Precision metal stamping parts can be found everywhere in our daily lives. They are indispensable in aircraft, spacecraft, mobile phones, watch parts, and mass production.

Today, I would like to share with you the challenges of the precision metal stamping process for parts and the concept of precision stamping or full bright band. What does this mean? In fact, the surface quality of the punched products must be ensured to be smooth and free of burrs. The key challenge lies in the fact that after the general punching process is completed, due to the influence of the punching gap and the assembly gap, it is inevitable that there will be natural collapse angles on the upper surface and burrs on the lower surface of the product. Specifically, under a reasonable punching gap, the surface quality of the product after punching is divided into the collapse angle area, the smooth area, the fracture area, and the burr area.

Precision punching is an evolution from the conventional reasonable punching process. Its characteristic is that only the area of the punching section is retained in the bright area. The section only has the bright area, and there are no burrs or corner collapses after the punching, resulting in extremely high measurement accuracy and a very beautiful appearance.

Advantages of Precision Pressing Technology

Precision stamping technology is an indispensable advanced manufacturing technology in modern production. It involves various high-tech fields such as precision press technology, high-precision stamping die technology, material technology, high-performance mold technology, mold material technology, and intelligent control technology. It has been highly valued by all industrial production sectors of the national economy. Currently, advanced manufacturing technology is the main research and development theme of countries around the world. Especially in today's era of highly developed economic globalization, precision stamping technology holds a very important position. The main reason is that precision stamping technology has outstanding advantages compared to other manufacturing technologies.

High quality of the parts

Compared with ordinary stamping, precision stamping has improved the guiding accuracy of the press and the mold, enhanced the manufacturing accuracy of the mold, reduced the clearance between the convex and concave dies, and especially enabled the sheet material to be stamped under a three-directional compressive stress condition. Combined with the lubrication and cooling provided by precision stamping oil, it has significantly improved the dimensional accuracy of the parts and the surface roughness of the punched cross-section, resulting in extremely high quality of the processed parts.

The parts are all in good condition.

Due to the use of special mold materials and heat treatment processes in the precision stamping molds, the mold dimensions have extremely high precision. The lifespan of these molds is more than ten times longer than that of ordinary stamping molds. The dimensional accuracy, shape, and positional accuracy of the processed parts are extremely consistent, which enhances the interchangeability of the parts and reduces the measurement and selection during assembly, ensuring the consistency of the products.

High production efficiency

Compared with ordinary stamping, due to the improvement in dimensional accuracy, shape and position accuracy of the parts, as well as the reduction in subsequent precision processing procedures, the use of precision stamping saves processing time for other equipment, reduces the number of intermediate product turnovers, significantly shortens the manufacturing cycle and capital occupation of components, and greatly enhances the comprehensive economic benefits of the enterprise. For certain specific industries, mature high-speed precision presses have been developed both domestically and internationally. The slider stroke of such high-speed precision presses is more than five times that of ordinary presses with similar tonnage. Not only do the stamped parts have high precision and good surface quality, and long mold service life, but they have also been widely applied in the processing of IC integrated circuit lead frame products, motor core products, electrical core products, etc., and have achieved excellent social and economic benefits.

High degree of automation

Because precision stamping integrates advanced precision stamping mold technology, intelligent control technology and other technologies, and is further enhanced by stamping automation technology, it significantly reduces the reliance on human resources. It not only improves working conditions and reduces costs, but also ensures personal safety during stamping production, changing the concept of stamping production. Therefore, precision stamping and stamping automation have been widely applied in numerous manufacturing fields such as electronics, communications, electrical machinery and appliances, instruments and meters, household appliances, automobiles, military industries, etc., and have been increasingly adopted by more and more entrepreneurs as an important means to enhance the core competitiveness of enterprises.

Overall benefits are excellent.

Precision stamping technology has excellent applications in actual production and manufacturing. The products produced by high-speed precision stamping technology in large quantities not only have the advantages of high manufacturing quality, good consistency, and high production efficiency, but also can save manpower, reduce energy consumption, shorten the manufacturing cycle and reduce capital occupation under the promotion of stamping automation, thereby improving the economic benefits of enterprises. It has been increasingly accepted and recognized by enterprises.

