The principle of FDM technology 3D printer

The principle of molten FDM technology 3D printer product (FDM Fused DepositionModeling) molding method, the method of using filamentous material (paraffin, metal, plastic, low melting point alloy) as raw materials, using electric heating wire will be heated to slightly higher than the melting temperature (about 1 DEG C high melting point), under the control of the computer. X-Y nozzle plane motion, the melting of the coating material on the workbench, a layer of cross section is formed by cooling the workpiece, a layer after forming, spray a layer of high up, the next layer is coated, so deposited by forming a three-dimensional workpiece. FDM technology characteristics of the technology of small pollution, materials can be recycled for the formation of small workpiece. The following figure is the schematic diagram of FDM forming. Material: solid filamentous engineering plastics; properties of components: the equivalent of engineering plastic or wax; main use: plastic parts, casting wax, sample or model. Ps: the current domestic common personal 3D printer to use this technology in addition to the above 4 kinds of the most familiar with the technology, there are many techniques have also been applied, such as 3D printing technology, light shielding technology, direct shell method, direct sintering technology, holographic interferometry manufacturing here in detail. (in fact, I don't know much about it. Hee hee) printer technology advantages 3D printer technology rapid manufacturing 3D is a complex prototype or making the parts of effective means of concurrent engineering, can make the product design and mold production simultaneously, so as to improve the enterprise development efficiency, shorten the product design cycle, reduce the cost and risk of new product development, especially for smaller size. For special products. Integrated design and manufacturing integration CAD/CAM technology is always a difficulty now, the computer aided process planning (CAPP) in the present stage is not completely seamless because of CAD, and CAM, which is restricted to the informationization of the manufacturing industry has been one of the difficulties, and the rapid prototyping technology of integrated CAD, CAM, laser technology, numerical control technology, chemical engineering, materials engineering technology, the concept of the perfect integration of the design and manufacture of implementation. Fully reproduce the three-dimensional effect through rapid prototyping and manufacturing complete parts, 3D reproduction completely true, regardless of the outer surface of the profiled surface shaped hole or cavity, can form complete true and accurate, basically no longer need the aid of external equipment repair. Various kinds of materials so far, there are many types of equipment on the use of various 3D printer materials, resin, nylon, plastic, wax, paper and metal or ceramic powder, basically meet the needs of the vast majority of products on the mechanical properties of materials. Create a significant economic benefits with the traditional machining methods, the development of the cost savings of more than 10 times, the same, the rapid prototyping technology reduces the enterprise's product development cycle, which appears in the new product development process repeatedly revise design problems greatly reduced, also basically eliminates the mold modification problem, create economic the benefit is obviously. Wide application field