Composite material shell with inner flanging window, molding die and molding method
A composite material and shell molding technology, which is applied in household appliances, other household appliances, household components, etc., can solve the problems of small weight and high structural efficiency, achieve light weight, improve structural efficiency, and overcome the effect of poor surface accuracy
Active Publication Date: 2020-11-20
AEROSPACE RES INST OF MATERIAL & PROCESSING TECH +1
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Problems solved by technology
[0006] The technical solution of the present invention is to overcome the deficiencies of the prior art and provide a technical solution for the integrated molding of the inner flanging window and the rib-skin structure composite material, which solves the high-precision overall problem of the window with complex profiles , the composite structural parts produced have the characteristics of small weight and high structural efficiency
Method used
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Embodiment Construction
[0045] The present invention will be described in detail below in conjunction with the accompanying drawings and examples.
[0046] Such as figure 1 As shown, the molding mold for rib-skin structure composite shell with inner flanging window includes a core mold 1, a male mold 2, an outer female mold 3, an upper pressure ring 4 and a lower pressure ring 5. The male mold 2 is composed of a plurality of split units, the inner surface of each split unit is fixedly connected with the mandrel 1, and the split line 10 of two adjacent split units intersects with the radius 9 of the mandrel where it is located, as figure 2 shown. The split unit forms outward pressure during the thermal expansion process to ensure that pressure is applied to the window, ribs, skin and thickened areas to ensure the internal quality of the product. Consistent with the shape of the composite material component to be produced, the molding die described in the present invention can be used to manufacture...
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Abstract
The invention relates to a composite material casing containing inward-flanging windows, a forming die and a forming method. The whole casing is of a cylindrical or conical rib-skin structure, and ischaracterized in that the skins at the upper side and lower side of the structure are flanged inwards along the radial direction to form an upper end framework and a lower end framework of the casing;the side surface of the structure is provided with an even number of windows towards the interior of the cylinder, and the inner walls of windows are in a step shape; every two windows are symmetrically distributed along the center of circle at the circumference; the casing is of an integrated forming structure. The composite material casing has the advantages that the inward-flanging windows andthe composite material casing with the rib-skin structure are integrally formed, so that the weight of the composite material member is reduced, and the structure efficiency is improved; the composite material casing is suitable for manufacturing the composite material member of the rib-skin structure containing the inward-flanging windows; by adopting the integrated structure, the weight is light, the strength is high, and a microwave absorbing and transmitting unit can be formed after a functional material is introduced into the integrated window; by adopting the structure type, the wide application prospect in the fields of anti-counterfeiting, hiding and the like of aircrafts is realized.
Description
technical field [0001] The invention relates to a composite material shell with an inner flanging window, a molding die and a forming method, in particular to a molding technology of a rib-skin high temperature resistant composite material shell with an inner flanging window. Background technique [0002] Rib-skin structure composite materials have the characteristics of high structural efficiency, strong buckling resistance, high specific strength and specific stiffness, etc., showing unparalleled application prospects, and have been widely concerned and applied in the aerospace field. [0003] Processes such as process construction, inspection and maintenance, and equipment installation often occur in the use of rib-skin structure composite components. The implementation of these processes requires the design of one or more open operating windows in the skin-grid structure composite components. . The realization of the opening in the composite material component is usuall...
Claims
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IPC IPC(8): B29C70/32B29C70/34B29C70/54B29L31/30
CPCB29C70/32B29C70/34B29C70/54B29L2031/30B29L2031/3097
Inventor 沈登雄陈亮孙宏杰张建宝张来锁
Owner AEROSPACE RES INST OF MATERIAL & PROCESSING TECH