The direction of development of the mold processing technology

China's mold is divided into 10 major categories and 46 subcategories. There are different processing methods, different types of mold similar mold can also be accomplished using different processing techniques to. Mold tooling work is mainly focused on the mold surface processing, surface processing and assembling, processing method precision casting, metal machining, electrical discharge machining, electrochemical machining, laser and other high-energy beam processing, as well as sets of two or more processing methods as one of the composite processing. CNC and computer technology continues to evolve, so that they get to a wide range of applications in many tooling method. In the case of varieties of industrial products and personalized increasingly obvious product replacement fast, to the fierce competition in the market, user requirements mold making short delivery time, high accuracy, good quality, low price, driven mold processing technology to the following aspects of development.

High-speed milling technology

China mold manufacturing backbone of key enterprises in recent years, has introduced high-speed milling and high speed machining centers, they have played a good role in the mold processing. The current highest speed machine tools spindle speed 100000r/min, rapid feed speeds of up to 120m/min, acceleration up to 1-2g tool change time can be increased to 1-2s. This can greatly improve the processing efficiency, and to obtain a surface roughness Ra ≤ 1 processing, the high-hardness material can be cut more than 60HRC EDM challenge. With the improvement of the spindle speed, the machine structure and configuration of the system and its key components and spare parts, cutting tools are must tie in greatly improved, so that the machine cost. The Chinese imports maximum spindle speed of high-speed machine tools mainly in the short term will continue to 10000-20000r/min, few will reach about 40000r/min. Although to a higher speed development is the inevitable direction, but the most important thing to promote.

The high-speed machining cutting process of revolutionary change, from the perspective of technology development, high-speed milling with ultra-precision machining, hard machining combination, opening up the field of milling and grinding, and greatly reduce mold polishing amount, shorten the mold manufacturing cycle, mold companies in China will be more applications. Parallel machine tool, also known as virtual axis machine tools, and 3D laser the birth of the 6-axis milling machine, and open CNC system application more add luster to high-speed machining.

EDM technology

Electrical discharge machining (EDM) has been subject to severe challenges of high-speed milling, but some of the inherent characteristics of the EDM technology and unique advantage of high-speed milling can not entirely replace the complex surfaces, such as mold, deep narrow cavity, sharp corners, machining slit grooves on pit etc.. High-speed milling can meet the processing requirements of some of these, but the cost is much higher than the EDM. Compared to milling, EDM easier to automate. Complex, precision small cavities and the fine cavity and remove knife marks, the completion of the sharp corners, narrow grooves on, deep processing and pattern processing, will be the focus of future EDM applications. In order to further play its unique role in the mold processing, is the EDM the future direction of development:

Continue to improve the efficiency of the EDM, surface integrity of the degree of automation and processing;

　　 * EDM precision equipment and large;

　　 * EDM equipment processing stability, easy operation and excellent performance and low cost;

　　 * Research and development of energy-efficient to meet different requirements and anti-electrolysis new pulse power, the power waveform detection and treatment and control technology development;

　　 * Research and development of high-performance integrated expert system technology continues to evolve and EDM intelligent and adaptive control, fuzzy control, multi-axis control, automatic exchange electrode, two-lane automatic switching anti-electrolysis and discharge energy distribution technology development;

　　 * Powder mixed processing mirror light processing technology development;

　　 * Development of micro EDM technology, including three-dimensional micro-contour CNC EDM milling and micro-EDM grinding and micro EDM technology;

　　 * WEDM in the use of artificial intelligence techniques, to go wire systems, and wear silk technology improvements;

　　 * EDM milling technology and machine tools and EDM machining centers (including molding machine and cutting machine) will be developed;

　　 * As a strategy of sustainable development, green EDM new technology is an important development trend in the future.

Rapid prototyping and manufacturing (RPM) and rapid tooling (RT) technologies

Mold the future of the largest competitive factors, how to quickly create a user needed to mold. The RPM technology may directly or indirectly for the RT. Metal mold rapid manufacturing technology goals, direct manufacturing can be used for the industrial production of high-precision of durable metal hard mold. Indirect legal mold technology is the key to the development of the short process technology to reduce the loss of accuracy, cost-laminated and surface finishing technology integration. The combination of the RPM technology with RT Technology, is the traditional rapid tooling technology (such as the low melting point alloy casting, spraying, electroforming, casting, layer, rubber poured solid, etc.) in the direction of further development. RPM technology and ceramic precision casting precision casting mold cavity forming a new way. Application the RPM / RT technology, the concept from mold design to fabrication, only about 1/4 of 1/3 of the time and cost required to the traditional processing methods, and has broad prospects for development. RT technology to further improve the competitiveness, the need to develop the data and processing the data easier to generate, high precision, small size and material restrictions direct rapid manufacturing of metal mold.

Ultra-precision machining, micromachining and composite processing technology

With the mold to provide the precision and direction of large-scale development of ultra-precision machining, micromachining and collector, chemical, ultrasonic, laser technology will be developed in one of the complex processing. Ultra-precision machining achieve submicron nano-precision ultra-precision machining technology has also been applied to the production. Electric machining, electrochemical machining, beam machining and other processing technology has become an important part of the microfabrication technology, the Global more with a wavelength of 0.5 nm radiation wave manufacturing a nano-grade plastic mold. A machine combining laser milling and high-speed milling, mold processing technology has been a new development.

