“In recent years, 3D printing technology has gradually become a hot direction in the technical fields of advanced equipment manufacturing, structural design and new materials. Developed countries such as Europe and the United States have included it in their national development strategies. As early as the “National Additive Manufacturing (3D Printing) Industry Development Promotion Plan (2015-2016)” released in 2015, my country has clearly included 3D printing in the national strategic level. Since then, relevant departments in various regions have issued policies to promote the research and development, product manufacturing and practical application of 3D printing technology.
In recent years, 3D printing technology has gradually become a hot direction in the technical fields of advanced equipment manufacturing, structural design and new materials. Developed countries such as Europe and the United States have included it in their national development strategies. As early as the “National Additive Manufacturing (3D Printing) Industry Development Promotion Plan (2015-2016)” released in 2015, my country has clearly included 3D printing in the national strategic level. Since then, relevant departments in various regions have issued policies to promote the research and development, product manufacturing and practical application of 3D printing technology.
The internal quality, grain structure, microstructure and performance of the components manufactured by metal 3D printing technology are not only not affected by the size, wall thickness, and position of the parts, but also in the 3D printing process of layer-by-layer melting and layer-by-layer solidification of metal components. In the 3D printing alloy molten pool, the metal crystallization conditions such as the melt metallurgical state, solidification cooling rate, temperature gradient, etc.
At the same time, metal 3D printing technology can realize active control of the shape, chemical composition, grain size and orientation and microstructure of materials in different parts of the part, give full play to the performance advantages of different materials, and learn from each other’s strengths and weaknesses to “design on demand” of different materials. ”, so that the specific metal material components have special properties that a single material cannot have, thus showing better ease of use.
Take petrochemical equipment manufacturing as an example, because 3D printing can better meet the needs of short-time consumption, high-precision, and complex components, it is used by more and more petrochemical industry practitioners. Specifically, petrochemical equipment developers use 3D printing technology, and with the help of computers, graphic design software and other equipment and tools, they can modify the sample drawings of petrochemical equipment, and can also see the three-dimensional model of the entire petrochemical equipment. Improvements are made where it is unreasonable.
On the assembly line, jigs made by 3D printing are mostly used to fix products on the pad printing industrial production line. Thanks to the advantages of customization, a structure that is more suitable for the part can be designed. In addition, support parts for auxiliary processing can be designed to ensure the accuracy of the processing process. For companies that need to use fixtures, 3D printing technology is used to customize fixtures of various shapes and sizes, with low cost, high efficiency, good effect, and more suitable applications.
3D printing tooling and inspection tools have gradually become a major focus of 3D printing in the field of industrial equipment manufacturing. In product quality inspection, if each workpiece is measured with a steel ruler and a vernier caliper to measure the size of each position, the speed will be very slow and the scanning efficiency will be affected. The use of inspection tools can quickly and concisely complete the inspection work, and provide standard measurement methods to obtain accurate data. Using 3D printing, the edges and corners can be processed more closely, and the situation where the hole structure is not in place can be avoided as much as possible, reducing the probability of workpiece deformation.
After years of development, the 3D printing market has gradually expanded. According to the “Wohlers Report 2020” data, the product and service revenue of the global additive manufacturing (AM) industry in 2019 was 11.867 billion US dollars (about 84.2 billion yuan), an increase of 21.2% over 2018. Compared with 2018, the growth rate has slowed down. In the future, with the continuous improvement of product manufacturing refinement and customization requirements in various industries, the application scenarios of 3D printing are expected to be further expanded, and the application value will also be diversified.
China’s 3D printing market is showing a good momentum of development, gradually realizing commercialization, and the application of technical equipment in casting, medicine, product design, rapid mold manufacturing and other fields is becoming more and more deeply, which is undoubtedly gratifying. Compared with the world, the core technology research and development strength of China’s 3D printing market is weak, the material resources are single, the professional talents are relatively scarce, and the overall size of the industry is relatively small.
Although the future development of the industry is full of opportunities and challenges, 3D printing creates new possibilities for enterprises to complete intelligent and digital transformation by producing end products, developing new applications, applying automated post-processing and artificial intelligence technologies. Paying attention to the upgrade of 3D printing technology and new trends in product development will become the active choice of enterprises under the background of the times.
The Links: PM15RSH120 2MBI300N-060