Ningbo Metal Sharing Supply Chain Management Co., Ltd
Common problems and disadvantages of stamping dies and countermeasures. Problem point: punching edge Bad causes: 1. Knife or punch wear 2. The clearance is too large (the effect is not obvious after grinding the blade) 3. Knife edge collapse 4. Guide column / guide sleeve wear Solution: 1. Grinding knife edge 2. Adjust the blanking gap according to the product section 3. Researching the knife edge 4. Adjust the gap of the station (to ensure the wear of the template hole or the accuracy of the...
Low-end automotive stamping dies often rely on the manual techniques of the fitter. Combined with the development of modern CNC machining technology, high-end automotive stamping die manufacturing enterprises must configure large-scale gantry five-face machining center, large-scale gantry five-axis machining center, large-scale gantry three-coordinate measuring equipment and advanced online measuring system. Develop high-end automotive mold manufacturing technology, focusing on the surface...
In recent years, the level of stamping dies in China has greatly improved. Large stamping dies have been able to produce a single set of molds weighing more than 50 tons. The cover molds for mid-range cars can also be produced domestically. Multi-position progressive die with an accuracy of 1~2μm and a lifespan of about 200 million times can be produced in many domestic enterprises. The precision die with surface roughness up to Ra 1.5μm, the large-size (Φ-300mm) precision die and...
It is understood that since the formation of the stamping die industry in China, it has developed rapidly, accounting for 40.33% and 25.12% of the total import and export volume of molds, and has become one of the important exporters in the international stamping die field. The adjustment of the layout of the domestic metal stamping die industry is a natural trend of economic development. After the accumulation of technology, talent, and funds in these years, the eastern region will gradually...
The technology-intensive metal stamping die is one of the rapidly developing industries in the domestic mold manufacturing field in recent years. It has gradually emerged as a high-end, large-scale, sophisticated and complex development trend, and has become an important force in promoting China to become a mold manufacturing power. At present, the development characteristics of the domestic metal stamping die industry are obvious. Large-scale, sophisticated, and complex products have become...
In the past few years, according to the unique lubrication function of DJB-823 solid film protectant (hereinafter referred to as 823 protectant) invented by Professor Peng Daowu of Beijing University of Posts and Telecommunications, it is lubricated with the theory of friction, wear and lubrication involved in friction theory. The grinding performance is introduced into the field of machining, which makes it effective in improving the durability of cutting tools, cold-punching dies and...
In 1953, Changchun First Automobile Manufacturing Co., Ltd. established the first die shop in China. In 1958, the factory began to manufacture automotive cover molds. China began to produce fine-punching dies in the 1960s. After a long road of development, China has formed more than 30 billion yuan (excluding the statistics of Hong Kong, Macao and Taiwan, the same below.) The production capacity of various stamping dies. First, the stamping die market situation China's stamping dies have...
The stamping die is the main process equipment for stamping, and the stamping part is completed by the relative movement of the upper and lower molds. Due to the continuous separation between the upper and lower molds during processing, if the fingers of the operator continuously enter or stay in the closed area of the mold, it will pose a serious threat to their personal safety. (1) Main parts, functions and safety requirements of the mold 1. Working parts The convex and concave molds are...
Jiuzhi Plastics Network Xiaobian finishing the stamping die design and production skills, welcome the industry to come to the reference. I. Information from the situation of waste The waste is essentially the reverse of the shaped hole. That is, the same part with the opposite position. By checking the waste, you can determine if the upper and lower mold gaps are correct. If the gap is too large, the scrap will have a rough, undulating fracture surface and a narrow band of light. The larger the...
Stamping is one of the practical processes for the production of large-volume parts. In the stamping production process, the mold has the most problems, it is the most important factor in the entire stamping production factor, directly affecting production efficiency and cost. Affect the delivery cycle of the product. The problem of stamping dies is mainly focused on mold damage, product quality defects and sharpening of the mold, which have long plagued the industry. Stamping production can...
In recent years, the product structure of the mold industry has been accelerating. The development rate of high-tech molds represented by large-scale, sophisticated, complex, long-life molds is higher than the overall development speed of the industry, accounting for about 35% of the total molds. China's current total production of stamping parts processing mold has been ranked in the forefront of the world, and began to gradually change from a mold importing country to a mold exporting...
First, the modular method of mold Shortening the design cycle and improving design quality is one of the keys to shortening the entire mold development cycle. Modular design is the use of product components in the structural and functional similarity, and to achieve product standardization and composition. A lot of practice shows that modular design can effectively reduce product design time and improve design quality. Therefore, this paper explores the use of modular design methods in mold...
The punch is a stamping press. In the national production, the stamping process saves material and energy due to more traditional mechanical processing, has high efficiency, has low technical requirements for the operator, and can achieve the advantages of products that cannot be achieved by machining through various mold applications. Its use is more and more extensive. (1) Punch wear too fast 1 mold gap is too small, the general Jian Han mold gap for the material thickness of 20%, 25%. 2 The...
In the production of metal containers, there are many processes that belong to the stamping process. Over the years, due to the safety issues of stamping, incalculable property losses have been caused and many workers have become disabled. According to incomplete statistics, in recent years, among the enterprises in the metal container industry in China, an average of 5 or more persons with disabilities in each company is caused by insecurity in stamping. Crank presses are commonly used for...
Since it was invented in Europe in the 1920s, fine scouring technology has gone through more than 90 years. It is one of the most important precision plastic forming methods in the field of heavy plate manufacturing. It is economically producing high-volume, high-quality, versatile black metal. High-tech and economical methods for non-ferrous metal parts. The fine stamping press completes a stamping process. Through the processing of special fine stamping dies, one or more high precision parts...
Die failure is the most prone problem in the production of stamping dies. It often results in production suspension and affects the production cycle. Mold damage Mold damage refers to the cracking, breaking, and opening of the mold. To deal with mold damage, it is necessary to look for the reasons from the mold design, manufacturing process, and mold use. Therefore, it is necessary to find the cause of the mold failure as soon as possible and maintain it properly. First of all, it is necessary...
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