Positioning and punching method for composite material honeycomb sandwich part packing area
A technology of honeycomb interlayer and composite material, which is applied in the field of positioning and punching in the filling area of composite honeycomb interlayer parts, can solve problems such as positioning deviation, and achieve the effect of improving position accuracy, reducing rework and repair rate, and reducing positioning difficulty.
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[0009] A positioning and drilling method for the filler area of a composite honeycomb sandwich part is used to process through holes with a diameter of less than Φ50mm in the filler area. The method is provided with a tapered pin 2 on the theoretical punching position of the tooling 1 and only the tapered shape is exposed Part, pave the mold-surface prepreg 3 on the molding surface of the tool 1, and then cut off the convex mold-surface prepreg 3 according to the tapered part; place the honeycomb sandwich layer 4 with the tapered portion Part of the center is filled with filler, the range is larger than the diameter of the through hole; the non-molding surface prepreg 5 is laid, the whole is transferred and heated and pressurized to solidify; after the part is demolded, the taper hole formed at the bottom is drilled hole. The top angle of the tapered pin 2 is 90 degrees.
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