A gasification mold preparation device and implementation method for regular arrangement of carbon fibers
A technology for preparing a device and carbon fiber, which is used in manufacturing, solid material additive processing, and additive processing, etc., can solve the problem of affecting the density and surface quality of the powder layer, and cannot effectively control the orientation of carbon fiber materials. Poor performance and other problems, to achieve the effect of improving the anisotropy of mechanical properties
Active Publication Date: 2020-06-19
XIANGTAN UNIV
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Problems solved by technology
However, the existing technologies and methods cannot effectively control the orientation arrangement of carbon fiber materials in the powder. Among the existing technical solutions for controlling the direction of carbon fibers, such as "a guide for fiber orientation in selective laser sintering of fiber composite powder" Device and implementation method" (CN105904732A) can control the arrangement of carbon fibers in different directions in the sintered layer of the sample, but in its actual operation, the fibers and powder are spread together, which easily leads to poor powder spreading performance, thus affecting the powder spreading. The density and surface quality of the powder layer, etc., and then manifested in the anisotropy of the mechanical properties of the part
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[0022] see Figure 1-5 , the present invention uses the gasification mold to allow the implementation method of the regular arrangement of carbon fibers, as follows:
[0023] (1) Through the coordinated movement of the three-direction electric screw slide table in the transport mechanism, the vacuum suction cup 15 is attached to the gasification mold 17, and air is introduced into the vacuum generator 14, so that the vacuum suction cup 15 sucks the gasification mold 17, Then the vacuum sucker 15 is moved to the top of the L-shaped workbench 20 by the conveying mechanism, the air is stopped from passing into the vacuum generator 14, the vacuum sucker 15 loses its adsorption capacity, the gasification mold 17 is placed on the L-shaped workbench 20, and the automatic glue coating machine is used to 13 Cover it with glue;
[0024] (2) Before the device starts to operate, manually fix the carbon fibers 3 on the carbon fiber placement table 21 one by one on the movable splint 1 wit...
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Abstract
The invention relates to a gasified pattern preparation device for carbon fiber regular arrangement and an implementation method thereof. The gasified pattern preparation device is characterized by comprising an L-shaped working table, a clamping plate moving mechanism, a carbon fiber placement table, a transport mechanism, an adsorption mechanism, an automatic gluing machine and a CO2 laser. Theimplementation method of the gasified pattern preparation device comprises the steps that a gasified pattern is placed on the L-shaped working table by the transport mechanism, carbon fiber filamentsare placed on the gasified pattern by the clamping plate moving mechanism and fixed through glue, then the carbon fiber filaments are cut through the CO2 laser, and carbon fibers sequenced in the specified direction can be obtained. According to the gasified pattern preparation device, the carbon fibers are fixed in sequence through the gasified pattern, the specified direction is ensured in the powder laying process, and the problem of anisotropism of mechanical properties of carbon fiber sintered parts can be effectively relieved.
Description
technical field [0001] The invention relates to the field of selective laser sintering, in particular to a method for regularly arranging carbon fibers by using a gasification mold. Background technique [0002] Selective laser sintering is a kind of additive manufacturing technology. Its working principle is as follows: firstly, a layer of powder material is laid on the workbench, the laser is controlled by computer, and the solid part of the powder is sintered according to the interface contour information, and then continuously circulated. , forming layers upon layers. This kind of forming method has simple manufacturing process, high flexibility, wide range of material selection, low material price, high utilization rate and fast forming speed, so it is widely used. [0003] At present, the main materials include plastic powder, nylon powder, metal powder, ceramic powder and composite powder. Among them, nylon powder, as a semi-crystalline polymer, has good comprehensi...
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IPC IPC(8): B29C64/153B29C64/20B33Y40/00
CPCB29C64/153B29C64/20B33Y40/00
Inventor 姜胜强段春艳
Owner XIANGTAN UNIV