Review of CIMT2003 special processing machine tool exhibits

CIMT2003 special processing machine tool exhibit evaluation CIMT2003 special arsenic boring machine æ´™ comments on the four groups of processing machine tool exhibits, analysis of the domestic and international EDM machine tools, rapid prototyping machine (RP), high energy beam processing machine tools and other existing levels And the direction of development.

Bed; EDM wire cutting machine; rapid prototyping machine; high-energy beam processing machine 1 The CIMT2003 special processing machine tool is unprecedented. According to incomplete statistics, there are 60 domestic and foreign manufacturers and 116 special processing machines. A total of 27 EDM companies (including Taiwan) participated in the exhibition, a total of 67 units. The exhibition area of ​​the group reached 769m2, which increased by 201m2 compared with CIMT2001; 8 foreign exhibitors, 24 sets, Swiss AgieCharmilles, Japanese Mitsubishi, Sodick and other famous manufacturers participated in the exhibition. There are 9 9 RP machines at home and abroad to participate in the exhibition. Laser cutting machines have 9 machines and 9 machines at home and abroad. Three high-pressure water jet cutting machines were exhibited in China. There are also 3 laser marking machines in the 3 companies to participate in the exhibition. There is also an ultrasonic mold polishing machine exhibited by Beijing Ninghua Industrial Co., Ltd.

2 The status and development trend of NC EDM machine tools (NCSEDM) All of the foreign exhibitors in CIMT2003 are CNC EDM machines (NCSEDM), and the domestically participated CNC EDM machines (NCSEDM) accounted for 52%, compared with the previous session. The ratio of the conventional EDM machine tool (SEDM) has dropped significantly, indicating the domestic technological progress in this regard.

Today, with the rapid development of high-speed milling (HSM), the development of NCSEDM (SEDM) is indeed subject to certain constraints. However, practice shows that HSM cannot completely replace NCSEDM (SEDM), but complement each other and develop each other. But in the new situation. The development focus of NCSEDM (SEDM) should be changed. The focus should be on avoiding large-area and high-volume processing (this is the advantage of HSM), but should be precise, complex, micro-machining, deep cavity machining, deep groove narrow seam The development of machining, clear corners or edges with clear cavity machining, super-hard materials and special parts. According to this requirement, combined with the exhibits of this exhibition, the development focus of NCSEDM (SEDM) can be seen.

The high-speed and high-response servo characteristics of the spindle are becoming more and more important. Sodick started developing and producing linear motors in 1996 for the transformation of NCSEDM. At that time, inspired by linear motors on the machining center, it was the concept of high-speed and high-efficiency machining. However, after years of efforts, linear motors have found more value in NCSEDM (SEDM). The high-speed jump of the spindle enables flush-free machining, which can not only perform deep grooves with a depth of more than 100mm. Narrow seam processing, compared with conventional machining methods, can improve machining efficiency and avoid secondary discharge to improve machining accuracy. It is worth mentioning that in today's large molds, precision deep grooves and narrow slits have an increasing tendency in the cavity. The deep grooves and narrow slits in the cavity mold generally form the reinforcing ribs and air-cooled fins of the product. This kind of deep groove and narrow slit is not only more and more, but also has a deeper and deeper trend. The past depth is generally 50mm, but recently it is quite 100mm. This deep groove, narrow seam HSM and other mechanical processing methods It is almost impossible to use NCSEDM (SEDM) with high speed performance without a conventional spindle. Therefore, the high-speed performance of the spindle is suitable for processing deep molds, deep grooves, narrow slits, etc. in large mold processing and HSM. The role of strengths and weaknesses. It also has important application value in the processing of other molds and parts.

Using the AC motor to increase the voltage and other measures can also achieve the high speed of the spindle, generally used to reach 3 ~ 5m / min, although much lower than the linear motor (up to 60m / min), but also has a good deep groove, narrow seam processing performance . For example, when a graphite electrode is used to machine a slit having a cross section of 20 mm x a depth of 100 mm, the efficiency is improved by 30% to 50% compared with the conventional processing method. However, in general, the linear motor has a large aspect in this respect. Advantage.