In the past decade or so, with the widespread application of multi-station presses and multi-functional stamping molds, especially in the automotive industry, multi-station presses have enabled tasks that previously required several sets of equipment to complete to be accomplished with just one or two machines. This has optimized the stamping process, reduced the number of stamping machines, and achieved unprecedented development in precision stamping technology in the automotive industry. For instance, in the past, two die sets were required for stamping. However, after adopting precision stamping, not only can wrinkles be prevented, but subsequent processes can also be reduced, thereby lowering the investment cost and material cost of the equipment and improving economic benefits.

Limitations on the service life of molds

Domestic mold steel has always been a weak point. High-performance mold steel needs to rely on imports. There are also differences in heat treatment processes, processing and installation methods, which result in the overall technical level of our country's molds being unable to be compared with international advanced levels. The gap exceeds 30%.

With the same mold structure and process, the situation can be clearly seen from the number of mold repairs and their lifespan. Frequent repairs lead to a decline in mold accuracy, a decrease in production efficiency, and an increase in maintenance costs, ultimately preventing the company from gaining a competitive edge in the high-end market.

The development trend of precision stamping technology

With the development of the economy and technological progress, precision stamping technology is moving towards the directions of precision, high speed, flexibility, networking, integration, informatization, intelligence, low-carbon environmental protection and globalization.

Intelligence-driven

With the continuous development of science and technology, precision stamping equipment is gradually moving towards an intelligent direction. With relatively advanced artificial intelligence technology and automatic measurement technology as the foundation, precision stamping equipment has high logical and judgment capabilities, and can effectively control and adjust the precision stamping targets. With the development of intelligent manufacturing technology, the R&D personnel of precision stamping equipment should conduct in-depth exploration in the intelligent field, which is the future development direction of precision stamping technology.

Precision

The advancement of modern technology has led to smaller sizes and higher precision requirements for various products. The quality standards for each item have become even more stringent. This trend indicates that future products will have more precise requirements in their development. Smaller in size, more convenient to use, and with lower energy consumption, this makes precision stamping technology more widely applicable in numerous fields, such as biotechnology and the medical industry. In the research and exploration of numerous scientists, precision stamping technology aligns with this development trend.

Networked

During the development of precision stamping technology and equipment, it needs to be combined with computer technology. In the research and development process, higher quality and more comprehensive functions are required. Especially with the development of information interconnection technology, many new control technologies are becoming increasingly mature, and new control technologies need to be gradually applied in precision stamping equipment. Among them, remote control equipment technology is relatively mature. In future research and development, being able to implement Internet technology is necessary to adapt to the development of future intelligent manufacturing.

Modularization

Precision presses are crucial equipment for precision stamping. With the continuous development of new products and new technologies, they will gradually move towards a modular direction. The diversity and complexity of products have led to the continuous expansion of the scale of manufacturers producing precision stamping equipment. To adapt to the variability of products, precision stamping equipment needs to gradually achieve modularization. When developing new products, reasonable standard series should be divided, and standard modules should be fully utilized to organize product development, ensuring the consistency of product interface dimensions and the completeness of product functions. At the same time, reasonable configurations of control units and automatic detection units should be increased, and their functions should be continuously improved.

Conclusion

In conclusion, precision stamping technology possesses many advantages that other processing techniques do not have, and it has been widely applied in numerous fields, such as in the automotive industry, in the electrical machinery industry, and in the semiconductor industry. It employs various technologies, which not only enhances the application efficiency of precision stamping technology but also expands its application scope. With the rapid development of science and technology in our country and the continuous emergence of scientific theories, it is necessary to continuously improve and update precision stamping technology to meet the development needs of new products, new technologies, and new processes in the future. At the same time, it also needs to adapt to the development direction of intelligence and networking. With the vigorous development of China's manufacturing industry, the research and development of new-generation precision stamping technology will undoubtedly become the development trend of China's future manufacturing industry.