News & Events
Oerlikon Balzers in the IMCO Cemented Carbide Tool New Coating Center
In the opening ceremony of the numerous guests, Oerlikon Balzas and IMCO hard tool in the Ohio state of Perrysburg IMCO factory factory coating center was officially established. The establishment of the new plant coating center is undoubtedly a very important step for the two companies, it further strengthens each other's long-term relationship.
IMCO is a well-known manufacturer of high-performance carbide cutting tools, such as drill bits, end mills, reamers, etc., which was established in 1977. IMCO and Oerlikon Balzers signed a contract in September 2016 to set up an in-plant coating center in Perrysburg, Ohio, USA.
The center of the coating center to the two companies long-term development strategy for the purpose: the best technology and products to serve customers. Oerlikon Balzas is committed to expanding the US Midwest market and continues to be the technology leader in PVD coating high-end solutions. The establishment of the Ohio New Center means that the company has set up four in-plant coating centers in the United States: the remaining three are located in Dover (also located in Ohio), Alma and Tawas (both located in Michigan). In order to be able to more close to serve our customers, we have the same strategic operation in the United States with 13 coating center.
Oerlikon Balzers Coating is the world's leading coating supplier whose coating can significantly improve the performance and durability of precision components, metals and plastic tools. The coating thickness of BALINIT and BALIQ is very small, the hardness is very strong, can greatly reduce the friction and wear. BALITHERM brand coating for the heat treatment provides a wide range, while BALTONE brand coating because of their beautiful color just for decorative applications. In the ePD technology brand, the company for the plastic parts of the metal coating to create a comprehensive service and solutions. More than 1,100 coating equipment around the world were put into use by Oerlikon Balchas and their customers. The development and assembly of the equipment is located in Liechtenstein. Oerlikon Balzers now has more than 100 coating centers in 35 countries in Europe, America and Asia. Oerlikon Balzás together with Oerlikon Meco to form the surface treatment business unit, belonging to the Swiss Oerlikon Group (SIX: OERL).
Oerlikon Group under the surface treatment business sector from Oerlikon Balzas and Oerlikon Megumi two brands. Oerlikon Balzers Coating is the world's leading coating supplier whose coating can significantly improve the performance and durability of precision components, metals and plastic tools. The coating thickness of BALINIT and BALIQ is very small, the hardness is very strong, can greatly reduce the friction and wear. BALITHERM brand coating for the heat treatment provides a wide range, while BALTONE brand coating because of their beautiful color just for decorative applications. In the ePD technology brand, the company for the plastic parts of the metal coating to create a comprehensive service and solutions. More than 1,100 coating equipment around the world were put into use by Oerlikon Balchas and their customers. The development and assembly of the equipment is located in Liechtenstein. Oerlikon Mecco offers surface coating innovative solutions and equipment. Customers benefit from unique and extensive surface technology, coating solutions, equipment, materials, services and professional processing services and spare parts. Innovative solutions improve the performance, efficiency and reliability of components and products. Oerlikon Medco serves the aviation, electricity, automotive, oil, gas and other specialized industrial markets. The Surface Treatment Business Unit now has more than 145 branches, more than 140 coating centers and more than 6,000 employees in 37 countries in Europe, America, Asia and Australia. The Surface Treatment Business Unit is part of the Oerlikon Group (SIX: OERL) in Switzerland.
Zhuzhou business strong attack again shining Russia Machine Tool Show
In the "zone along the way" under the guidance of the strategy, the Chinese equipment manufacturing industry to look more attention to overseas markets, Zhuzhou machine tool manufacturing enterprises are also exploring the Russian market. According to Zhuzhou City, foreign trade comprehensive service center is not complete statistics, recently, at 2017 Russia International Machine Tool Show, six Zhuzhou enterprises received more than 3,000 visitors, distributed corporate promotional materials and product information nearly 5,000 copies, and reached a number of cooperation intention.
