A carbon fiber/high toughness epoxy composite material grid rib forming method
A technology of grid rib and composite material, which is applied in the field of carbon fiber/high-toughness epoxy composite grid rib forming, can solve problems such as damage to grid rib strength, buckling at the nodes of grid rib, etc. , to achieve high molding efficiency, avoid pores, and the number of roots is stable and reliable.
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[0051] (1) The schematic diagram of the structure of the grid ribs to be formed is prepared as follows figure 1 As shown, its forming mold is as figure 2 As shown, the mold size is 440mm×440mm, the depth of the ribs is 20mm, the width is 10mm, and the vertical and horizontal ribs are equally spaced with 4 bars each. The distance between adjacent ribs and the edge of the mold to the side of the rib near the edge The same width is 80mm;
[0052] (2) According to the three-dimensional digital model of the grid ribs to be formed, the quantity and size of the prepreg blocks required for the grid ribs to be formed are accurately calculated for laying the A-type prepreg blocks of the transverse ribs Length 450mm, width 440mm, type B prepreg block length 80mm, width 440mm, for laying longitudinal ribs C type prepreg block length 450mm, width 440mm, D type prepreg block length 80mm, width 440mm, and Precise cutting with automatic cutting equipment;
[0053] (3) Preparation of tend...
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