Date：2013-12-07 11:52:58 Browse number：1085
Core Tip: Since the reform and opening up, with the rapid development of national economy, the market demand is growing mold. In recent years, the rapid development of the mold industry has been about 15% growth rate, the ownership component mold industrial enterprises has undergone tremendous changes, in addition to the state-owned professional mold factory, collective, joint ventures, wholly-owned and private sector has also been a rapid development.
I. Overview
Since reform and opening, with the rapid development of national economy, the market demand is growing mold.
In recent years, the rapid development of the mold industry has been about 15% growth rate, the ownership component mold industrial enterprises has undergone tremendous changes, in addition to the state-owned professional mold factory, collective, joint ventures, wholly-owned and private sector has also been a rapid development.
"Die village" Ningbo and Huangyan areas; Guangdong some big company and the rapid rise of township enterprises, Kelon, Midea, Konka and other groups have established their own mold manufacturing center; joint ventures and wholly foreign-owned enterprises are now mold there are thousands.
With the accelerating pace of international standards, increasing competition in the market, it has been increasingly recognized the importance of product quality, cost and product development capabilities. The entire mold is one of the most basic elements of the chain, mold manufacturing technology has become the measure of a country's manufacturing sector an important indicator of the level, and to a large extent determine the survival of enterprises.
In recent years, many die enterprises to increase investment for technological progress, the technological progress as an important driving force for enterprise development. Some domestic mold companies have popularized the two-dimensional CAD, and are starting to use UG, Pro / E, I-DEAS, Euclid-IS and other international generic software, some manufacturers also introduced Moldflow, DYNAFORM, Optris and MAGMASOFT and other CAE software, and successfully applied to the design of stamping die.
Automobile cover mold as the representative of a large stamping die manufacturing technology has made great progress, Dongfeng Motor Corporation mold factory, FAW mold center, such as mold manufacturers have been able to produce part of the car cover mold.
In addition, many research institutions and universities to carry out research and development of mold technology. After years of effort, we have made significant progress in the mold CAD / CAE / CAM technology, to improve the quality and reduce the mold die design and manufacturing cycle, etc. to make a contribution.
II. Future trends stamping die manufacturing technology
Development of technology for mold products Die "short delivery time", "high precision", "good quality" and "low price" for service. Urgent need to develop to meet this requirement as follows items:
1. promote a comprehensive CAD / CAE / CAM technology
Die CAD / CAE / CAM technology is the development direction of mold design and manufacture.
With the computer software development and progress, the popularity of CAD / CAE / CAM technology, the conditions are ripe, the enterprises will increase CAD / CAM technology training efforts and technical services, to further expand the scope of application of CAE technology. Development of computers and networks, is making CAD / CAE / CAM technology trans-regional, cross-enterprise, campus-wide to promote the entire industry becomes possible to achieve the integration of technical resources, so that the virtual manufacturing possible.
2. High-speed milling
In recent years the development of high-speed milling abroad, significantly improve the processing efficiency, and availability of high surface finish.
In addition, the module can be processed with high hardness, but also has low temperature, heat distortion is small. Development of high-speed milling technology, automotive, appliance industry a large cavity mold injected vitality, at present, it has more agile, intelligent, integrated direction.
3. Die scanning and digitizing system
High-speed scanning machine and mold scanning system that provides scanning from the model or in kind to the expectations of the many processing functions required for the model, greatly reducing the manufacturing cycle in the development of mold.
Some quick scanning system can be quickly installed on existing CNC milling machines and machining centers, fast data acquisition, automatically generate a variety of CNC systems machining program, CAD data in different formats, for mold manufacturing of "reverse engineering . "
Die scanning system has been in the automotive, motorcycle, household appliances and other industries have been successfully applied, I believe that in the future will play a greater role.
4. EDM Milling
EDM milling technology, also known as EDM machining technology, which is an alternative to traditional processing electrode molding cavity with new technology, it is a high-speed rotation, a simple tubular electrode as three-dimensional or two-dimensional contour machining (CNC milling like the same), therefore, no longer need to create complex forming an electrode, which is obviously a major development in the field of EDM. Abroad, the machine has been using this technique in mold processing application is expected that this technology will be developed.
5. Improve mold standardization
Degree of standardization of the mold is increasing, it estimated that China's mold standard parts coverage has reached about 30 percent, developed countries generally around 80 percent.
6. The high-quality materials and advanced surface treatment technology
High quality steel and apply the appropriate surface treatment technology to improve the life of the mold is very necessary. Mold heat treatment and surface treatment is whether the full performance of the mold steel key.
The development direction of mold heat treatment is the use of vacuum heat treatment. In addition to improving the existing mold surface treatment technology, it should be the development of advanced technology vapor deposition (TiN, TiC, etc.), plasma spraying technique.
7. mold polishing will be automated, intelligent
Quality mold surface have a greater impact on the life of molds, parts appearance quality and other aspects. Research automation, intelligent grinding and polishing methods replace the existing manual operation, in order to improve the quality of the mold surface is an important trend.
8. Development of mold automatic processing system
This is the goal of our long-term development. Mold automatic processing system (FMC and FMS systems) should be rational combination of multiple machines; with accompanying positioning fixture or positioning disk; a complete equipment, tool CNC library; a complete CNC Flexible synchronization system; quality monitoring and control system .
