The application scope of UV curing 3DP is very wide, such as making model room model, mobile phone model, toy model, animation model, jewelry model, car model, shoe model, teaching aid model, etc. Generally speaking, all CAD drawings that can be made on a computer can be made into the same solid model through a three-dimensional printer.
The rapid emergency repair of aircraft structure battle damage is an important way to quickly restore the integrity of aircraft and ensure the quantity advantage of equipment. Under war conditions, aircraft structural damage accounts for about 90% of all damage events. The traditional repair technology can not meet the needs of modern aircraft damage repair. In recent years, our army’s newly developed universal, convenient and fast aircraft battle injury emergency repair technology can meet the repair needs of multiple aircraft types and different materials. Portable rapid repair device can further shorten the time of aircraft combat damage repair, and adapt to the more and more mature light curing rapid repair technology of aircraft combat damage.
Ceramic UV curing rapid prototyping technology is to add ceramic powder to the UV curing resin solution, disperse the ceramic powder evenly in the solution through high-speed stirring, and prepare ceramic slurry with high solid content and low viscosity. Then, the ceramic slurry is directly UV cured layer by layer on the UV curing rapid prototyping machine, and the green ceramic parts are obtained by superposition. Finally, the ceramic parts are obtained through post-treatment processes such as drying, degreasing and sintering.
The light curing rapid prototyping technology provides a new method for human organ models that cannot be made or are difficult to be made by traditional methods. The light curing prototyping technology based on CT images is an effective method for prosthesis making, complex surgical planning, oral and maxillofacial repair. At present, tissue engineering, a new interdisciplinary subject emerging in the frontier field of life science research, is a very promising application field of UV curing technology. SLA technology can be used to produce bioactive artificial bone scaffolds. The scaffolds have good mechanical properties and biocompatibility with cells, and are conducive to the adhesion and growth of osteoblasts. The tissue engineering scaffolds made by SLA technology were implanted with mouse osteoblasts, and the effects of cell implantation and adhesion were very good. In addition, the combination of light curing rapid prototyping technology and freeze-drying technology can produce liver tissue engineering scaffolds containing a variety of complex microstructures. The scaffolds system can ensure the orderly distribution of a variety of liver cells, and can provide a reference for the simulation of the microstructure of tissue engineering liver scaffolds.
3D printing and UV curing – resin of the future
On the basis of better printing stability, UV curable solid resin materials are developing towards the direction of high curing speed, low shrinkage and low warpage, so as to ensure the forming accuracy of parts, and have better mechanical properties, especially impact and flexibility, so that they can be directly used and tested. In addition, various functional materials will be developed, such as conductive, magnetic, flame-retardant, high-temperature resistant UV curable solid resins and UV elastic resin materials. The UV curing support material should also continue to improve its printing stability. The nozzle can print at any time without protection. At the same time, the support material is easier to remove, and the completely water-soluble support material will become a reality.
3D printing and UV curing- μ- SL Technology
Low light curing rapid prototyping μ- SL (micro stereolithography) is a new rapid prototyping technology based on the traditional SLA technology, which is proposed for the manufacturing needs of micro mechanical structures. This technology has been put forward as early as the 1980s. After nearly 20 years of hard research, it has been applied to a certain extent. Currently proposed and implemented μ- SL technology mainly includes μ- SL technology and two-photon absorption based μ- SL technology can improve the forming accuracy of traditional SLA technology to submicron level, and open up the application of rapid prototyping technology in micromachining. However, the vast majority of μ- The cost of SL manufacturing technology is quite high, so most of them are still in the laboratory stage, and there is still a certain distance from the realization of large-scale industrial production.
Main trends of 3D printing technology in the future
With the further development and maturity of intelligent manufacturing, new information technology, control technology, material technology and so on have been widely used in the manufacturing field, and 3D printing technology will also be pushed to a higher level. In the future, the development of 3D printing technology will reflect the main trends of precision, intelligence, generalization and convenience.
Improve the speed, efficiency and accuracy of 3D printing, develop the process methods of parallel printing, continuous printing, large-scale printing and multi-material printing, and improve the surface quality, mechanical and physical properties of finished products, so as to realize direct product-oriented manufacturing.
The development of more diverse 3D printing materials, such as smart materials, functionally gradient materials, nano materials, heterogeneous materials and composite materials, especially the direct metal forming technology, medical and biological material forming technology, may become a hot spot in the application research and application of 3D printing technology in the future.
The volume of 3D printer is miniaturized and desktop, the cost is lower, the operation is simpler, and it is more suitable for the needs of distributed production, integration of design and manufacturing, and daily household applications.
Software integration realizes the integration of cad/capp/rp, enables the seamless connection between design software and production control software, and realizes the main trend of the future development of 3D printing technology under the direct networking control of designers – remote online manufacturing.
3D printing technology industrialization has a long way to go
In 2011, the global 3D printing market was US $1.71 billion, and the commodities produced by 3D printing technology accounted for 0.02% of the total global manufacturing output in 2011. In 2012, it increased by 25% to US $2.14 billion, and is expected to reach US $3.7 billion in 2015. Although various signs show that the era of digital manufacturing is slowly approaching, there is still a way to go for 3D printing, which is hot again in the market, before industrial scale applications even fly into the homes of ordinary people.
Post time: Jun-21-2022
