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China foundry industry faces transition pressure 3D printing or critical breakthrough

June 12,2017      views

China's foundry industry is facing the pressure of transformation and upgrading, by 2020, the foundry will be reduced to 15,000 homes. 3D Printing will play its unique role in it. 3D printing can ensure that the overall quality of the mold is better than the traditional casting method, and greatly improve the yield and surface finish of castings, reduce the casting defect and scrap rate, thus saving more cost.

China's foundry industry is facing the pressure of transformation and upgrading, the casting association forecast to 2020 Foundry enterprises will be reduced to 15,000, casting total production reached 55 million tons, casting production value of about 700 billion yuan. Casting enterprises (about 4,500), which account for 30% of the total number of enterprises, will produce more than 80% of the total casting output.

and 3D printing will play its unique role in it. 3D printing technology can quickly transform design ideas into physical, especially in the production of complex structures, to facilitate the effective communication between designers and customers and enterprise teams, help early design validation, and reduce the cost of errors.

3D printing equipment is used to increase the manufacturing technology, that is, the use of material "layered manufacturing, layered accumulation" method of manufacturing solid parts, its comprehensive computer graphics processing, digital information control, laser technology, mechanical and electrical technology and materials technology, and many other High-tech advantages, can be used to improve product manufacturing links, greatly shorten the research and development and production process.

Among the many 3D printing technologies, three-dimensional printing technology (referred to as 3DP technology) has the characteristics of fast forming speed and low price of forming materials, and the forming process does not need support, and the extra powder material is easy to remove, especially suitable for the complex prototype of inner cavity, which is most suitable for combining with foundry technology to realize industrialization application.

Many enterprises can import high-performance large-scale 3D printing equipment, 3D printing technology in the foundry industry application research. The equipment uses the 3DP craft, mainly uses in the casting sand type Direct printing forming, causes the traditional casting mold manufacture, the modelling, the core, the close type and so on 4 processes all by the 3D printing one procedure replaces.

Traditional casting is not only time-consuming and labor-saving, but also high rate of scrap, it is difficult to guarantee shape integrity and compactness.

The modern 3D printing technology can ensure that the mold shape is identical, the appearance is flat, the density is high, the appearance and the overall quality is superior to the traditional casting way, greatly enhances the casting yield, surface finish, reduces the casting flaw, the scrap rate, thus saves the more cost.

In the same way, with high difficulty and complex shape of the larger castings engine cylinder as an example, you can see that the finished product is neat, reducing the sand, sand holes and other casting problems.


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