The market development prospects of hard alloy cutting tools

The global rise in raw material prices and the increasing number of global competitors have made creating value for customers through high-quality products and excellent services the key to competition. As a result, tool manufacturers are actively seeking better solutions for their own development and the progress of the entire industry. According to the global distribution map of major tool materials, high-speed steel accounts for 35%, and cemented carbide accounts for 15%. Currently, the main tungsten-producing regions are the Alps, the Himalayas, and the Pacific Rim. China holds 60% of the world's tungsten reserves, and due to a shortage of raw materials in the international market, the price of APT has risen from 50pertontoaround250 per ton in recent years. This cost increase will ultimately be passed on to end-users of tools. Relevant research institutions worldwide are actively studying this situation, with the main research plan being to reduce the amount of tungsten used in tools as much as possible, primarily by using tungsten only in critical parts of the tool or designing special tool geometries. Statistics from the tool industry indicate that the proportion of cemented carbide will gradually increase in the future, while the proportion of high-speed steel products will gradually decrease. According to statistics from the Japan Tool Association, China has become the world's largest consumer of machine tools, followed by Japan, the United States, Italy, and others. Asia's economy is growing rapidly, and according to statistics from the Asian Development Bank, China's GDP growth was about 10% in 2007, while India's was about 8%. In this favorable economic environment, Japan's metal processing industry has also continued to grow at a high rate in recent years. In terms of tool output value, the production of cemented carbide tools has continued to increase in recent years, while high-speed steel tools have started to decline. The import and export volumes of cemented carbide have significantly increased, with the main export destinations being Asia, followed by Europe, and then North America and other regions. High-speed machining is widely recognized as a processing technology that improves production output and reduces manufacturing costs. The concept of dry machining or minimal lubrication is a major goal of the processing industry today to reduce environmental impact and production costs. For tool manufacturers and coating suppliers, productivity is of utmost importance. A 20% increase in cutting performance (cutting speed, cutting volume per unit time) can reduce manufacturing costs by 15%. Increasingly stringent processing requirements necessitate further development of tool materials and coatings, as well as improvements in processing conditions and tool design. The current challenges and areas for improvement mainly include: mechanical and structural properties: hardness, strength, wear resistance; thermal and chemical properties: heat resistance, insulation, catalysis; biological properties: adaptability, insecticidal properties; electronic and optical properties: reflectivity, transparency, etc. In recent years, (Ti, Al) coated cemented carbide tools have dominated the high-performance tool market. High demand in certain special applications has promoted the development of special coatings or coatings. "Nano" originates from the Greek word for "dwarf," with 1 nanometer equal to 10 to the negative 9th power meters. Nanotechnology refers to designing and producing devices and systems that can control the shape and size of material structures at the nanometer scale, within the range of 0.1 to 100 nm. The importance of nanotechnology stems mainly from two reasons: its surface-to-volume ratio, which gives it unique surface property advantages, and quantum effects.

The main forms of nanomaterials and nanostructured materials include: atomic clusters, nanoparticles, nanolayers, nanofibers; multilayer structures (with layer thicknesses in the nanometer range); nanostructured coatings or nanocoatings; nanostructured granular materials, etc. Nanoscale coatings: coatings with at least one dimension (such as grain size or individual layers) less than 100 nm. Nanocrystalline coatings have lower wear rates, higher hardness, and strength compared to traditional coarse-grained coatings. The tiny particle size changes the crack formation and material removal mechanisms of the coating, but the key challenge is maintaining particle size under thermal stress. Nanocomposite coatings contain at least two phases (crystalline and amorphous) or two crystalline states. The size, volume, and distribution of nanocrystalline grains, as well as the thickness of the amorphous phase, need to be optimized to find a balance between superhardness and strength. Thermal stability needs to be considered, along with non-mixing, decomposition inflection points, and segregation phenomena that occur during the coating process and subsequent stages. Nano-multilayer structures consist of alternating nanolayers of different materials, exhibiting anisotropic properties that enhance the performance of individual layers. By assisting each other through different alternating layers, the coating properties are improved. Optimistically, nanotechnology is expected to create a value of 3billioninthenext7to8years,andevenpessimistically,itcouldreach1 billion. SGS cemented carbide milling cutter.