Since the reform and opening up, with the rapid development of the national economy, the market demand for mold growing. In recent years, the mold industry has been about 15% growth rate of rapid development, mold industry ownership of enterprises has also undergone tremendous changes, in addition to state-owned professional mold factory, the collective, joint venture, sole proprietorship and the private sector has also been rapid development. Zhejiang, Ningbo and Huangyan region of the "die town"; Guangdong, some large group companies and the rapid rise of township enterprises, Kelon, Midea, Konka and other groups have established their own mold manufacturing center; Sino-foreign joint ventures and wholly foreign-owned mold enterprises are now There are thousands.
With the accelerating pace of international standards, market competition is growing, people have become increasingly aware of product quality, cost and product development capabilities of the importance. Mold manufacturing is one of the most basic elements in the whole chain. Mold manufacturing technology has become an important symbol to measure the level of a country's manufacturing industry, and to a large extent determine the living space of enterprises.In recent years, many companies have increased the mold for the technological progress of investment, technological progress as an important driving force for enterprise development. Some domestic mold enterprises have already popularized 2D CAD and have started to use international software such as UG, Pro / Engineer, I-DEAS and Euclid-IS. Some manufacturers have also introduced Moldflow, C-Flow, DYNAFORM, Optris and MAGMASOFT. CAE software, and successfully in the stamping die design.
Large-scale stamping dies, such as automobile panel dies, have made great progress. Dies manufacturers such as Dongfeng Motor Co. mold factory and FAW mold center have been able to produce some car cover molds. In addition, many research institutions and universities to carry out mold technology research and development. After years of efforts, in the mold CAD / CAE / CAM technology has made significant progress in improving mold quality and shorten the mold design and manufacturing cycle, and made a contribution.For example, the independent development of the automobile cover forming analysis of KMAS software, the State Key Laboratory of Mold Technology, Huazhong University of Science and Technology Development of the injection mold, auto cover mold and progressive die CAD / CAE / CAM software , Shanghai Jiaotong University Die CAD National Engineering Research Center of the development of the cold die and fine blanking Research Center of the development of cold die and fine die CAD software in the domestic mold industry has a lot of users.
Although China's mold industry in the past 10 years has made remarkable development, but many aspects of industrial development compared to the country there is still a big gap. For example, precision machining equipment in the mold processing equipment in the proportion of relatively low; CAD / CAE / CAM technology penetration is not high; many advanced mold technology is not wide enough, resulting in a considerable part of large, sophisticated, complex and long-life mold dependent import.Development trend of future stamping die manufacturing technology
The development of mold technology for the mold products "short delivery time", "high precision", "good quality" and "low price" requirements. To achieve this requirement urgent development of the following items:
Comprehensive promotion of CAD / CAM / CAE technology
Die CAD / CAM / CAE technology is the mold design and manufacturing development. With the development and progress of microcomputer software, universal CAD / CAM / CAE technology conditions have been basically mature, the companies will increase the CAD / CAM technical training and technical services efforts to further expand the application of CAE technology. The development of computer and network is making CAD / CAM / CAE technology trans-regional, cross-enterprise, trans-institutional in the whole industry to become possible to achieve the integration of technical resources to make virtual manufacturing possible.High speed milling
Abroad in recent years the development of high-speed milling, a substantial increase in processing efficiency, and access to high surface finish. In addition, high hardness module can also be processed, but also has a low temperature rise, thermal deformation and other advantages. The development of high-speed milling technology, automotive, household appliances industry in large cavity mold manufacturing into the vitality. At present, it has a higher agility, intelligence, integration of the direction.
Mold scanning and digital systems
High-speed scanners and mold scanning systems provide the functionality needed to scan a model or a physical object to the desired model, greatly reducing mold development and manufacturing cycles. Some fast scanning systems can be quickly installed on existing CNC milling machines and machining centers to achieve rapid data acquisition, automatically generate a variety of different CNC system processing programs, different formats of CAD data for the mold manufacturing industry, "reverse engineering ". Mold scanning system has been in the automotive, motorcycle, home appliances and other industries have been successfully applied, I believe in the "Tenth Five-Year" period will play a greater role.
EDM milling
EDM, also known as EDM, is an alternative to the traditional technique of machining a cavity with a shaped electrode. It is a simple tubular electrode with high-speed rotation for 3D or 2D contouring ( Like CNC milling), it is no longer necessary to manufacture complex forming electrodes, which is obviously a major development in the field of EDM. Abroad has been using this technology in the mold machine tool applications. It is expected that this technology will be developed.
Improve the standardization of mold
China's mold standardization is increasing, it is estimated that China's current standard mold parts use coverage has reached about 30%. Developed countries generally about 80%.
High-quality materials and advanced surface treatment technology
The use of high-quality steel and the application of the corresponding surface treatment technology to improve the life of the mold is very necessary. Mold heat treatment and surface treatment can give full play to the key aspects of mold steel material properties. Die heat treatment is the development direction of vacuum heat treatment. Die surface treatment in addition to the development of advanced technology should be advanced vapor deposition (TiN, TiC, etc.), plasma spraying and other technologies.
Mold grinding and polishing will be automated, intelligent
The quality of mold surface has a great influence on the service life of mold and appearance quality of parts. It is an important trend to research the automatic and intelligent grinding and polishing methods instead of existing manual operation to improve the surface quality of mold.
Development of Die Automatic Machining System
This is our long-term development goals. Die automatic processing system should have a reasonable combination of multiple machine tools; with a positioning fixture or positioning plate; have complete equipment, tool CNC library; a complete CNC flexible synchronization system; quality monitoring and control system.
