Carbide has evolved into the most common tool material to date

Carbide is a very high hardness of the material, mainly used in metal cutting cutting tool has been widely used. In the mechanical processing industry, the mentioned alloy or tungsten steel is usually referred to as such cemented carbide materials. The use of carbide cutting tools can gain many advantages.
Carbide Tool Industrialization applied to metal cutting began in the 1930s. Since then, the cement has evolved into the most common tool material to date. The relatively small size of the tool is often made of solid carbide; non-solid carbide cutting tool only in the cutting area using carbide. Early non-monolithic carbide cutting tools tend to weld carbide to the blade body. By the 1940s, carbide tool manufacturers had begun to produce tools that clamped the switchable blade and benefited. Compared to earlier welding tools, this brain hole in the technological innovation and the use of mechanical clamping structure makes the higher strength of the tool; now has been recognized as a landmark invention, not only in the field of tool manufacturing , But also for the entire metal processing industry to bring advanced and efficient processing.
This ambitious progress for the manufacturing sector to open a broad space for improvement, and immediately improve the carrying capacity of the tool, making the tool has the ability to quickly remove metal. In addition to the blade due to wear failure or failure to replace the blade when the blade becomes more simple and cost-effective to make the cost of protection, but also makes it possible to manufacture cutting modules and knife body. The replacement of the blade often takes into account its shape, the rapid replacement of the failure of the cutting edge in several ways, in addition to the center line along the blade transposition, but also reverse the blade on the positive and negative situation. The term "indexable blade", which is now widely recognized by the industry, has also been called a disposable blade, a replaceable blade, a replaceable blade.

BTCarbide Accelerates the development of a new generation of lightweight high strength carbide rod products

In the face of rising labor costs, product homogeneity serious, intense market competition, how can enterprises "break through"
In recent years, BTCarbide rely on scientific and technological personnel, aimed at industrial problems, identify development orientation, promote product innovation, market innovation, out of the low level of vicious competition "vicious circle", become the influential internal cold bit material professional R & D and manufacturers. Last year, the company achieved sales income of more than 7,000 million, of which 40% of new products accounted for.
BTCarbide is a high-tech enterprise, for how to take the path of development, the company has a clear idea: for China's carbide tool material development and application of the actual situation around the existing carbide products to upgrade the technology, Speed ​​up the development of a new generation of independent intellectual property rights of low-cost, high-efficiency lightweight high-strength carbide bar products, striving for cold-rolled helical alloy materials, light alloy material leader.
Lack of scientific and technological personnel, is the biggest bottleneck restricting the development of enterprises. How to crack? BTCarbide standing on the forefront of industrial development, the company in accelerating technological transformation, the introduction of international advanced equipment on the basis of targeting high-end market, adjust the direction of product development, production and research cooperation innovation path, developed a number of high-tech, Value-added, high market competitiveness of new products, so that enterprises for several years to maintain steady growth.
Powder metallurgy preparation of light high-strength cemented carbide key technology research results, which is BTCarbide scientific and technological innovation of a manifestation.
The rapid development of metal processing industry requires high cutting speed, large infeed, high precision and long life characteristics, while the traditional carbide cutting tools, although with a certain hardness and wear resistance, but the toughness and red hardness is not Good, can not meet the requirements.
In the research and development, the company's research team, for the current long-term high-speed dry cutting of stainless steel and other materials in the process, the red hardness of the tool and the toughness of the situation, to adjust the powder composition and sintering process and other measures, independent research and development of a powder metallurgy Lightweight high-strength carbide rods to improve the current stainless steel dry cutting process of the tool material during the service cycle.
Lightweight and high strength carbide rods can effectively reduce the temperature of the tool during machining, remove the mechanical debris from the process, improve the surface quality of the processing, improve the processing efficiency and prolong the service life of the tool. Foreign enterprises from the equipment to the process are strictly confidential, the domestic market demand for the product is huge, light high-strength carbide preparation technology is China's powder metallurgy industry desire to break through the problem.
The characteristics and innovations of this project are to propose a new type of light high strength cemented carbide raw material ratio and mature sintering process, the preparation of light high strength carbide alloy bar processing equipment and processing methods, the development of light High-strength carbide rods, in line with carbide drill, cutter, alloy steel, titanium and other processing requirements, to foreign advanced level and fill the gaps.
Carbide bar of the internal spiral cooling hole flexible processing technology, which is another embodiment of BTCarbide innovative results. The research on the domestic cold-type spiral hole cemented carbide bar started earlier, and the domestic demand mainly relied on the import. Therefore, we focus on scientific research, speed up the development of independent intellectual property rights with the core products.
BTCarbide research team analysis and research at home and abroad are widely used in a variety of injection molding process characteristics, through a comprehensive comparison, put forward powder injection molding and powder sintering technology processing carbide alloy bar technology, at the same time, through the injection mold powder Mechanical theory, the formation mechanism of the internal cooling screw hole and other basic research, as well as mold design, mold materials, heat treatment and mold manufacturing powder metallurgy mold design, successfully solved a series of technical problems.
The new technology, BTCarbide production of internal spiral cooling hole carbide rods, not only high precision, low cost, and continuous production efficiency, but also can quickly switch to adjust the pitch, variable angle, pitch and other parameters, all the technology Indicators similar to foreign similar products, to fill the gaps in the domestic. At present, this product has been put on the market, and received a high degree of market recognition.

