Forming process for V-shaped composite material part with thickened bottom of training plane

A composite material and molding process technology, applied in household components, other household appliances, household appliances, etc., can solve the problems of high cost and the difficulty of forming V-shaped composite material parts with thickened bottom, achieve broad promotion value and reduce molding costs. Effect

Inactive Publication Date: 2021-06-11
AVIC GUIZHOU AIRPLANE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the above problems, the patent of the present invention provides a technical problem that overcomes the high cost of the au

Method used

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  • Forming process for V-shaped composite material part with thickened bottom of training plane

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Embodiment Construction

[0012] Embodiments of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0013] The molding process of the thickened V-shaped composite material parts at the bottom of the trainer includes the following steps:

[0014] (1) Clean up the formed silicone soft mold 2 and install it on the metal male mold 1 of the part to form a combined male mold;

[0015] (2) Spread release cloth or brush release agent on the combined male mold, then spread fiber cloth, vacuumize for exhaust and pre-compact every time 3 to 5 layers of fiber cloth are laid, until the laying reaches Desired thickness, forming a pre-composite material preform 3;

[0016] (3) Combine the demoulding-processed female mold 1 4 and female mold 2 5 and fasten them on the outer surface of the composite material prefabricated part 3 , the top is assembled in place with fixed connecting bolts, and the bottom is fixed on the base 6 of the metal male mold 1 with bolts...

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Abstract

The invention discloses a forming process of a V-shaped composite material part with a thickened bottom of a training plane. The forming process comprises the following steps: cleaning a formed silica gel soft mold and mounting the silica gel soft mold on a part metal male mold to form a combined male mold; laying demolding cloth or brushing a demolding agent on the combined male mold to form a pre-composite material prefabricated part; combining a first female mold and a second female mold subjected to demolding treatment and then arranging the combined first female mold and second female mold on the outer surface of the composite material prefabricated part in a buckling manner, assembling the top in place by using a fixed connecting bolt, and fixing the bottom on a base of the metal male mold by using bolts; laying a vacuum bag on the outer surface of a female mold formed by combining the first female mold and the second female mold, and fixing the edges of the vacuum bag to the edges of a base with sealing tape; connecting a vacuum pipeline with a vacuum pump, then placing the molds into a drying oven, and carrying out heating according to curing parameters of a resin matrix for curing. With the forming process of the V-shaped composite material part with the thickened bottom of the training plane, the qualified V-shaped composite material part can be produced, the forming cost of a composite material product can be greatly reduced, and the forming process has wide popularization value in the aspects of spaceflight and aviation.

Description

technical field [0001] The invention belongs to the technical field of composite material molding, and in particular relates to a low-cost molding process that uses a combined mold to ensure high-quality aerodynamic shape and inner cavity during the molding process of a V-shaped composite material part with a thickened bottom. Background technique [0002] With the development of science and technology, more and more heterogeneous structural parts gradually adopt composite materials instead of metal parts. At the same time, the development of composite materials tends to be integrated and large-scale. For aviation composite materials, in order to ensure their mechanical properties and corresponding functional characteristics, most products adopt the autoclave molding process, but the autoclave molding method needs to invest in equipment and some auxiliary equipment, so the investment is large, and the autoclave The high energy consumption keeps the manufacturing cost of comp...

Claims

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Application Information

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IPC IPC(8): B29C70/44B29L31/30
CPCB29C70/446B29L2031/3076
Inventor 杨爱清罗俊王焱
Owner AVIC GUIZHOU AIRPLANE
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