Five pitfalls of 3D printing

Audiences who have watched the new 007 series movie 'Death by the Sky' will definitely be amazed at the plot of the 1960 Aston Martin DB5 car that was blown to pieces. In fact, it was not the luxury car worth 4.6 million dollars that was tormented. The Aston Martin was born through 3D printing technology. People first made the steel body frame, and then input all the part data into the 3D printer through CAD. , And then used PMMA plastic to print out parts such as doors, roofs, fenders, etc. Finally, 3 car models were completed by assembling all 18 individual components. Except for the one that was sacrificed in the movie, one of the remaining two has been auctioned by Christie’s auction house. The price is as high as US$99,041, exceeding 50% of the auction house’s estimate.　　Some people describe 3D printing technology as working with other digital production modes to promote the realization of the third industrial revolution characterized by intelligence'. However, Liu Zhibiao, member of the National Committee of the Chinese People's Political Consultative Conference and president of the Jiangsu Academy of Social Sciences, reminded that in the consumer era when personalized demand gradually dominates, the industrialization of 3D printing will obviously have a huge impact on a manufacturing country like China; The printer-based emerging intelligent revolution, if the past practices are continued, will cause the emerging growth industries to decline. Liu Zhibiao analyzed the five bad practices in the past: one is not based on self-use but wants to export from the beginning; the second is to fight for cheap labor in the name of high-tech; the third is to rush forward without the necessary barriers to entry; It is to subsidize producers rather than consumers, and it cannot stimulate the expansion of consumption and use markets. Fifth, it is not based on the transformation of traditional industries and the coordinated development with them. If the practice remains unchanged, the serious development malformations that have occurred in emerging industries such as photovoltaics will inevitably be reproduced in strategic emerging industries such as 3D printers.'　　 Liu Zhibiao believes that the industrial policy of strategic emerging industries should not only specify the types of industries that are supported, but also clearly point out what the government does not encourage development, where are the thresholds, and strictly restrict development. In order to avoid the old path of over-expansion and disorderly competition in the previous round of emerging industry development, it is necessary not only to clearly support the equipment research and development and equipment industry, but also to clearly set the entry threshold for the manufacturing enterprises in the general processing link and install high-voltage lines. Connect with high-voltage electricity'. He pointed out the lesson of my country’s photovoltaic industry: In addition to insufficient demand and overcapacity, Chinese companies mainly focus on the processing of solar energy products, purchasing large amounts of capital-intensive foreign special equipment to expand production capacity, and foreign equipment manufacturers have earned the main part of the industry’s boom phase. profit. The development of the 3D printing industry must insist on supporting investment in core products in the industrial chain. There will be no future if they rely solely on the purchase of foreign equipment for low-end processing. '　　He also emphasized the need to avoid manufacturing'Enterprises will only build' and will not manufactureFrom the perspective of the industrial chain, we can consider strategically classifying the core technology of 3D printers into information technology, precision machinery, materials science, etc., and support several key enterprises among them, encouraging them to occupy the high ground of industrial technology innovation as soon as possible. '　　 Liu Zhibiao is very worried that the 3D printing industry will evolve into the government's image project in the country.' Enclosure planning in various places is rushing forward. He believes that there are two main development directions for 3D printers: one is high value-added core printersu0026rdquo; equipment products; the other is new materials for special consumables. From the perspective of market structure characteristics, we are now in an active period of industry innovation, and there should be only a few companies that can develop in each link of the industry chain. It is necessary to avoid government competition in various administrative regions and excessive competition; the recommended focus is Several links in the industry chain support several companies with strong teams and solid research and development foundations to become the forerunners in the development of this industry. u0026rdquo; (The above is edited by laser cutting machine from the Internet, see www.gnlaser.com for details)