In terms of high response characteristics, the linear motor has the characteristics of high speed and high response due to direct drive, no intermediate transmission link and no backlash. Japan's Sodick's linear motor control, with 0.l|xm drive unit, developed the drive controller (SMC) to directly control the motor by detecting the gap state, realizing real-time control without hysteresis, making high response and high Accuracy control is possible, because of high-speed servo tracking, it can maintain the optimal discharge gap, which is beneficial to the precision of small gap precision machining and the improvement of pulse utilization. It is suitable for precision and efficient machining, micro-machining, trimming and cleaning. Angle machining, etc., also makes it possible to make workpieces that were previously impossible to machine. Japan's Mitsubishi AC motor MSC high-response servo control system, the minimum command value of 0.l (xm, minimum drive value of 0.05fjim, coupled with high-rigid mechanical structure and no-weight straight drag system, with high sensitivity and very quiet , dynamic performance, is conducive to the realization of small gap high-precision machining and precision micro-machining.

The above description of the high-performance spindle servo control system is of great significance for deep cavity, deep groove narrow slit machining, small gap high precision and high efficiency machining, and precision micromachining.

Emphasis on the research and development of high-performance pulsed power supplies has a "precision" requirement. It is reflected in the discreteness of the performance of pulsed electrical components, the stability of voltage, the dispersion of surface roughness, and the flatness of processing. Repeatability of processing index under the same conditions. In fact, foreign countries have done a lot of work in these areas, reflecting a high level. In the pulse power supply voltage regulator system, the selection of electrical components to do fine, there are internal corporate specifications; from the power supply circuit structure to solve the pulse interruption (current interruption) phenomenon in small current processing, to ensure that the required pulse width It avoids the abnormal loss of small current, realizes the high efficiency of medium and fine processing, low loss requirement, makes the loss control below 1%, and ensures the uniformity of surface roughness. Foreign countries have conducted in-depth research on the requirements of pulsed power processing flatness. The precise gap detection technology makes each discharge pulse a normal discharge, which is matched with the high-response servo system to ensure the smoothness of the processing table. For example, the newly developed PS precision T power supply in Japan [Ring 1>Fn power supply has no corrugation and dent on the surface after processing area of ​​100, which is especially prominent for large-area processing and rib processing. The best surface roughness is up to 1.16 firn. Some special pulse power sources have been developed abroad. For example, a small area with a sharp angle and an X power supply standardize the electrode loss, which is of great significance for improving the cavity accuracy in small-area multi-cavity processing. .

In the case of competition, further research and development of high-performance pulse power supply is a top priority.

The expert system is the embodiment of the NCSEDM level. The so-called expert system means: facing the Gading. Requirements, sub-categories by application, with corresponding stable, reliable supporting software, and a complete system of process databases and calculation method software generated in the laboratory, production verification. The importance of the concept of the pregnancy system has been introduced a lot, but it has not attracted enough attention. So far, it can be said that none of the foreign NCSEDMs have no expert systems, and most of the domestic NCSEDMs do not have perfect expert systems. The main original H that produces this phenomenon is our systematic process test for the user's needs of the machine tool, which has always been a weak link. This kind of trial work is very large, it has thousands of data, but also user research, long time, heavy tasks, but also enough technical force to complete the database construction work. The result is up to a level of skilled operators, so it is often not enough attention. In fact, the expert system means a lot to the user. When C NCSEDM is used for mold processing, the processing parameters are many (sometimes a mold processing is completed up to Hundreds of parameters), large flexibility, complicated process, and many random influence factors. Therefore, it is very difficult for manual operators to configure the optimal set of parameters for each type of processing. Therefore, the actual processing process in manual operation is very difficult. In order to be safe (no damage to the workpiece, electrode), the performance is often reduced. This limits the optimal process level and technical improvement of NCSEDM. Because of the complicated NCSEDM processing technology, an important problem to be solved by the NCSEDM expert system is to simplify the operation, avoid the intervention during the process, and make different operators The same processing level can be achieved; the expert system can realize the predictability and repeatability of the addition: C process index, and can automatically and reliably realize the expected processing target under various processing conditions, under the same conditions. Automatically, reliably and foolishly: the process metrics that have been achieved. It can be seen that the importance of the expert system in practical application is that the expert system is NCSEDM plus 0mm2/min (the small 0.3BS wire for the FA series machine tool is 62mmVmin).

