Forming method and forming tool for composite material J-shaped blank

Abstract

The invention relates to a forming method and forming tool for a composite material J-shaped blank. The method comprises: putting prepreg plane blanks on both sides in a vertical manner into the forming tool, corresponding to corresponding forming molds; laminating and sliding the upper sections of the two blanks on both sides towards opposite directions to form inverted L shapes, with upper corners being round; tightly attaching two inverted L-shaped structures back to back so that the upper sections on both sides are flush and symmetrical, forming the outer circles at corners of the upper sections into rounded voids, tightly attaching middle sections and lower sections of the structures to form a T-shaped structure; laminating and sliding the lower section of the T-shaped structure towards the left side to form a J-shaped structure, with the corner of the lower section being rounded; filling rounded voids formed at the corner of the upper section with a filling core material and compacting the material to make the rounded voids full; putting a base plate on the filling core material and the J-shaped structure; aligning edges of the base plate and the J-shaped structure; and compacting and forming to obtain the composite material J-shaped blank.

Description

technical field [0001] The invention relates to the technical field of composite material forming, in particular to a forming method and forming tooling of a composite material J-shaped blank. Background technique [0002] The composite material forming process is the basis and condition for the development of the composite material industry. With the broadening of the application field of composite materials, the composite material industry has developed rapidly, and new forming methods are constantly emerging. [0003] The existing forming method of J-shaped blank of composite material is to adopt manual method to lay blanks layer by layer on a mould, and then assemble the mold with the blanks. The specific method is to divide the composite J-shaped parts into four parts according to the designed configuration: reverse C-shaped blank, reverse Z-shaped blank, bottom plate and filling core material. The filling core material is prepared by special equipment or molds, and th...

AI Technical Summary

Problems solved by technology

[0006] The embodiment of the present invention provides a molding method and a molding tool for a composite material J-shaped blank. The prepreg planar blank is sequentially stacked and slipped into an inverted L-shaped structure, a T-shaped structure, and a J-shaped structure. Rounded corners are formed at the corners, which solves the problems of low molding efficiency, poor molding quality and low precision of existing composite J-shaped blanks

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