According to reports, the Russian International Machine Tool Exhibition is the most professional in Russia, the largest machine tool exhibition. The exhibition covers a total of eight pavilions, the exhibition covers a wide range of machinery industry products, including machine tools, engineering machinery, hardware tools, welding heat treatment, electronic power, material handling, a total of the United States, Britain, France, Germany And other 32 countries, 981 exhibitors.
In the city of foreign trade comprehensive service center and the city small and medium import and export enterprises Association, in addition to Zhuzhou Diamond Cutting Tools Co., Ltd. large enterprises, Zhuzhou Hongtong Carbide Co., Ltd., Zhuzhou US special excellent Carbide Co., Ltd., Zhuzhou tomorrow hard Alloy Co., Ltd., Zhuzhou Riddle Metallurgical Equipment Manufacturing Co., Ltd., Zhuzhou Xinhua Carbide Industry Co., Ltd. and other five small and medium enterprises exhibitors. 5 days to show down, Zhuzhou City, fully affirmed the product, a number of exhibitors purchase intention is obvious. Is expected in the second half of the exhibitors will bring about millions of dollars in sales revenue.
In 2015, Zhuzhou 8 to carbide manufacturing and rail transportation production-oriented enterprises also organized to participate in the Russian International Machine Tool Show, it is understood that at the 2015 Russian Machine Tool Show, Zhuzhou City, 8 companies received a total of more than 1,800 customers, Professional customers about 1500 people, found more than 200 valuable customers, cooperation intention of 38 customers, including three on-site contract. At that time, Zhuzhou enterprises have made a good exhibiting effect for Zhuzhou City to open up the Russian market has brought some reference value, to speed up Zhuzhou enterprises "going out" pace.
2017, Zhuzhou enterprises struck, once again shining Russia International Machine Tool Show, enough to show that Zhuzhou enterprises have the "out" the strength of "Zhuzhou manufacturing" is a step by step,
Talking about Tungsten Carbide Tools
Abstract: This paper reviews the basic properties of conventional tool materials, reviews the research status of tungsten carbide tool materials, and puts forward the research on the preparation of high performance and hard materials with whisker reinforcement and nanostructure reinforcement technology development ideas.
keyword: Tungsten Carbide Tools,tungsten carbide tool materials
The tool is an indispensable tool for cutting Garting, whether it is an ordinary machine tool or an advanced CNC machine tool INCi, a machining center IMC and a soft dislocation manufacturing system IFMCl, all must rely on the tool to complete the cutting process. The development of the tool has a direct impact on improving productivity and processing quality. Material, structure and geometry are the three factors that determine the cutting performance of the tool, in which the performance of the tool material plays a key role.
First, the basic performance of conventional tool materials:
High-speed steel with high heat resistance, cutting temperature of up to 6000 ° C, with good toughness and formability, can be used to manufacture all kinds of knives, such as tap, twist drill, gear tool, sliding door, Wait. However, the high-speed steel is also the existence of wear resistance, poor heat resistance and other defects, it has been difficult to meet the modern cutting tools on the increasingly high requirements of the tool; In addition, high-speed steel materials in some of the main elements (such as: tungsten) Of the storage resources in the world increasingly depleted, it is estimated that the reserves only enough to re-use the use of 40 years - 60 years, so high-speed steel material to the temporary development crisis.
Second ceramic. Compared with cemented carbide, ceramic materials have higher hardness, red hardness and wear resistance. Therefore, the processing of steel, the durability of ceramic cutting tools for the carbide cutting tool 10 times - 20 times, the red hardness than the carbide 2 times -6 times, and the stability of the stability, antioxidant capacity are better than hard Qualitative alloy. The disadvantage of ceramic materials is brittle large transverse fracture strength is low, bear the impact load capacity is poor, which is in recent decades people continue to improve its focus. Ceramic tool materials can be divided into three categories: alumina-based ceramics. Usually in the Al203 matrix material by adding TIC, WC, SIC, TaC, ZrO2 and other components, the hot pressed into a composite ceramic tool. Silicon nitride ceramics. Commonly used silicon nitride ceramic for the SiN + TiC + Co composite ceramic, its toughness is higher than the alumina-based ceramics, hardness is equivalent. Silicon nitride aluminum oxide composite ceramic. Also known as race Aaron ceramics, hardness up to 1800HV, bending strength up to L20GPa, the most suitable for cutting high temperature alloys and cast iron.