Today's anti-electrolysis (AE) power supply has been completed in the whole process AE, the real average voltage is zero AC pulse power supply. Some people call it zero defect processing. Charmill's CC power supply is such a kind of power supply. After the roughing of the power supply, the metamorphic layer is 10|xm or less, and after four times of finishing, the metamorphic layer is 11.5. The processed hard alloy has no crack and no electrolysis. Cutting titanium does not cause surface oxidation and anti-sticking of copper and zinc. When cutting PCD (polycrystalline diamond) and cemented carbide tools, the surface roughness can reach 70.21X111, and a smooth and sharp edge can be obtained. Only the AE that achieves the entire process provides the conditions for true defect-free machining.

For the processing accuracy, it is difficult to compare each other due to the shape, size and evaluation method of the test pieces. Swiss Archie uses its own standard test pieces. According to different machine tools, the test pieces are 18mmx18mmx30mm or 18mmx18mmx50mm respectively. The evaluation standard is called average contour accuracy of 7L (contotjrtolerance). In fact, the meaning is not exactly the same as the definition of strict contour. It does not include the corner precision 7>. The AGIECUTVERTEX line cutter recently introduced by Swiss Archie Company, its T! The development of nanotechnology is focused on the development of high-precision mechanical motion technology and the understanding of atomic and molecular-level electrical discharge machining processes. They believe that R has a company that recognizes the challenges of Mingda in order to achieve long-term success. Archie's newly introduced VERTEX machine tool can be machined with 02nim wire and can be threaded automatically. On the other series of machine tools of the company, new machines M: Exceilence3F, Evolution 2F, and Challtige 2F, 3F, etc., which can use ¢0.03mm filaments, are also available on the Shamir's ROBFIL2030FL machine, using the Micro-cut option. Can be used (frd03mm filament processing. Japan's Mitsubishi Corporation can also use the optional 0.03mm filament on the PA05 wire cutter to process a narrow groove with a width of 55pm. Sodick used to be mainly IT industry The service oil-immersed machine tool and Makino's UPH2 machine tool can be used with small 3mm filament processing. It can be seen that filament processing has become a commonly used technique for wire cutting processing, and whether it is used (or by optional) filaments. Cutting processing has also become an important measure of machine tool level. 3.1.4 Automation and Networking Technology Since the mid-1990s, Archie has introduced a new generation of AgievisonCNC systems, interfacing with machine scales or loading and unloading devices, and with other external or computer New CNC systems that form integrated manufacturing systems and network functions have been introduced. For example, Sodick supports linear motor drives. LN-type CNC, Mitsubishi's 64-bit CNC, and Xiamir's Millennium CNC system all have this feature. With these more complete CNC systems, with standardized mechanical interface systems (such as 3R, EP0WA) Etc.) The robot (manipulator) can be used to easily realize the automatic exchange of the pieces (pallets). All the workpieces can be installed outside the machine, pre-programmed to achieve production automation, fully improving the utilization rate of the equipment, and assisting When the working hours are actual, the productivity can be greatly improved. For example, the American Chekr tooling company uses the SD10 type loading and unloading device that can place 10 pieces of pallets and the Brownsharpe CMM finder/port for the Archie Evolution 3 line cutting machine. The annual working hours have reached 6,800 hours, and the next step is 8,000 hours.

Xia Mier's Millennium CNC system is based on the Windows NT operating system. It can be controlled on its ROBOFIL240CC/440CC wire cutting machine (JCRW type robot can handle workpiece pallets weighing up to 100kg. It can also be equipped with fast and flexible HSR5 type robot, it takes only 10 seconds to load a workpiece of 5 kg. In addition, the CNC system has a standard configuration of accessing the local area network (LAN), which is already installed on the machine...

-45 plugs in U and Ethernet, and can also send SMS (short message) to the phone or send e-mail via the network.

In view of the trend of digitalization and informationization in manufacturing, it is an inevitable trend to realize networkization by using ilemet/lntranet technology. That is, CNC machine tools are first oriented to the production site and the internal LAN (Ethernet) of the enterprise, and then to the outside of the enterprise via the Internet to meet the market. The requirements for complete and supporting solutions are required. Generally, continuous manufacturing information flow can be obtained through the local area network, which facilitates data exchange, processing status monitoring and information transmission. Through the Internet, the manufacturer can understand the type and location of the machine fault, timely and effectively determine the maintenance plan; provide the user with the correct NC program and effective processing plan; can also carry out software upgrades, provide the latest processing conditions parameter combination, use method Consultation and other services.

