Among the many applications of 3D printing technology, the automotive industry is one of the earliest applications of 3D printing technology. As early as the development of 3D printing technology, some automobile manufacturers in developed countries in Europe and America began to apply 3D printing technology to the automotive R&D process, and have now been widely used in the research and development of automotive parts. Recently, we walked into an auto parts company in Shanghai to understand how 3D printing is applied to auto parts manufacturing and the impact and transformation of 3D printing on the auto industry. The auto parts company's main business is the production of sunroof systems, including ordinary sunroofs, panoramic sunroofs, and all-sky modules. It has excellent design, engineering and manufacturing capabilities. BMW, GM, Volkswagen and other famous brands are their customers. In order to make up for the defects in product development and verification, after 8 months of full investigation, they finally locked the latest FDM industrial grade equipment F123 series Stratasys F270 of Stratasys. In terms of materials, due to the good strength, flexibility, mechanical processing and high temperature resistance of ABS materials, and the rigorous resistance test of 10,000 times, it has become the plastic of choice for its R&D engineers, fully satisfying their strength. Claim. ABS auto parts manufactured by 3D printing technology In the actual environment, how is the experience of this 3D printing device? The responsible R&D engineer said that after day and night uninterrupted printing test, the current yield rate is as high as 90% or more, and the defective products are mainly caused by the engineers themselves. The technical parameter setting is not accurate, and the defective product rate caused by the device itself is almost zero. In terms of production efficiency, the printing of auto parts can be completed in an average of ten hours, the printing speed is basically satisfactory, and the printing cost is also within an acceptable range. From this perspective, 3D printing devices have evolved to a level of "reliable, consistent, predictable." 3D printing equipment StratasysF270 in the factory At present, the company's main application of 3D printing technology is concentrated in the research and development process, which is embodied in the form of 3D printing test model and functional prototype. The relevant person in charge said: "In the past, the research and development on the sunroof parts of the car was carried out by CNC machine tools or by hand, including cutting, drilling, bonding and other processes. It took time and effort, and even many samples needed to be processed outside, if the requirements were not met. It will be done again, and a lot of time and cost will be spent in this process. With 3D printers, we can do R&D by ourselves, no need for outsourcing, simple and fast, and can quickly modify the design and repeat a lot of iterations. While ensuring the quality of the prototype product design, the time required for product design and prototyping is greatly reduced, and the research and development efficiency is improved." According to reports, the company's self-printing costs are reduced by nearly 50% compared to the cost of outsourcing processing. In addition, because the procurement process of outsourcing processing is very complicated, after the whole process of manufacturing 3D printing is placed in the company, the time cost has obvious savings. Since "direct manufacturing" has strict requirements on the mechanical properties and smoothness of parts, the requirements for the level of 3D printing technology are high, and the corresponding cost is also high. At present, it is still more used for prototype verification of products in China. In addition, due to the limitation of the size of the printer, some large-size sunroof parts need to be broken into multiple parts, and the splicing is performed after the printing is completed. Compared with foreign countries, the proportion of domestic auto parts companies purchasing and using 3D printing equipment is not too high. However, due to factors such as its large scale, large investment in research and development, and long application of 3D printing technology, the automotive industry will occupy an important position in the application of 3D printing technology. The huge market size of the automotive industry provides a broad market space for 3D printing technology applications. We believe that in the future, 3D printing is expected to meet the requirements of direct automotive production applications in terms of material performance and cost, and to shift to higher value applications.
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