A kind of plasma 3D rapid prototyping equipment and forming method
A molding equipment and plasma technology, applied in the field of plasma 3D rapid prototyping equipment and molding, can solve the problems of low laser power, large wire diameter, and the inability of laser to protect molten droplets.
Active Publication Date: 2018-06-29
中研碧诚(北京)科技有限公司
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Problems solved by technology
[0010] First, the laser cannot protect the droplet, and it is necessary to pass a protective gas at the wire feeder. The protective gas is easy to cool the droplet, which has an adverse effect on the solidification and layered formation of the droplet, resulting in low mechanical properties of the three-dimensional metal parts.
[0011] Second, the laser power is low and the diameter of the metal wire is large, so it is difficult to realize the rapid prototyping of ceramic and composite material parts
[0012] Third, due to the surface tension, the droplet cooling and solidification will produce circular shrinkage, resulting in the surface of the part is not smooth
Method used
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Embodiment 2
[0154] In this example, if Figure 7 As shown, the difference between the plasma casting rapid prototyping equipment used and the embodiment 1 is that the angle between the nozzle 13-5 and the central axis of the gun body 13-1 is 30°-45°.
[0155] In this way, after changing the direction of the plasma beam through the nozzle 13-5, the thermal load impact of the plasma jet on the anode nozzle 13-2 can be effectively reduced, and the anode ablation condition is improved.
[0156] In this embodiment, the structure, connection relationship and working principle of the rest of the plasma casting rapid prototyping equipment are the same as those in Embodiment 1.
[0157] In this embodiment, the plasma casting rapid prototyping method adopted is the same as that in Embodiment 1.
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Abstract
The invention discloses a plasma 3D rapid prototyping device and a prototyping method. The device consists of a monitoring system, a plasma beam processing system and a horizontal printing table for placing workpieces to be formed; the plasma beam processing system consists of a plasma generator, a power supply The air device, the wire feeding device for continuously sending out the processed wire and the printing position adjustment device; the monitoring system includes a position adjustment controller, a temperature detection unit, a distance detection unit and a printing distance adjustment controller, the temperature detection unit and the printing distance An adjustment controller forms a temperature control device; the method includes steps: 1. acquisition of a three-dimensional model of the workpiece to be formed and layered slice processing; 2. filling of the scanning path; 3. acquisition of the printing path; 4. printing layer by layer from bottom to top. The invention is reasonable in design, easy to operate, high in molding efficiency and good in use effect, does not need a closed molding chamber, and does not need a protective atmosphere or a vacuum environment, and the workpiece molding process is directly carried out in an atmospheric environment.
Description
technical field [0001] The invention belongs to the technical field of rapid prototyping, and in particular relates to a plasma 3D rapid prototyping device and a prototyping method. Background technique [0002] At present, the rapid prototyping technology of metal parts at home and abroad is mainly the selective laser melting rapid prototyping technology (Selective laser melting, SLM). For example, the US Patent No. US7047098 "PROCESS ANDDEVICE FOR PRODUCING A SHAPED BODY BY SELECTIVE LASER MELTING" describes in detail a selective laser melting forming method and equipment for manufacturing dense parts using a three-dimensional digital model. The Chinese invention patent "selective laser melting rapid prototyping equipment for direct manufacturing of large parts" with the publication number CN102266942A discloses a selective laser melting rapid prototyping equipment for direct manufacturing of large dense parts, which mainly includes laser arrays, optical system arrays, mol...
Claims
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IPC IPC(8): B29C64/20B29C64/112B22F3/00B28B1/00B33Y10/00B33Y30/00B22F10/20B22F12/50B22F12/90
Inventor华云峰
Owner中研碧诚(北京)科技有限公司