Advanced surface treatment technology

Mold heat treatment and surface treatment, is the key to the ability to give full play to the performance of the mold material. Vacuum heat treatment, cryogenic treatment, including vapor deposition PVD and CVD (TiN, TiC, etc.), the ions penetrate, such as plasma spraying, and TRD surface treatment technology, diamond film covering technology, high wear-resistant high-precision processing technology, no adhesions surface processing technology in the mold manufacturing applications, and presents good prospects for development. Technical and other mold surface of the mold surface laser heat treatment, welding, strengthen and repair to strengthen and repair techniques, and will also be subject to further attention.

Mold polishing

Mold polishing still mainly manual, inefficient, labor-intensive, unstable quality. China has introduced a CNC grinding machine can achieve a three-dimensional surface mold Auto Polishing own study of humanoid intelligent automatic polishing techniques have certain results, but few current applications are expected to be developed. Should continue to pay attention to the development of special grinding and polishing techniques, such as extrusion honing, of laser honing and polishing, EDM polishing, electrochemical polishing, ultrasonic polishing compound polishing technology and process equipment.

Mold automatic processing system

With the rapid development of new technology, foreign molds automatic processing system. Mold automatic processing system should have the following characteristics: the rational combination of more than one machine; with accompanying positioning jig or positioning plate; complete jig and tool CNC library; the complete CNC flexible synchronization system and quality monitoring and control system. The person at the same time to complete the roughing and finishing machines for mold processing system. These will be developed.

Mold CAM / DNC technology and software

With CNC technology and the rapid development of computer technology, CAM / DNC technology has been widely used mold companies in China. Many software development of dedicated software for mold machining characteristics much less for high-speed machining software. Adapt to the characteristics of the mold, with a high level of CNC machining capacity, and post-processing procedures, precision machining and high-speed processing functions, user-friendly, easy to learn, offers a variety of data format conversion software and system integration preparation conditions will The direction of future development.

In addition to the above-mentioned direction of development, as well as the correct selection of the cutting tool. According to statistics, accounted for 3-5% of the total cost of the mold production tool, the correct selection of the tool, improve production efficiency more than 20%.

Mold manufacturing technology development direction

Mold manufacturing, mold for stamping parts design and mold processing often can not be divided. Therefore, in addition to the design and processing technology, but also must pay attention to the number of integrated technologies, the development direction will mold making a significant impact. Microelectronic technology, software technology as the core IT features into a digital, networked, strong penetration affect all areas of society, traditional manufacturing information is imperative.

Mold CAD / CAE / CAM integration technology

Mold CAD / CAE / CAM technology has evolved into a more mature common technology, hardware and software prices have dropped to a the SMEs generally acceptable level, coupled with the introduction of the popularization and application of microcomputer and microcomputer version of the software, the popularity of the mold industry CAD / CAM, the conditions are ripe for the rapid development of the future will. Mould CAD / CAE / CAM integration and pleasant software, integrated, intelligent, networked future direction of development. Qualified enterprises should actively carry out the CAD / CAE / CAM technology deepening application, that application of KBE technology and implementation of enterprise information engineering. From CAPP → PDM → CIMS → VM gradually deepen and improve, there are a lot of people think that the implementation of C3PCAD/CAE/CAM/PDM) technology may be more effective.

Precision measurement and high-speed scanning and digitizing systems will play a greater role in reverse engineering and concurrent engineering

With the development of high-precision molds, mold measurement techniques seem to be important. The mold stress, magnetic measurement techniques and three-dimensional measurement technology and R parts of the shape and size accuracy, surface roughness measurement techniques are mold measuring technology focus. Available shortly 4D laser measuring machine can be self-calibration, 3D measurement can be performed not only to quality indicators, and can be drawn, indicating that the accuracy of each measurement point. Online laser measurement of the CNC machining process, not only to help assure the quality of the processing of the workpiece, but also greatly enhance the safety of the operation of the NC machine. The high-speed scanner and mold scan system provides a number of features of the desired model from the model or in-kind scanning to processing required, can greatly reduce the mold manufacturing cycle. Reverse engineering and concurrent engineering mold production in the future, play an important role to.

Mold continuously improve the level of standardization

Correct and reasonable selection of mold standard parts and mold degree of standardization, can effectively reduce the mold manufacturing cycle, improve quality and reduce costs, and therefore, mold degree of standardization will continue to improve.

Virtual technology will be developed

The development of the computer and information networks, virtual technology to become a reality. Virtual technology can form a virtual space environment,, mold within enterprises virtual assembly, virtual collaborative design between enterprises, manufacturing, research and development cooperation, resulting in the establishment of a virtual enterprise.

The rapid development of management techniques

The third of seven management machinery industry often say "the importance of the management. Mold companies in the modern enterprise system, and the establishment and operation of various innovative mechanisms, both core management technology, is also mold manufacturing, insurance and corporate development. Mold manufacturing management information system (MIS), product information management (PDM) to establish the platform for the Internet e-commerce (EC) as the means of communication and contact and mold manufacturing, though not discussed in this article Wai, but they are also the mold enterprise management technology direction of development, and the importance attached by the industry.

In the development of information technology to stimulate industrialization, China's mold design and processing and manufacturing technology lagged behind the international level, enterprise management technology behind the international level, is the fact that the industry can not be ignored. To quickly raise the level of China's mold industry, all workers must study hard, firmly grasp the development direction of the world mold technology, give full play to the initiative, down to earth, with confidence to create a better future.

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