Preparation of Carbide Ball End Mills by 3DP Printing Technology

Tool fixture is an important component of metal cutting machine tools, especially the geometry of the tool slot, cooling methods are greatly affected the product of the machining efficiency and processing quality. In recent years, 3D printing with unique technical characteristics, in the field of fixture applications can be said to be moving in the direction of depth.
3D printing technology in the application of the tool is a large faction is 3DP adhesive jet printing technology, through the heat treatment after the hardness of the tool to meet the application requirements. Another large faction is the SLM metal 3D printing technology, through the powder bed selective laser melting technology to create metal cutting tools or a special tool within the complex cooling channel. These two technologies are increasingly attracted the attention of the tool industry. In this issue, 3D Science Valley and Guyou jointly to enjoy the Harbin University of Technology through 3DP printing technology to prepare micro-texture carbide ball milling cutter technology.
When the titanium alloy is machined, the friction coefficient between the titanium alloy and the tool is large, the friction speed of the titanium alloy chip along the rake face is higher, and the friction caused by the abrupt friction makes the tool wear and the surface quality is poor. Factors, the use of titanium alloy parts and components of the performance depends mainly on the quality of parts processing, such problems have become the most concerned about the aerospace researchers one of the issues.
In recent years, bionic tribology has proposed a concept of surface texture. SurfaceTexturing, also known as surface micro-modeling, is in the friction surface processing with a certain size and arrangement of the pit or tiny groove lattice. High-performance surface texture can achieve a good anti-friction, anti-adhesion and improve wear resistance, which to the tool surface surface friction to bring a new research direction, but also provides a theoretical basis. At present, few scholars at home and abroad have carried out the application of surface texture on cutting tools. Although the research is in the initial stage, the research results show that the surface micro-weaving tool has the effect of improving the cutting performance of the tool.
The research on the application of micro-texture on the surface of the tool and the influence on the tool performance is still in the initial stage, mostly on the turning insert and the indexable face milling cutter. The cutting material is mainly 45 # steel and aluminum alloy. The micro-texture is applied to the study of titanium milling of ball-end milling and the research on micro-texture optimization. Therefore, it changes the current inefficient machining mode of titanium alloy, and makes high-quality and high-quality cutting of titanium alloy for micro-texture tool Helpful exploration.
The existing surface micro-texture preparation methods are: laser surface texture technology (LST), surface laser shot peening (LPT), LIGA technology, reactive ion etching (RIE), engraving technology, electrolyte processing, EDM , Electrical processing and so on. These techniques are based on the surface of the substrate directly to the micro-area processing to achieve weaving, but most of the existing texturing technology or "cutting material" manufacturing technology, mainly in the etching, embossing, etc. in the form of a single concave Pit, or groove, in which the laser surface texture technology is widely used in the surface microstructure of the surface texture of the laser surface texture technology with its manufacturing processing speed, wide application material, high precision, no pollution to the environment and excellent shape and size control ability field. However, the use of this method in the tool surface processing micro-texture is easy in the micro-texture around the heat generated area and micro-cracks, will affect the tool in the processing of the strength and service life.
With the plastic material 3D printing technology is relatively mature, metal 3D printing technology highlights the great potential for development, as the rapid development of today's important areas of development and research hot spots. Most of the metal 3D printing technology uses laser as the input heat source, by melting or sintering metal powder layer by layer stacking parts. But for the hard alloy of the two kinds of different nature of the composite material, which WC is ceramic, high melting point; and Co is metal, low melting point. Although the laser reaches the temperature enough to melt the WC, but to WC melting temperature, Co will evaporate, after solidification of the alloy structure can not meet the requirements as a carbide.
Harbin University of Technology through the 3DP adhesive injection 3D printing technology to solve the existing 3D printing technology can not produce carbide cutting tools and the existing technology in the preparation of micro-texture on the tool there are some problems, and then put forward a 3D print Preparation of Micro - Texture Carbide Ball - end Mills. Specifically, the following steps are included:
- Preparation of YG8 Carbide Ball Milling Cutter Powder Material: YG8 Carbide Ball Milling Cutter Powder Ingredients The main ingredient ratio is 8% cobalt powder and 92% tungsten carbide powder;