Three cermet. The cermet is composed of ceramic particles, TiC and TiN binder Ni, Co, and Mo, unlike the cement composed of WC. The hardness and hardness of the cermet are higher than those of the cemented carbide, and the transverse rupture strength is greater than that of the ceramic material, which is less than that of the cemented carbide. The chemical stability and oxidation resistance are good, the peeling wear resistance, the oxidation resistance and the diffusion Lower bond tendencies and higher blade strength. The cutting efficiency and working life of the cermet tool are higher than those of the cemented carbide and the coated carbide tool. The machined parts have a small surface roughness. Due to the low adhesion between the cermet and the steel, the cermet tool Layer carbide cutting tool steel workpiece, the chip formation is more stable, in the automated processing is not easy to produce long cutting winding phenomenon, the basic edge of the parts without burr. The disadvantage of cermet is poor thermal shock resistance, easy to break, so the use of limited range.
Research Status of Carbide Tool Materials: As the carbide tool material wear resistance and toughness is not easy to take into account, so the user can only according to the specific processing objects and processing conditions in a number of carbide grades to select the appropriate tool material, which gives carbide tool selection and Management brings a lot of inconvenience. In order to improve the comprehensive cutting performance of carbide cutting tools, the current research hotspots mainly include the following aspects:
Refine the crystal particles. By refining the grain size of the hard phase, increasing the interfacial surface area of the hard phase and enhancing the intergranular bonding force, the strength and the wear resistance of the cemented carbide tool material can be improved. When the WC grain size is reduced to below submicron, the hardness, toughness, strength, abrasion resistance of the material can be improved, and the required temperature for complete densification can be reduced. The grain size of fine cemented carbide is 3μm-5μm, the grain size of fine grain cemented carbide is 1μm -15μm, the grain size of ultrafine grain cemented carbide can reach 0.5μm or less (submicron, nanometer) The Ultrafine grain cemented carbide and composition of the same ordinary carbide compared to the hardness can be increased above 2HRA, bending strength can be cut 600MPa - 800MPa. Commonly used grain refinement process methods are physical vapor deposition, chemical vapor deposition, plasma deposition, mechanical alloying and so on. Equal-diameter lateral extrusion (ECAE) is a promising grain refinement process. The method is to place the powder in the mold and squeeze it in a direction that is different (and not opposite) from the extrusion direction, and the cross-sectional area at the time of extrusion is constant. The crystal grains processed by ECAE process can be refined. As the grain refinement process is still not mature enough, so in the cemented carbide sintering process is easy to grow into coarse grains, and the general growth of grain will lead to material strength decreased, a single coarse WC grains are often Is an important factor causing material fracture. On the other hand, the price of fine grain cemented carbide is more expensive, its promotion and application also play a certain role in restricting.
