Application Analysis Of 3D Printing Technology in The Field Of Automotive Lightweighting

With the continuous development of 3D printing technology, its application in automotive parts is becoming increasingly widespread. Some people believe that this will be a huge breakthrough in the automotive industry and is likely to overturn the 'Four Great Craftsmanship'. And now, his dream is gradually becoming a reality. In the wave of Industry 4.0, 3D printing, as the core of this transformation, has once again been pushed to the forefront of the market in recent years and has been widely applied in various fields. As the leading industry in the manufacturing sector, the automotive and parts manufacturing industry is the main direction for the development of 3D printing technology. However, in the long run, lightweighting of vehicles is the trend, and in traditional vehicles, achieving energy conservation and emission reduction requires lightweighting of vehicles.
What is the impact of 3D printing on the automotive manufacturing industry compared to traditional production processes
In terms of design
3D printing can complete the manufacturing of a conceptual model in a matter of hours to days and use it for automotive styling design. Compared with traditional manual manufacturing methods, 3D printing can achieve more accurate conversion from drawings to entities, and greatly shorten the manufacturing cycle, thereby improving the manufacturing efficiency in the automotive design stage. Nowadays, many manufacturers are using 3D printing technology, such as BMW, Mercedes Benz, etc.
In terms of raw materials
3D printing technology can provide a variety of materials, mechanical properties, and precise functional prototypes, allowing manufacturers to identify problems early on, improve designs, and reduce the cost of errors.
Regarding Tools and Fixtures
3D printing provides a fast and accurate means for mold manufacturing, greatly reducing the cost and time of mold manufacturing. Therefore, automobile manufacturers have rapidly increased production capacity, improved efficiency, and enhanced quality.
At the same time, the use of 3D printing technology, such as soluble cores, carbon fiber winding, and injection molding tools, can help enterprises achieve rapid and small batch customization of molds, reduce production costs, and shorten product development cycles.
When producing finished parts
Through 3D printing, automobile manufacturing companies can achieve small batch customization and processing of parts, as well as manufacturing and manufacturing of complex shapes such as organic shapes, hollows, and negative drawing. 3D printing technology can achieve rapid manufacturing of complex shaped parts. If problems are found during the inspection process, only modifications need to be made to the 3D document for further printing.
In response to the rapid development trend of 3D printing in the current automotive industry, a study recently released by world-renowned research firm Frost&Sullivan shows that by 2025, the global automotive 3D printing market size will reach $4.3 billion. In fact, Ford, BMW, Lamborghini, Volkswagen, General Motors, Porsche, Honda, Chrysler, Mercedes Benz, Audi, and others are constantly exploring various possibilities of 3D printing technology.
In this era of rapid technological advancement, the discipline of "3D printing" has become a hot topic and has been widely applied in various industries. Among them, the manufacturing of automobiles and their parts is one of them. So far, not only have many components such as automobile undercarriage, interior, and exterior panels been 3D printed using ABS plastic and carbon fiber materials as basic materials. The printing of the "whole vehicle" has also undergone several displays, shortening printing time, improving technological content, and attracting global attention.
At present, the main methods of 3D printing include: material melting extrusion FDM, adhesive spraying 3 DP, material droplet spraying, powder spreading melting, direct energy deposition, thin plate stacking LOM, and photosensitive resin spreading. Among them, FDM technology, powder spreading melting technology, SLA technology and other technologies have been used in the automotive manufacturing industry, and are not limited to automotive components. Many companies have also begun to bravely print "whole" cars.
The advantages of 3D printing
Compared to traditional "subtractive manufacturing" (such as CNC), the advantage of 3D printing is that it can automatically construct parts of any shape through computer graphics data, eliminating the need for the development and mold making process of complex structural components. This shortens the development cycle of new products and saves a lot of manpower, financial resources, and time. Therefore, its manufacturing cost is lower, the development cycle is shorter, and the production efficiency is higher. In addition, in the early stages of design, using 3D printing technology to verify the assemblability of products can timely detect design errors, complex components, or the feasibility of prototype design.
The advantage of 3D printing lies in manufacturing complex, small, and difficult to manufacture components! In theory, the mass production speed and cost of 3D printing technology are not fast, but it can accumulate materials from scratch, break free from traditional process limitations, and achieve products of any shape. For example, if it is necessary to manufacture complex but highly accurate parts, or to manufacture hollow thin-walled parts, 3D printing technology can solve this problem. The most crucial point is that 3D printing allows the production of parts to be unrestricted by processes, relying more on ideas. The more novel and difficult it is to process parts through conventional methods, the more suitable they are for 3D printing. In this process, compared to traditional manufacturing methods, reducing costs is also the most attractive aspect of 3D printing for users.
Current stage application
Compared to the traditional automotive industry, the output of 3D printing technology is still relatively low, making it almost impossible to achieve large-scale production. In addition, due to the need to balance safety and other factors, it is difficult to balance product quality and cost, resulting in the current high manufacturing cost of 3D cars.
At present, 3D printing is more suitable for design and vehicle research and development, as well as for single piece and small batch production, such as the single piece manufacturing of the entire vehicle's sludge model, body, chassis, synchronizer, and rubber parts.
In terms of design, 3D printing technology has the characteristic of rapid prototyping, which enables car manufacturers to use it for research and development of body shape design. Compared to traditional manual manufacturing, 3D printing can achieve more accurate conversion from drawings to products, shorten the manufacturing cycle, and improve the manufacturing efficiency in the automotive design stage. Nowadays, many car manufacturers have applied 3D printing to Mercedes Benz's designs.
In terms of parts, 3D printing can also achieve rapid manufacturing of complex shaped products. In traditional automobile manufacturing, product development is usually a lengthy process. In the process of product development and testing, it is also necessary to manufacture some molds, which is both time-consuming and expensive. If there is a problem, modifying the components will also take a long time. 3D printing can achieve rapid manufacturing of complex shaped parts. If problems are found during the inspection process, only modifications need to be made to the 3D document to reprint it. It can be said that in the future, 3D printing can greatly reduce the manufacturing cost of parts and improve production efficiency.
The integration of 3D printing technology and CNC technology
Although 3D printing has successfully simplified traditional complex manufacturing processes and solved problems in the field of materials, there are still many urgent issues to be addressed in expanding its application scope. At the same time, it is also constrained and influenced by technological equipment, new materials, design software, quality and safety, as well as the public environment.
In addition, 3D printing cannot replace traditional CNC, as both have their own strengths. The former has higher accuracy than the latter, while the latter is more complex than CNC. As an important supplement to traditional processes, 3D printing's main function is not to replace, but to complement, so combining it with CNC technology is a good choice.