- Preparation of organic binder: organic binder of the main components include paraffin and polyethylene glycol, polyethylene, polypropylene, polyvinyl alcohol in one;
- Set the knife-and-chip contact surface of the ball-end milling cutter: The tool-chip contact area of ​​the rake face during the machining of the ball-end milling cutter under the given cutting conditions is calculated and experimentally and on the rake face position;
- Establishment of a three-dimensional model of a micro-textured carbide ball-end mill: The knife-chip contact area model established in the previous step was then implanted in the area of ​​the area with a certain microstructure size, depth and spacing Texture model, which can achieve the best anti-friction effect;
- print the micro-texture tool entity through a three-dimensional model;
- post-treatment process: First, the micro-texture carbide cutting tools into the hydrogen environment for thermal degreasing treatment, remove the adhesive; Finally, the vacuum sintering process of cemented carbide micro-texture ball milling cutter body sintering Processing, sintering temperature of 1400 ° ~ 1420 ° or so, the sintering process duration of 3 to 6 hours; the final micro-texture carbide ball milling cutter to achieve 100% density and sufficient strength.
3DP is a kind of adhesive jet printing technology, Harbin University of Technology through 3DP technology and post-processing technology prepared micro-texture carbide ball milling cutter can make the tool to reach 100% density, and after the post-treatment of tight Degree and strength can be consistent with the traditional processing methods to get the carbide cutter.
Based on the complex shape of a carbide ball cutter, it is cumbersome to use conventional processing methods, and it can also cause material waste. The micro-texture carbide ball milling cutter prepared by the preparation method of Harbin University of Science and Technology can obtain the higher dimensional accuracy, and also establish a unique knife-chip contact model on the rake face, which can realize the contact area Prints a tiny microstructure array with diameters from 50 microns to 200 microns, and the dimensional accuracy is very high.
Compared with the current method of preparing micro-texture on the carbide ball cutter, Harbin University of Science and Technology, in addition to being able to produce complex shape ball-end milling cutter, can also be used in the ball nose cutter The contact area produces a more accurate pits and micro-texture array, which can reduce the contact area of ​​the knife-chip in the cutting process, reduce the friction coefficient of the knife-chip contact area and reduce the wear of the tool.
Harbin University of Technology has also overcome some of the shortcomings of the use of traditional technology in the preparation of micro-texture on a carbide ball cutter. For example, the use of laser technology in the carbide ball milling cutter prepared on the micro-texture size accuracy is very low; carbide surface in the high-temperature melting process may also react with oxygen in the air, resulting in changes in the composition of the tool; In the micro-texture around the heat will produce a zone, may produce micro-cracks and so will affect the tool life. Therefore, Harbin University of Technology in improving the strength of carbide ball milling cutter structure at the same time also further improve the micro-texture tool anti-friction and anti-wear properties, thereby enhancing its service life.
According to the 3D Science Valley market research, the use of 3DP adhesive jet three-dimensional printing technology to produce carbide cutting tools has been abroad. Researchers at the Fraunhofer Institute in Germany have succeeded in producing cemented carbide tools using 3DP adhesive jetting three-dimensional printing technology. Through 3DP print carbide powder, the Institute can easily create complex designs. In this process, the ceramic particles of the ceramic hard material, including the tungsten carbide particles, are printed and bonded by layers of a binder material containing cobalt, nickel or iron. This adhesive material is not only an adhesive between the powder layers, but also allows the product to have good mechanical properties and can produce completely dense parts, and even can selectively adjust the bending strength, toughness and hardness. Subsequent treatments include sintering treatments, resulting in compactness of cemented carbide molds consistent with conventional processing methods.
Not only the 3DP technology used by Harbin Polytechnic University and the Fraunhofer Institute, Gaumet also used SLM metal 3D printing technology and machining technology to manufacture milling cutters. The cutter body with the dense flute is a customized non-standard product made by metal 3D printing technology, and the shank part is the standard product produced by the mechanical processing technology.
In addition, the company also created the QTD series of complex spiral cooling channels through 3D printing technology, which improves the heat transfer capacity of the coolant to the top of the drill. Mappa's drill has a longer life and faster operation than the previous drill.
Whether it is 3DP technology for the manufacture of carbide cutting tools or SLM technology for the manufacture of metal bits and handles, 3D printing technology in the field of manufacturing tool occupies an increasingly important position.