3.1.5 New Features of Machine Tool Structure Following the first automatic double-wire automatic exchange technology of Xia Mil's ROBOFIL2030S-TW wire cutting machine, the implementation of rough and fine cutting process on different diameters of wire on a machine tool, Archie New The AGIECUTVERTEX wire cutter was introduced with a two-wire automatic exchange system. The machine tool can automatically thread the electrode wire of 12~¢0.02mm, and the hole diameter of the threading hole only needs to be 50|xm larger than the wire diameter. Even for ¢0.02mm filaments, automated processing is possible. The specifications of the machine are not large. The AVK/Z three-axis stroke is 220/l60/100mm, the U/V axis stroke is ±4mni, the maximum T-piece size is 300mmx200mmX80mm, and the maximum workpiece weight is 35kg, but the machine tool weighs 3200kg, and the load-bearing It is similar to the 450kg medium-sized machine tool, ensuring long-term stability in the sturdiness, reflecting the design concept of the Swiss high-precision machine tool. The structure of the machine tool also pays special attention to the distance between the T-piece, the guide rail and the grating scale used as the closed-loop measurement reference. It may be small, so that the Abbe error caused by the angular displacement that cannot be completely eliminated in the table movement can be greatly reduced. At the same time, strictly control T: the water temperature and flow direction of the liquid, and the flow of hot air inside the machine to maintain the thermal stability of the whole machine. The AGTECUTVERTEX machine is equipped with a new high-efficiency intelligent power supply TPG and an Agievison3000 control system with many new features. This type of machine is considered to represent the highest level of LSWEDM on the market. The EXC100L machine from Sodick is also an ultra-precision machine tool that uses a small coreless linear motor that Sodick is proud of. The company's unique ceramic air bearing guide rails fully demonstrate the advantages of Sodick in this regard.

Since 5 Rhombus Motor Co., Ltd. is a large company with strong strength in the field of electromechanical, its products can always maintain the 1H: first-class level. In recent years, the company's FA, FA-V and other series of LSWEDM can be seen with some outstanding features: high sensitivity and high resolution AC servo straight drag without gap control system with 64-bit CNC control, minimum setting unit 0. The minimum drive unit adopts motor servo closed-loop tension control to make the wire tension system more stable. The system has stronger anti-interference ability than the magnetic powder damping tension control, and its response time is reduced from the original 4S to 1.5s. The ball screw diameter is increased to achieve a stable driving equivalent of 0.()5|.

The machine structure adopts a fixed worktable and column moving structure to improve the weight of the workbench. It is not affected by water immersion processing and workpiece weight changes. The design of the machine tool uses a super-large computer for structural analysis to ensure extremely high static accuracy, temperature stability and rigidity. The cast iron parts of the machine tool are made of Mitsubishi special cast iron (DIANITE) with small deformation and high thermal stability.

It is worth mentioning that Makino's UPH-2 machine tool is characterized by the fact that the wire is in a horizontal state in the processing zone for lateral routing and the workpiece is in a vertical suspension position. This layout facilitates the disposal of the waste core. The machine can be used with ¢0.03111 filaments, which are automatically threaded with a conduit and compressed air suction to achieve good surface quality in oil-based working fluids.

At the exhibition, a total of 6 domestic companies exhibited 7 LSWEDMs. Although there is still a big gap compared with the international advanced level, the domestically produced machines have also made great progress in terms of technical indicators reflected by the exhibits. . Suzhou Sodick Sanguang Co., Ltd. and Beijing AgieCharmilles Industrial Electronics Co., Ltd. have already acquired the capacity of mass production of mid-range machines through joint ventures with foreign companies and the introduction of technology. The DK7632A and KD7663 machines exhibited by Suzhou Sodick Sanguang Co., Ltd. adopt multi-CPU control technology, high-current discharge and high-speed sampling control technology. The operation interface has three-language menus of Chinese, Japanese and English, which is convenient for different users. Thanks to the immersion processing method, the temperature of the working fluid and the workpiece is better controlled. The maximum cutting speed of the machine tool is above 210mmVmin. The Xenon-type machine tool exhibited by Beijing AgieCharmilles uses compressed air to retract the wire. The software platform is Windows system. It has rich functions and friendly interface. The machined surface roughness can reach 0.5 (xm, which represents the domestic leading level of LSWEDM. The DK7632 LSWEDM exhibited by Suzhou Zhongte Company has added a cornering strategy to the control software to greatly improve the dimensional accuracy of the workpiece with the corner of the cutting belt. The machine has a simple structure and a low price. Hanchuan Machine Tool Co., Ltd. exhibited The HCX320A machine has a fully enclosed exterior structure and features.

