Researchers have been exploring the addition of continuous carbon fiber (CCF) raw materials, some of the advantages of shape memory polymers (SMPs) brings. On Chen Xinxin, Jiabao Xian, Zhaohan Xing, Xing and Liu Zhengxian for the mechanical properties of composite samples, in a recently published article, an overview of the continuous carbon fiber reinforced shape memory polymer composites, 3D printer-related research in the process. As scientists deformable material and return to its natural state according to user needs more and more fascinated, surface mount devices become the “hot spots academic research.” Especially with the 3D printer supplies to overcome the challenges of strength and rigidity. Although the continuous fibers have been shown to be more effective than a short fiber , but the molding process is complex, this need for better methods for manufacturing a continuous fiber-reinforced carbon composite material. Here, they will be printed as a solution FDM 3D: “complex 3D printer mainly by the motion platform, print nozzles, fiber transport mechanism and control system,” the researchers said. Compared with the traditional 3D printer, such a 3D printer nozzles may be simultaneously conveyed two channels from the resin and fibers, and extruded from the same nozzle.
3D printers Principle
Continuous carbon fiber reinforced principle of printing SMP composite material
In addition, the fiber feeding mechanism is designed by adjusting the speed of stepper motor at an appropriate speed continuously fed fiber, to avoid fibers break during printing. In a further study of the print temperature ● ● ● Print speed ● spacing angle ply portion of the printing samples of different process parameters : orthogonal experiment
Copyright Control Engineering
, the following factors were studied mechanical performance problems, researchers have found that an angle ply carbon element is a key factor. When they changed the angle plated layer Copyright Control Engineering , tensile strength and modulus of the sample is changed, showing along the fiber tension was 0 degrees, 90 degrees, but when it is vertical , which opens up the possibility of adhesion problems. The study also showed that , more appropriate mechanical properties at about 200 ℃, fast printing speed can affect the fibers and the resin “dip.” The authors also pointed out that due to changes in fiber content, the shadow of SMPsSound small. “Rapid manufacturing shape memory carbon fiber composite materials have potential applications in the aerospace field,” the researchers concluded.
shape memory properties of different fiber content of the test
While researchers around the world, engineers, designers, and users may face the potential of 3D printing has not been touched CONTROL ENGINEERING China Copyright , but many people are to further explore the next level, capable, 4D print from soft actuators to wood composite material according to environmental changes, and then to outstanding new metamaterials.