CBN tool and PCD tool widely used to show a good trend

Casting process, as the name suggests, in terms of popular is the high temperature melting of molten metal poured into the mold, the cooling and solidification after the desired shape and performance of the parts of the production process. Casting history in China has existed for thousands of years, from the Bronze Age to the industrial revolution, the machinery industry are inseparable from casting, casting process represents a national machinery industry level, machinery industry to aircraft, high-speed train parts, , Construction machinery, electrical equipment and other equipment manufacturing industry, small pots and pans are used casting process, for example, we see the countryside to cast aluminum pot, aluminum basin and so on.
Casting the workpiece from the material can be divided into two categories: one is ferrous metal castings such as gray cast iron, ductile iron, alloy cast iron, and steel castings and so on. One is non-ferrous metal castings such as cast copper alloy, cast aluminum alloy; with the development of the machinery industry, a variety of casting alloy performance has been greatly improved, and casting parts of the machining more and more high-speed cutting and dry The most rapid development of cutting, high speed cutting and dry cutting tools is cubic boron nitride tool (CBN tool) and diamond tool (PCD tool). As an industrial "tooth", CBN and PCD tools provide the basis for casting difficult materials and batch high speed cutting.
CBN tool and PCD tool development status
At present, foreign advanced countries have been large-scale investment in the use of CBN tools and PCD tool, which with foreign high-speed CNC machine tools in the past 20 years is inseparable from the rapid development, especially in the automotive industry, foreign CBN tools and PCD tool has accounted for To more than 30% of the tool market share. CBN tool and PCD tool with its high hardness, high wear resistance, good thermal conductivity and low coefficient of friction and other excellent performance, especially for the automotive industry such as CNC automatic processing lines on the application.
Compared with foreign countries, the current domestic CBN tool and PCD tool is not well developed, it is due to the domestic tool manufacturing equipment and manufacturing technology, but the customs, restricting the use and promotion of these tools; foreign CBN tool and PCD tool Because of its expensive price reasons, so many users discouraged; enterprise technical staff habits and awareness of the new technology is not enough, the CBN tool and PCD tool tool performance, processing and use of technology did not fully understand and master.
However, from the successful experience of foreign countries, with CBN tools and PCD tools in the field of machining high-speed, high precision, to car grinding, green manufacturing and other advantages, will be like high-speed CNC machine tools in China's development process, Is the trend, unstoppable.
Application Advantages of CBN Tool and PCD Tool in Automobile Industry
In recent years, with the continuous development of China's automobile industry, the automotive industry has become an important pillar of the national economy, CBN tool and PCD tool with high-speed CNC machine tools to use, can shorten the non-state-of-the- Processing time to more than half, but also reduce the non-processing time, increase machine life, improve processing efficiency.
At present, foreign CBN tool and PCD tool in the cylinder block, cylinder head, axle, gearbox, bearing cover and other parts processing applications. CBN tool for the shaft, gear and wear ring, the use of turning very convenient to the car on behalf of the mill, but also a very good place to do abroad.
CBN tool and PCD tool development trend
It is expected that during the 12th Five-Year Plan period, China's tool market share will reach almost 360 million, according to the current super-hard material market share accounted for more than 10% count, within five years, CBN tool and PCD tool market share will reach nearly 40 Million, which for all superhard materials tool enterprises are a huge cake to be developed.
CBN tool and PCD tool on behalf of the tool material development direction, is an ideal cutting tool material, this material is not renewable, and gradually lack of carbide cutting tool is an inevitable trend. I believe that through the domestic enterprises and scientific research institutions of unremitting efforts, China's superhard materials tool business will have a better tomorrow, CBN tools and PCD tools will be in the cutting processing will go further and stronger.

