High quality
The development trend of die steel in Europe and the United States is that a series of new die materials have appeared successively in carbon tool steel, low alloy tool steel and high alloy tool steel, and the alloying degree of die standard steel is also increasing.
1. Development trend of new plastic die steel abroad
Plastic mold steel with good machinability and polishing, such as 412 and M-300 in the United States, YAG in Japan, EAB in the United Kingdom, stavax-13 in Sweden, etc; Pre hardened plastic mold steel, such as P20 and 445 in the United States, PDS in Japan, movtrex-a (2312) in Germany, etc; Integrally hardened plastic die steel, such as A2, D3 and H13 in the United States; Corrosion resistant plastic die steel, such as 110cr-mo17 in the national standard ISO, 4Cr13 of Assab company in Sweden, etc.
2. Advanced die surface treatment process
The surface of die was treated by multi-element co infiltration and compound infiltration instead of single element infiltration. For coating on the mold surface, the available coatings are tic, tin, TiCN, TiAlN, CrN, Cr7C3, W2C, etc. the preparation of the coating can be achieved by physical vapor deposition, chemical vapor deposition, physical chemical vapor deposition, ion infiltration, ion implantation and other methods.
High accuracy
The high-speed scanner and mold scanning system provide many functions required from model or physical scanning to processing the desired model, which greatly shortens the development and manufacturing cycle of the mold.
Mold scanning system has been successfully applied in European and American mold industry. Equipment in this regard, such as the cycloseries2 of Renishaw company in the UK, which can complement the advantages of laser probe and contact probe. The laser scanning accuracy is 0.05mm and the contact probe scanning accuracy is 0.02mm.
High efficiency
1. High speed machining technology is widely used
It is generally used for large panel dies, and its surface machining accuracy can reach 0.01mm. After high-speed milling and finishing, the mold surface can be used only with a little polishing, which saves a lot of time for grinding and polishing. High speed machining greatly shortens the mold making cycle, thereby improving the market competitiveness of products.
2. Combination of rapid prototyping technology and rapid molding technology
The rapid prototyping technology and rapid tooling technology are applied to mold manufacturing, that is, the prototype of product parts is manufactured by rapid prototyping technology, and then the mold is rapidly manufactured based on the prototype. The cost of applying this technology from mold design to manufacturing is only 1/3 of that of traditional methods. The rapid prototype casting silicone rubber mold is used for a small number of plastic parts, which is very suitable for the trial production of products. The injection mold made of aluminum can shorten the injection cycle by 25-30%, greatly reduce the weight of the mold, and shorten the grinding and polishing time by half.
Innovation impetus
In order to strengthen competitiveness, the production of foreign die steel tends to be centralized from decentralized, and many companies conduct cross-border mergers. In order to compete better, these companies have built perfect and technologically advanced die steel production lines and die steel scientific research bases, and formed several world-famous tool and die production and scientific research centers to meet the rapid development of the die industry.
Editor's note: mold industry is the base material of modern technology. It is an industry that relies on technology and quality. Only by strengthening R & D can we remain invincible in the industry. At present, there is still a certain gap between the domestic mold industry and its foreign counterparts, but as long as we quickly absorb foreign advanced technology and constantly try to improve and innovate, we will make great breakthroughs in the near future.