. High-speed steel tools have good sharpness and toughness. Carbide tools have high hardness but poor toughness. Cemented carbide tools have a significantly higher density than high-speed steel tools. These two materials are the main materials for drills, reamers, cutters and taps. The performance of powder metallurgy high-speed steel is between the above two materials, mainly used for manufacturing rough milling cutters and taps.
CNC cutters High-speed steel cutters are less sensitive to impact because of their toughness. However, hard alloy tools have high hardness and brittleness, they are very sensitive to collisions, and they are easy to rake. Therefore, in the grinding process, the carbide tools must be handled and placed very carefully to prevent the tool from colliding or the tool from dropping.
The development of CNC cutter cutting tools has a direct impact on improving productivity and processing quality. Materials, structures and geometric shapes are the three factors that determine the cutting performance of the cutter. The performance of the cutter material plays a key role. The International Association of Production Engineers (CIRP) pointed out in a research report that “accepted cutting tool speeds have almost doubled every 10 years due to improvements in tool materials.†Tool materials have been high-speed steel and carbide since the early 20th century. With the development of high-performance ceramics, superhard materials, etc., the heat-resistant temperature has been increased from 500 to 600°C to more than 1200°C. The cutting speed has been allowed to exceed 1000m/min, and the machining productivity has been improved in less than 100 years. More than 100 times. Therefore, it can be said that the development of tool materials actually reflects the history of cutting technology.
Although in recent years, a variety of new types of CNC cutting machine tool materials emerge in endlessly, but in the future for a long period of time, carbide cutting tools will still be widely used in cutting, so we need to research and develop new material preparation technology, and further improve and improve hard Alloy cutting tool material cutting performance. In order to further improve the overall cutting performance of the carbide cutting tool materials, the current research hotspots mainly include the following aspects: 1. Refinement of grain 2. Coating of cemented carbide 3. Surface, overall heat treatment and cycle heat treatment 4. Add Rare Metal 5. Add rare earth elements, application of whisker toughening, nano-powder composite strengthening technology comprehensively improve the hardness, toughness and other comprehensive properties of carbide cutting tool materials, is an important direction for the future development of carbide tool materials.
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