Low material variety and high price
Because of the special nature of his materials and processes, the current use of 3D printing technology is still at the prototype stage of automotive parts, which is the most advantageous. However, these are still quite different from the types of materials actually used in cars. Therefore, we generally look at structural components. In addition, it is gratifying to note that on February 28, 2016, the Ministry of Industry and Information Technology, the National Development and Reform Commission, and the Ministry of Finance formulated the “National Additive Manufacturing Industry Development Promotion Plan (2015-2016)” to propose 3D. Printing and automotive, aerospace, biomedical, and other important subdivided areas are categorized into cross-industry alliances to break through a batch of additive manufacturing special materials. By 2016, we will realize the independent production of special materials such as titanium alloys, high-strength steels, and some high-temperature-resistant high-strength engineering plastics to meet the development needs of the industry. This is undoubtedly a boost for the development of 3D printing materials.
In addition to the few types, the other obstacle to 3D printing in terms of materials is cost. Material cost is a relative concept. In the case of very small batches, the cost of the mold is more than that of a single product, so that its One-piece products will be more expensive, but if there is no such problem with 3D printing, the cost of printing a single-piece or small-batch product in 3D is relatively inexpensive. And such batches as hundreds of thousands of cars per year, if you use 3D printing, the current cost is uneconomical. Therefore, we understand that this applies him to a personalized and small and complex structural part, that is, a unique product, not a product of a batch product.