second coated carbide. (CVD), PVD (physical vapor deposition), HVOF (high Velocity Oxy-Fuel Thermal Spraying) and other methods to cover a thin layer of wear-resistant metal compounds, can be on the toughness of the cemented carbide matrix, through the CVD (chemical vapor deposition) So that the strength of the matrix and the wear resistance of the coating combined to improve the overall performance of carbide cutting tools. Coated carbide tool holder Good wear resistance and heat resistance is particularly suitable for high-speed cutting; because of its high durability, versatility, for small quantities of multi-species of flexible automation plus I can effectively reduce the number of tool changes , To improve the efficiency of flying; coated carbide cutting tools on the crescent-worn wear capacity, tool blade and groove stability, chip breaking effect and with its cutting performance is reliable, is conducive to the automatic control of the process; coated carbide The substrate of the tool is passivated, and the precision of the precision is high after refining, which can meet the requirements of automatic machining for tool positioning accuracy. The above characteristics determine the coating of carbide cutting tools particularly suitable for thousands of FMS, CIMSI computer integrated manufacturing systems such as automation plus - [equipment. However, the use of coating method has not yet solved the problem of toughness and impact resistance of cemented carbide base material.
three surface of the overall heat treatment and recycling heat treatment. The nitriding and boronizing treatment of the cemented carbide with good toughness can improve the surface abrasion resistance. Good adhesion to the toughness of the hard alloy better heat treatment, can change the material in the binder composition and structure, reduce the WC hard phase of the adjacent degree, thereby enhancing the strength and toughness of cemented carbide cycle The heat treatment process relieves or eliminates the stress between the grain boundaries, and can improve the comprehensive performance of the cemented carbide material comprehensively.
four Add rare metals. In the cemented carbide material added Tac, NbC and other rare metal carbide, can add additives and the original hard phase WC, TiC combined to form a complex solid solution structure, thereby further strengthening the hard phase structure, and can play a hard Phase grain growth, uniform tissue uniformity and so on, to improve the comprehensive performance of cemented carbide great benefit.
five Add rare earth elements. In the carbide material to add a small amount of yttrium and other rare earth elements, can effectively improve the material toughness and bending strength, wear resistance has improved. This is because rare earth elements can strengthen the hard phase and binder phase, clean grain boundaries, and improve the carbide solid solution on the adhesion of wetting. Add rare earth elements of the hard alloy is best suited to the ancestral grade, can also be used for semi-finished grades. In addition, the type of cemented carbide in the mine, the top hammer, drawing die and other carbide tools also have broad application prospects. China's rare earth resources Feng channeling, in the hard alloy to add rare earth element cable research also has a high level.
Concluding remarks This paper analyzes the hard alloy cutting tool research, and says that the performance of the cemented carbide material and the future development of ideas.
Analysis on the Differences of Cutting Tools at Home and Abroad
The engine is the heart of the car, and its parts manufacturing process level is generally higher than other auto parts. Coated cutting tools, ceramic cutting tools, super-hard tools and other advanced tools in the engine manufacturing process has been widely used. China's automobile production line (especially the car production line) is mostly introduced from abroad, in the production line when the main use of imported cutting tools, cutting tool use is also used abroad recommended value. These tools set new materials, new technology, cutting principle, surface treatment and other advanced technology in one, with high performance, high life, high reliability characteristics, basically represents the advanced level of modern tool technology.
Engine and tool of the fetters, Mitsubishi engine: the domestic production of new car production line in the manufacturing technology there are three more obvious trends: high-speed, high-speed machining to achieve the basic requirements are: ① to achieve high-speed operation of the machine tool spindle; Using a high-precision, high rigidity HSK handle with a strong chuck; ③ using coated carbide, cermet, ceramic, CBN, PCD and other advanced tools. Flexibility and flexibility are one of the development trends of engine manufacturing. In the local automatic line of the local station with CNC or machining center to achieve flexible processing of the production line known as flexible automatic line (FTL), the general use of Japanese factories more. A flexible manufacturing system consisting of a dedicated machining center is mainly used for cylinder head and cylinder machining. From the production point of view, you can achieve from the traditional FMS system starting production with an annual output of 50,000 to the traditional automatic line of 200,000 production.