"Made in China 2025" release is completed, the new material industry to develop new opportunities

Recently, the Ministry of Industry and Information Technology announced that "China made 2025" "1 + X" planning system has been released. The Ministry of Industry and Information Technology pointed out that "1" refers to "Made in China 2025", "X" refers to 11 supporting implementation guidelines, action guides and development planning guidelines, including national manufacturing innovation center, industrial strong, intelligent Manufacturing, green manufacturing, high-end equipment innovation and other five projects implementation guide, the development of service-oriented manufacturing and equipment manufacturing quality brand two special action guide, as well as carbide new materials, information industry, pharmaceutical industry and manufacturing talent four development Planning guide.
"By" China made 2025 "policy Dongfeng, new materials will usher in a historic development opportunities." An industry researcher who declined to be named on the "Securities Daily" reporter said.
Securities metal energy and mineral industry chief analyst Chen Li told reporters that the Cemented Carbide new material development planning guide (hereinafter referred to as the guide) on the new material industry to upgrade the impact reflected in many aspects, first of all, to enhance China's key material support capabilities. Guide to clear the direction of the development of new materials industry, emphasizing the focus on downstream applications as the guide to support the development of key applications, improve the carbide cement industry standard system.
Second, to enhance China's material industry innovation capacity. The guide emphasizes the development of new materials such as graphene, superconducting and other cutting-edge cemented carbide, while strengthening the coordination of materials industry innovation, breaking the key carbide technology and equipment constraints, which helps to enhance China's material industry's basic innovation capacity and basic equipment capacity, Consolidate the field of new materials, carbide has been innovative advantages.
Once again, improve China's new materials industry system. Guide to accelerate the development of new materials to focus on the initial market, to help improve the industrial chain, to solve the new materials research and development and application of disjointed, the early stage of industrialization and other issues, improve the process of industrialization of new materials.
State Securities believes that in the A-share market, should be "China made 2025" strategic positioning and industrial demand point of view to explore new materials boom plate. "China made 2025" and the key areas of technology road map as the next 10 years of China's industrial development of the highest guidance documents, from the perspective of industry and demand for new materials industry put forward the development priorities and objectives of the new material industry is divided into advanced foundation, the key strategy And the forefront of new materials three plates. Including for advanced materials, should focus on grasping high-performance marine steel, cemented carbide and other sectors of the investment opportunities; for strategic steel to break through the key strategic material blockade, should fully grasp the high temperature alloys, special aluminum magnesium titanium alloy and other industries Investment opportunities in the field; for the forefront of the layout, to seize the forefront of the forefront of new materials, should pay close attention to the development trend, focusing on superconducting materials and graphene materials investment opportunities.
"Benefit from" Made in China 2025 ", enterprises and investment institutions will also be optimistic about the prospects for the development of new materials industry, the influx of capital of various materials for the new material industry has brought stimulating effect in this process, the capital market will play Huge role in helping new materials enterprises sustained rapid and healthy growth, to achieve leapfrog development. "Shenzhen Qianhai Fujin Fund Management Co., Ltd., chairman of Chen Xiaoyang, told reporters at the same time, but also for the new material listed companies to enhance the valuation of a solid basis.

US captain Star Shield high hardness of metal material came to reality!

When people are still lamenting the United States captain has the "universe the hardest" star shield, Wolverine's bone was injected into the Edelman alloy has become extremely hard. You may have thought that these comic book in the high hardness of metal materials, one day will come into our real life. Recently, the US engineers successfully developed a breakthrough in the ability of new steel - amorphous alloy steel, greatly improving the future of the battlefield on the level of offensive and defensive weapons.
Compared to traditional rigid materials, this new alloy steel offers many advantages. It is cost-effective, exceptionally hard and not breakable. It has the best record of the elastic limit of alloy steel and can withstand pressures up to 12.5 GPa. Resulting in permanent deformation. In contrast, the elastic limit of stainless steel is 0.2 gpa, military armor is 4.5 gpa tungsten steel, diamond elastic limit of up to 60 gpa, but expensive and not practical, amorphous alloy steel has gradually become a scientist Concerned about the new materials.
The findings will play an important role in aerospace, military weapons, carbide precision machinery parts and the automotive industry, medical and sports equipment and other aspects play a huge role. Especially in the field of military weapons, amorphous alloy steel is one of the armor piercing core material of choice. At the same time, the use of large pieces of amorphous alloy steel can also be a high hardness characteristics of armor-piercing protective materials, such as armor, bulletproof vest, satellite meteorite protective cover. US researchers said that future research will focus on increasing the weight of alloy steel to further enhance its compression capacity.