HSWEDM status and development brief introduction HSWEDM market development in recent years is very fast, the annual sales volume is estimated to be more than 15,000 units, which shows from one side that this kind of machine tool has been affirmed by Chinese users and is suitable for China's market demand. Therefore, the production companies of HSWEDM have grown to about 150 in recent years, and many companies have participated in this industry. At the exhibition, KD7750 of Suzhou Sanguang Company, FW2 of Beijing AgieCharmilles Company, BDK7740T of Beijing Electric Processing Institute Dimeng Company, DK7140C-410 of Beijing Electric Machine Tool Plant, and DK7732/CNC of Suzhou New Sparks Company W1, Suzhou Jiangnan Saite's DK7750H, Jiangsu Samsung Machinery Manufacturing Company's DK7740, Suzhou Jinma's DK7763, Suzhou BMW's DK77100 and other exhibits more fully reflect the current HSWEDM technology development level. HSWEDM has made considerable progress in terms of design level, manufacturing process and processing stability. At present, the numerical control system is generally controlled by PC. The programming adopts conversational style, ISO code and 3B instruction can be compatible. The drawing size directly loses the original manual calculation, and programming integration has become the mainstream mode. The high-frequency power supply adopts high-power FET and common group pulse, and the selectivity of the process standard is greater, and the actual productivity is improved. There have also been continuous improvements in nozzle construction, taper construction, molybdenum wire tensioning devices, and the like. Many HSWEDM products can be seen at the exhibition. As long as the production enterprises have certain conditions, the appearance structure, safety protection, technical and economic indicators, processing stability and so on of the machine tool have improved.

The status quo of rapid prototyping (RP) technology and the overall situation of exhibiting companies The equipment manufacturers in the RP field of this exhibition have a total of 9 units, including 4 in China and 5 in foreign countries.

The number of Chinese RP equipment manufacturers participating in this year's exhibition is less than that of the previous one, but there are many famous foreign manufacturers. This shows that Chinese enterprises have already carried out some optimization and restructuring in the fierce market competition. At the same time, it also shows that the domestic market is expanding and the international influence is gradually being raised.

Overview of the foreign RP field The following picture is taken from the international RP field authoritative report WohlersReport, reflecting the annual equipment sales since the birth of RP technology. The report predicts that the average growth rate in 2002 and 2003 may reach more than 5%.

The annual sales of RP equipment in the world is the highest in the total number of equipment sales or turnover in the world, especially after the merger of DTM company, which currently accounts for 22.5% of the market. While focusing on prototyping technology, 3D is also focusing on Rapid Tooling Technology (RT). In 2001, the company sold 415 types of equipment, accounting for 1/3 of the world's total. The United States Stratasys still ranked second. FDM equipment sold 277 units in 2001. Both companies now attach great importance to the Chinese market and have developed many corresponding strategies. For example, due to China's high level of localization in smelting deposition/extrusion equipment, its product performance and quality have been recognized and recognized by users. In Guangdong Province, only the Pearl River Delta region has grown from 2 in 2001 to 14 in 2002. Taiwan has broken the market of rapid prototyping equipment that has been monopolized by the United States and Japan, forcing the United States and Japan to cut prices in China.

From the perspective of international equipment sales, the digital droplet forming type of machine is still a new force in RP technology and market development. In 2001, the total number of equipment sales based on droplet forming technology was 788, more than half of the total number of the year (1,298 units).

The application of RP technology in various industries continues to expand. By 2001, a total of 3,550,000 prototypes were produced worldwide, with an annual growth rate of 18.3%. Since 2001, several companies have been internationally involved in the production of RP equipment, including SandersDesign Inc. (USA, droplets) Jet), Solidica (USA, Ultrasound), ProMetal (USA, Droplet Ejection), Cubic Technologies (Israel, Layered Entity Manufacturing), Generis (Germany, Droplet Ejection), Objet (Israel, Droplet Ejection), EnvisionTec ( Germany, light curing), Arcam (Sweden, electron beam culture). It can be seen that RP technology is still in the ascendant field in the world, and the space and potential for development are still very large.

