Prospects for metal stamping industry
Common problems and breakthrough points in the domestic metal stamping market:
According to statistics, in 2003, China produced about 2.4 million tons of auto stamping parts, 800,000 tons of motorcycle metal stamping parts, 1.9 million tons of motorcycle metal stamping parts, and about 960,000 tons of tractors and agricultural vehicles. Air conditioning and refrigerator metal stamping parts 1 million tons / 1.28 billion pieces. Industry experts predict that with the rapid development of the automotive industry in the largest user market in the metal stamping industry, the Chinese metal stamping industry has ushered in a period of rapid development opportunities, but can seize the opportunity to achieve new and faster development, Experts pointed out that there are still many obstacles and obstacles to overcome and break through on the road ahead.
Resistance 2: low production concentration
Many automobile groups are large and complete, forming a closed internal package, which leads to various types of metal stamping parts of various enterprises, low production concentration, small scale, easy to cause low-level redundant construction, difficult to meet specialized division of labor production, and weak market competitiveness; The motorcycle metal stamping industry faces fierce market competition and is in a state of “excellent and inferior, not inferior”; the head manufacturing enterprises are small and scattered, with a concentration of only 39.2%.
Breakthrough point: take the road of specialization
Quickly change the current "big and complete" and "disparate" pattern, separate the metal stamping parts from the automobile group as soon as possible, and set up several large-scale metal stamping parts according to the large, medium and small parts of automobile stamping parts. Manufacturing supply centers and dozens of small and specialized parts factories. Through the specialization road, we can make the hardware stamping parts bigger and stronger, and become a supplier of metal stamping parts with competitive strength in the world.
Resistance 1: Mechanization, low degree of automation
70% of the 680 metal stamping lines in the United States are multi-station punching machines. 32% of the 250 domestic production lines in Japan are multi-station punching machines, and this kind of large-scale multi-station punching machine representing the current international level is not used in China. More and more; SME equipment is generally backward, high energy consumption and high environmental pollution; head forming equipment is simple, manual operation is more important; fine punching machine is expensive, 5 to 10 times that of ordinary punching machine, most enterprises are unable to invest hinder The promotion and application of fine punching technology in China; hydroforming, especially internal high pressure forming, large equipment investment, it is difficult to start in China.
Breakthrough point: accelerate technological transformation
It is necessary to change most of the current backward situation of manual loading and unloading, and adopt new techniques to improve the degree of mechanization and automation in light of specific situations. The stamping of automobile body cover parts should be directed to the single-machine connection automation and robot metal stamping production line, especially the development of large multi-station punching machines. We will strive to increase investment and accelerate the technological transformation of the automobile stamping parts production line so as to reach the current international level as soon as possible. With the development of microelectronics technology and communication technology, the technical and basis for automation and flexibility of Sheet metal forming equipment has been established. Accelerate the development of digital flexible forming technology, hydroforming technology, high-precision composite forming technology, and profile bending forming technology and related equipment for a new generation of lightweight body structures. At the same time, the old domestic equipment will be transformed to make it play a new production capacity.
Resistance 4: Slow transformation of scientific and technological achievements, advanced technology promotion
In China, many new metal stamping processing technologies are not too late, and some have reached the international advanced level, but it is often difficult to form productivity. There are not many applications of advanced metal stamping technology, and some are only in the trial stage, and the absorption, conversion and promotion are slow. The investment in technology development costs is small, which leads to the slow application of advanced technology and the lack of development and innovation capabilities. The gap between SMEs in this area is even worse. At present, most of the domestic enterprises still use traditional metal stamping technology, which lacks research and technical reserves for the forming technology required for the next generation of lightweight automobile structures and materials.
Breakthrough point: the road of joint production, learning and research
Compared with Europe, the United States, and Japan, the biggest gap between China and China is that there is still no combination of production, study, and research. It is difficult to make scientific research, and the results cannot be transformed into productivity as soon as possible. Therefore, it should focus on large-scale development and industrialization projects, with universities and scientific research units as technical support, enterprises as application bases, and enterprise joint entities that form products, equipment, materials and technologies to form benign products that can not only develop and innovate, but also rapidly industrialize. cycle.
Resistance 3: The self-sufficiency rate of metal stamping plates is insufficient, and the specifications are not matched.
At present, China's automotive thin plates can only meet about 60%, while high-grade car steel plates, such as high-strength plates, alloyed galvanized sheets, and ultra-wide plates (1650mm or more), are all imported.
Breakthrough point: materials should be coordinated with the industry
The varieties of steel sheets for automobiles should be more reasonable, and they should be developed in the direction of high-strength, high-corrosion resistance and various specifications of sheet steel, and improve the metal stamping performance. Aluminum and magnesium alloys have become rational materials for lightweight vehicles, and expanding applications is already in the works.
Resistance 5: Large, precision stamping dies rely on imports
At present, the materials, design and production of metal stamping dies can not meet the needs of domestic automobile development, and the degree of standardization is still low, about 40%~45%, while the international average is about 70%.
Breakthrough point: Improve the level of informationization and standardization
It is necessary to transform the stamping die enterprise with information technology. The development focus is to promote the CAD/CAM/CAE integration technology, especially the computer simulation analysis and optimization technology (CAE) of the forming process. Accelerate the standardization process of stamping dies in China, improve accuracy and interchange rate. Strive to achieve a coverage rate of 60% for stamping die standard parts in 2005, and more than 70% in 2010 to meet market demand.
Resistance 6: Lack of professional talent
High-quality talents with advanced design analysis technology and digital technology in the industry are far from meeting the needs of the rapid development of the metal stamping industry. In particular, the professionals in the motorcycle industry who have the knowledge and skills of metal stamping and technology are more lacking and outflowing. In addition, many joint venture companies are engaged in engineering design by foreign parties, mastering design rights and investment rights. It is difficult for our metal stamping technicians to truly grasp the true meaning of metal stamping technology.
Breakthrough point: improve the quality of industry personnel
This is an urgent task and a long-term and systematic task. The revitalization of China's metal stamping industry requires a large number of high-level scientific and technological talents, a large number of entrepreneurs who are familiar with domestic and foreign markets, have modern management knowledge and capabilities, and a large number of advanced skilled personnel with advanced technology and technology. We must be willing to make great efforts and cultivate in a planned and hierarchical manner.
The rapid development of the metal stamping and forming user market has brought new development opportunities to the stamping industry. Although there are various obstacles and obstacles in the development of the stamping processing industry, we always believe that these can not block the hardware. The pace of the stamping industry is moving forward.
DESHENGRUI Machinery is a professional CNC manufacturing and Sheet metal fabrication company, including CNC machining services, CNC Turning service, CNC milling services, CNC drilling services, laser cutting services, stamping services, Die casting service, iron casting service and Steel Forging service.