Company carbide spray granulation tower put into operation

Celebrating BTCarbide Precision Carbide Co., Ltd, Carbide spray granulation tower officially put into production! In order to improve product quality and stability, btcarbide companies to increase capital investment, has introduced high-end equipment on the material workshop to upgrade. Through the cemented carbide spray tower granulation of the material: wax mixed evenly, granular shape rules, good flow properties, easy to press molding, enhance the density of the product.

Carbide Tool Knowledge Series No.1

Tool is used in the manufacture of cutting tools, also known as cutting tools. Generalized cutting tools include both cutting tools, including abrasive. The vast majority of the tools are machine-use, but there are hand-used. As the machinery used in the manufacture of cutting tools are basically used for cutting metal materials, the "tool" is generally understood as a metal cutting tool. Cutting wood with the knife is called woodworking tools.
Tool development in the history of human progress occupies an important position. China as early as 28 BC to the 20th century, there have been brass cone and copper cone, drill, knife and other copper tools. The late Warring States (the third century BC), due to master the carburizing technology, made of copper cutter. Drills and saws at the time were somewhat similar to modern flat drills and saws.
However, the rapid development of tools in the late 18th century, accompanied by the development of the steam engine and other machines. In 1783, the first system in France, Lenei milling cutter. In 1792, the United Kingdom of Mozley made tap and die. The earliest documentation of the invention of twist drills was in 1822, but it was not produced as a commodity until 1864.
The tool was manufactured with a high-carbon tool steel, allowing cutting speeds of about 5 m / min. In 1868, the United Kingdom's Moussheart made of tungsten alloy tool steel. In 1898, the United States and Taylor. Wright invented high-speed steel. In 1923, Germany's Schlötel invented cemented carbide.
In the use of alloy tool steel, the carbide cutting tool speed increased to about 8 m / min, using high-speed steel, but also increased more than twice, to the use of carbide, high-speed steel than with more than twice, Of the workpiece surface quality and dimensional accuracy is also greatly improved.
As the high-speed steel and carbide prices are more expensive, the tool appears welding and mechanical clamping structure. From 1949 to 1950, the United States began turning tools on the use of indexable blade, and soon applied to the cutter and other tools. In 1938, the German company to obtain on the ceramic cutting tool Dagusa patent. In 1972, the United States General Electric Company produced polycrystalline synthetic diamond and polycrystalline cubic boron nitride blade. These non-metallic tool materials allow the tool to be cut at higher speeds.
In 1969, the Swedish Sandvik steel mills to obtain by chemical vapor deposition, the production of titanium carbide-coated carbide blade patent. In 1972, the United States and the development of the Bangsha Raghulan physical vapor deposition method, in the hard alloy or high-speed steel cutting tools coated with titanium carbide or titanium nitride hard layer. Surface coating method to the matrix material of high strength and toughness, and the surface of the high hardness and wear resistance combined, so that the composite material has better cutting performance.