Current status of domestic RP field (1) Equipment quality tends to be stable: The key technologies of major manufacturers are relatively mature, and they all have a certain share in the market. For example, Beijing Longyuan Company is the first RP enterprise in China to pass the IS09001 quality system certification. The sales in the past two years have been steadily increasing. In 2002, 12 units were sold.

Xi'an Jiaotong University has been working on the research of photocuring rapid prototyping technology. It has successfully developed two series of five types of photocuring rapid prototyping machines, and has made many improvements in the properties of forming materials. Currently, the forming speed and forming precision As well as the mechanical properties of the material, the surface has also been improved. In 2002, the rapid prototyping machine of the solid/solid laser was used to increase the forming speed by more than ten times.

In the past two years, it has not been launched: Yu Xin 1: Art commercial equipment, 丨FI major companies have successively launched light-based curing equipment, such as Yinhua AU-m)-350 and Shanghai Luen Thai Company. , : The application field continues to expand: In addition to the various productivity promotion centers fostered by the state and local governments, the company has gradually purchased the RP equipment without any kind of RP equipment, and the company gradually realized that the technology is in product development. The importance of starting to purchase the right RP equipment within the capabilities of the company.

Xi'an Jiaotong University applies RP technology to water-saving irrigation systems. The performance trend of the emitter directly affects the effect of drip irrigation, and the structure of the emitter is very fine (minimum 0.5 rum), and the precision is high (0. The traditional development route needs to make the mold, and the one formed by the rapid curing of light curing The irrigator can directly conduct flow test and carry out the new indium irrigator, which greatly shortens the development cycle of new products and reduces the cost of r.

The application of w outside ftp technology in bio-manufacturing is also a bright spot in recent years. Tsinghua University, Xi'an Traffic A: Learning has carried out research work in this area.

The manufactured parts are becoming more and more complicated: with the advancement of T. art level and equipment level, the domestic capabilities in prototyping are gradually moving closer to the world level, reflected in prototype accuracy and prototype size. The iconic prototypes are made up of complex ç š accessories, such as the bulldozer made by Yinhua, assembled from 10 parts of JL. This greatly expands the application of TRP technology.

The development of the domestic RP field is lagging behind. The main manifestations are less exploration of new processes. There are also few principled technological inventions with independent knowledge and property rights. Only Tsinghua University's freeze-drying injection molding technology based on biological village materials, moldless casting technology, and Professor Han Hanmin from National Numerical Control Research Center of Huazhong University of Science and Technology Laser H-dimensional cutting technology.

Opportunities and Presences of China's RP Technology Development Urgently need to establish national technical standards in the RP field to standardize and guide the development of the field and the healthy growth of the market; increase the investment in scientific research, and strive to obtain the principles and technologies with independent intellectual property rights. The technology and equipment will be suitable for the development and requirements of the situation after China's Canadian W?TO; actively develop the international market and improve production scale and product quality.

High-energy beam processing machine Song laser cutting and other processing equipment With the improvement of the power and performance of commercial lasers, laser cutting, laser welding, laser engraving, laser surface modification and laser rapid prototyping technology have become the research and production departments of the national economy. Advanced manufacturing technology that is widely used. Among the many laser processing technologies, laser cutting is one of the most mature and most accepted technologies in domestic and foreign manufacturing.

Compared with the previous CJMT, the foreign manufacturers of laser cutting machines displayed here are not much different, such as the US PRC company, Germany's Tmmplu Italy's Pri-ma, Switzerland's Baichao, RofinSina, and Belgium's LVD. The laser cutting equipment is mainly based on 4000W fast axial CO: laser, and its cutting quality and speed can take advantage of laser cutting. RofinSina uses the slat C02 laser, but the domestic mentors do not agree on their approval. It is worth mentioning that Tianzhu: Japan's A-mada laser equipment represented by Tiantian China Free Group Company, its FOL3015 type equipment uses magnetic levitation technology, linear servo motor, so that the beam moving speed reaches SAOm/mh! The maximum acceleration of 5 hearts and high-speed cutting at the same time, can maintain the dynamic accuracy of the X and Y axes well. The roundness and speed of the small holes cut from the field can prove the technical advantages. This is the laser cutting equipment. The new developments, the equipment is dedicated to the exhibition, and the price is still priced.