High efficiency, from the Japanese auto industry situation, the average cutting efficiency increased by 28% every 5 years, of which the average cutting speed increased by 19%, the average increase in feed 8%, and in recent years the increase in cutting efficiency of 30 %the above. The current production of the main parts of the engine production has been reduced to 30 to 40 seconds, more than a decade ago to shorten more than 50%. For example, with high-speed machining center milling gray cast iron material cylinder, cutting speed can reach V = 700 ~ 1500m / min, the tool uses CBN blade. Milling aluminum alloy cylinder, cylinder head, the widespread use of PCD tool, taking into account the high-speed rotation will have a lot of centrifugal force, so the body is made of high strength aluminum alloy material. In short, the engine manufacturing industry is a clear trend is to use high-speed processing technology to improve efficiency, shorten delivery time, reduce production costs and improve market competitiveness.
Tool market status: the automotive industry is the most widely used tool industry, but also a measure of a country or a tool company's technical level of the level of the logo. China's automobile production line (especially the car production line) is mostly imported from abroad, and the tool is mainly imported with the equipment. At present, the domestic automobile production line is American type, European type and Japan and South Korea type, as well as the European equipment mainly autonomous type.
In this way, in China, the five major tool factions are active: one is the mountain system (including the mountain high), Sandvik company has a large and complex tool branch, the largest in the Chinese market; Second, the United States Department, mainly Kenner, (Including the MAPAL, Guehring, Widia, TITEX, Walter, etc .; four is Japan and South Korea, including Mitsubishi, Sumitomo, Toshiba, OSG, Dai Jie), the third is the European Department, mainly in Germany, including MAPAL, Guehring, , And so on, Hitachi, etc., as well as South Korea's Taegutec, KORLOY company; five is the Department of Israel, mainly ISCAR (Iska). These companies are almost filled with the market space for automotive knives. In some large-scale automobile factory, domestic tool may only account for about 10% of the total project, therefore, imports of tools still occupy a dominant position.
Our short board: the overall state of the domestic tool industry is starting low, late start, advanced CNC tool just with the development of CNC machine tools in recent years began to R & D and production, so the basis of CNC tool products is relatively weak, slow development, competition Not strong. The main reason for the large-scale cutting tool market in China is: the high grade of foreign tool products is high, the variety is good and the quality is good; and the tool is closely linked with the machine tools. Foreign machine tools are often used in foreign countries. On the domestic varieties of incomplete cutting, in the product finishing, high-performance cutting and special requirements are mostly used when the foreign tool. The combination of many factors formed a passive role of domestic tools.
To achieve the process of localization of the tool there are heavy resistance, with congenital systemic barriers. Take the car production line as an example, our country in the introduction of sedan models and CNC automatic production line in the initial stage, often do not attach importance to the domestic matching tool problems, not to improve the domestic car tool technology level. After the introduction of the production line, followed by the special tool, tool variety specifications, technology, specialization requirements are high, the existing domestic varieties of knives, quality, supply and service capabilities are difficult to meet the requirements. At the same time, supporting perfect, that is, the use of dozens of foreign tooling brand eyeing, making the localization of the tool work difficult, obviously in a passive state.
Comparison of cutting tools at home and abroad: from the 20th century, 80 years, in the world of manufacturing development and manufacturing technology driven by the progress of cutting technology and tools gradually into the high-speed, efficient and innovative technology development stage, Improve, for the development of manufacturing made an important contribution. Efficient cutting technology and tooling has become the basic technology and key technology of automobile manufacturing industry. High-speed cutting, dry cutting, hard cutting and other new cutting process is changing the traditional processing technology, showing a strong vitality. I believe that the domestic tool manufacturers to participate in international competition, the most fundamental way out is to enhance the overall level of enterprise tool technology.
We must clearly see that the domestic tool companies in the technical level, production technology and manufacturing equipment and other foreign counterparts compared to the existence of a large gap between the production of tool products in the processing quality, service life, reliability, technical services, etc. Still can not fully meet the growing needs of users. So there is a long way to go, we have a lot of work to do, there is still a long way to go, we have to redouble our efforts.