3DP technology to manufacture carbide molds

Carbide, a composite of fine grained hardmetals made of bonded metal hardmetals, is a very hard material that is often used in the mechanical and automotive engineering and building materials industries. Carbide die is the life of steel mold ten times or even several times, carbide mold high hardness, high strength, corrosion resistance, high temperature and the expansion coefficient is small, generally using tungsten cobalt carbide.
Carbide hardness is too high, the conventional processing is grinding, using a diamond wheel, polished with a fine point of the wheel. The hole can only be used in general electric erosion machining, such as EDM, or wire cutting, or even use electrolytic grinding technology.
Researchers at the Fraunhofer Institute in Germany have succeeded in producing carbide dies using 3DP adhesive jet-jet 3D printing technology. 3D Science Valley has learned that these 3D printing carbide dies have a much greater geometrical trough freedom than conventional methods to produce more complex geometries.
As experts in the field of cemented carbide, Fraunhofer Institute for decades for the manufacture of ceramic cemented carbide molds by uniaxial or cold isostatic pressing, these materials are mainly made of tungsten carbide. Despite the high reliability of these molds, the Fraunhofer Institute still faces the problem of the limitations of traditional manufacturing processes when creating complex geometries, such as internal helical or tortuous cooling ducts.
Now, with 3DP prints of cemented carbide powder, the Institute can easily create complex designs. 3DP is an adhesive jet printing technology in which powder particles of ceramic hard materials, including tungsten carbide particles, are printed by laminating layers of cobalt, nickel or iron. This adhesive material is not only an adhesive between the powder layers, but also allows the product to have good mechanical properties and can produce fully dense components, and even can be selectively adjusted flexural strength, toughness and hardness.
Subsequent treatments, including sintering, yielded the compactness of cemented carbide molds consistent with traditional processing methods. The Fraunhofer Institute believes that this process has a broader scope for expansion, including the uniform distribution of tungsten powder into the cemented carbide, which can be used to produce high-performance cutting tools.
Carbide in addition to mold, a wider range of uses is used as a tool material, such as turning, milling cutter, planer, drill, boring tool for cutting iron, nonferrous metals, plastics, chemical fiber, graphite, glass, Stone and ordinary steel, can also be used to cut heat-resistant steel, stainless steel, high manganese steel, tool steel and other difficult to process materials. The future, 3DP technology will be applied to the field of carbide cutting tool production, perhaps for the production of small quantities of special tools it is not impossible, 3D Science Valley will continue to focus on.

Analysis of China Carbide Industry

Carbide with high hardness, wear resistance, strength and toughness is better, heat, corrosion resistance and a series of excellent performance, especially its high hardness and wear resistance, even at 500 ℃ temperature also remained unchanged , At 1000 ℃ is still very high hardness. Carbide is widely used as cutting tool material, such as turning tools, milling cutters, planers, drill bits, boring knives, etc. It can also be used for cutting cast iron, nonferrous metals, plastics, chemical fiber, graphite, glass, stone and ordinary steel. Heat-resistant steel, stainless steel, high manganese steel, tool steel and other difficult to process materials. Now the cutting speed of new carbide cutting tools is equal to hundreds of times that of carbon steel. Due to the implementation of China's macroeconomic policy of sound and steady, the rapid growth of the national economy, demand for carbide is also high growth.
Carbide on the market in China to foreign high-performance high-precision carbide grinding blade-based coating. These alloy blades are often associated with carbide tools and CNC machine tools into China. The use of imported CNC machine tools and CNC cutting tools need to continue to add wear and tear of the carbide blade. With the rapid development of China's auto industry, as well as the field of mechanical processing of imported CNC machine tools, the increasing number of processing centers. The demand for imported high-performance high-precision abrasive coating blade is also increasing, although Zhuzhou BTCarbide Precision Carbide Co.,Ltd to domestic enterprises to provide a large number of high-performance high-precision abrasive coating blade, but blade varieties, quality and foreign advanced level There is a certain gap, especially in the domestic CNC machine tools, machining centers and CNC tool production is still relatively backward case, with the supply of alloy blade with these closely related to the situation, but also to foreign advanced carbide production enterprises with technical superiority And related favorable conditions, so that these products in China won the market.

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Carbide deep processing of products in many areas of demand will continue to grow

Carbide products are widely used in metal cutting machine tool industry, mining industry, automobile industry, oil drilling industry, electronic information industry and other fields. With the continuous development of modern processing technology, carbide high-precision blade, PCB drill, Tools and other deep processing of carbide products in these areas will continue to grow, due to the downstream industry is a very broad market potential, the future development of tungsten products industry is not limited to a downstream industry development cycle.
Technological progress has made significant progress towards the high-end industrial structure. The state will implement innovation-driven development strategies, adopt major measures such as high-end equipment, information networks, integrated circuits, new energy, new materials, bio-pharmaceuticals, aeroengines and gas turbines to foster a number of new leading industries, With the development of advanced manufacturing, CNC machining technology, Chinas carbide CNC blade market is booming, the localization process of speeding up the pace of domestic production of CNC machining technology, the rapid development of China's domestic market, . As of the end of 2015, China has 15 enterprises to build cemented carbide NC blade production line, the formation of 160 million capacity, production close to 100 million of the scale, but only 1 in 2010.