From the recent exhibitions of laser cutting equipment, the development of laser cutting equipment has the following characteristics: First, the best laser for cutting machine is about 4000W fast axial laser, due to the fast axial laser. Mature, between 2000W and 4000W power, the price difference gradually decreases, but the cutting range is much different from the speed, so the 4000W laser equipment can be accepted by more domestic and foreign users. And the more powerful laser, in terms of performance and price ratio. There is no advantage. Second, multi-functional composite equipment has not been recognized by most users. Third, the development of laser cutting equipment is mainly the development of supporting OEMs. The high-speed and large-scale 7-step process is the development trend of many manufacturers.

Compared with foreign manufacturers, the production and sales of domestic C02 laser cutting machines have been greatly developed in the past two years. The domestic manufacturers participating in this exhibition include Jinan Casting Institute, Shanghai Baichao, Shenyang-Prima. Laser Cutting Machine Co., Ltd., Huaxia Laser, etc. According to Shanghai Baichao, in 2002 alone, their company sold more than 40 laser K cutting machines. Due to the backwardness of the development of high-power fast axial lasers in China, domestic laser cutting machines are generally equipped with imported lasers (or foreign lasers assembled and produced), and K-sleeve production OEMs. This method is internationally Laser cutting machine manufacturers are also very popular. In recent years, in the field of laser cutting machine OEM production, it has begun to become a new industry. The quality of its large cutting machine has been greatly improved, and it has obvious price advantage. Therefore, it has obvious position in market possession. . And with the continuous improvement in machine tool development, software design, etc., the production of laser cutting machine will have a very large market.

The market for optical devices is not as predicted by an expert with the trend of replacing C2 lasers. Although YAG lasers use flexible transmission of optical fibers in their own way, it is advantageous to add I屮 in two-dimensional space, and The advantage of metal for its high beam absorption rate, fH. is a disadvantage in non-metal processing, and it has not been developed so far in the development of calender cutting, more applied to laser hole making, laser welding The high-power YAG lasers exhibited in this exhibition mainly include the British GS1Ll丨-momcs, and the domestically-produced YAG laser system of more than 3kW.

The laser marking machine is another laser processing equipment at the machine tool exhibition. Because the laser used in laser marking equipment is mainly QYAG or tubular C02 laser below 100W, and the domestic development level of such laser can meet the needs of marking, the exhibitors mainly participate in the exhibition, such as Chinese in Shenzhen. Hengzhou, Beijing Machine Tool Research Institute, Wuhan Jiaming Laser Co., Ltd. and other manufacturers have added competition for marking machines.

High-pressure water cutting equipment The high-pressure water cutting equipments exhibited at this time include Fulu Ultra High Pressure Water Jet Technology Co., Ltd., Tongwei Huajia Co., Ltd. and Swiss Baichao Laser Co., Ltd.

Compared with other iMj companies, Flow is more specialized in high-pressure water processing. In recent machine tool exhibitions, you can see its field equipment performances, and more than 5,000 sets have been installed around the world. High ffi waterjet system. At present, the high-pressure water cutting equipment has a water pressure of more than 4000 bar and a water flow speed of about 丨000 m / s. At the same time, it can also increase the cutting ability of the metal by adding sand. High-pressure water cutting has certain advantages in the processing of hard materials such as stone, glass, metal and others, especially in the processing of medium-thick materials, which has the ability to be replaced by other special processing methods. Oral Advertising Customer Index Beijing AgieCharmilles Technical Services Co., Ltd. Harbin Measuring Tool Group Co., Ltd. HarbinMeasuring Beijing First Machine Tool Plant Heidehan (Tianjin) Optical Electronics Co., Ltd. Heidenhain Italy BLM Group Shangyin Technology Co., Ltd. Qingdao Outpost Langpu Measurement Technology Co., Ltd. Jinan Second Machine Tool Group Co., Ltd. Weizhou Far East Machine Tool Accessories Manufacturing Co., Ltd. Yintai Technology Co., Ltd. 2004 China CNC Machine Tool Exhibition Shanghai Liya Road Machine Tool Co., Ltd. China Machine Tool Brand Shandong Fain CNC Machinery Co., Ltd. China International Machine Tool Show. 85,86 Xiangyang Machine Tool Co., Ltd. Haas China Tianjin First Machine Tool Plant

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