Manufacturing method of composite S-shaped air intake channel cylinder based on 2.5 D weaving
A manufacturing method and technology of composite materials, applied in the field of composite material manufacturing, can solve problems such as low efficiency and high cost, achieve the effect of reducing manufacturing costs and broadening the scope of application
Active Publication Date: 2021-08-10
CHENGDU AIRCRAFT INDUSTRY GROUP
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Problems solved by technology
[0005] The present invention aims to solve the problems of low efficiency and high cost in the production and manufacture of air inlet cylinder parts in the prior art, and proposes a manufacturing method for S-shaped air inlet cylinder of composite material based on 2.5D weaving. The process combines the highly automated 2.5D reciprocating weaving technology with the low-cost resin vacuum infusion technology, which broadens the application range of related technologies and reduces the manufacturing cost of parts
Method used
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Embodiment 1
[0030] This embodiment is the most basic implementation.
[0031] This embodiment provides a 2.5D braided composite material S-shaped air inlet cylinder manufacturing method, including the following steps:
[0032] Step 1: Design the braided mandrel 2 according to the geometric shape of the S-shaped inlet cylinder, use the Centerline command in the Composites Design module in the CATIA software to extract the busbar of the braided locus of the inlet duct, and after the extraction is completed, transform the busbar through coordinate transformation to make it The coordinates of the processing end point coincide with the center point of the weaving plane in the simulation environment, and the corresponding tangent vector of the processing end point is perpendicular to the weaving plane. The "processing end point" refers to the end point of the busbar entering the 3 direction of the braiding machine; the "braiding plane" refers to the plane formed by the braiding yarn. The purpo...
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The invention discloses a manufacturing method of a composite S-shaped air intake channel cylinder based on 2.5 D weaving, and belongs to the field of forming and manufacturing of composites. The manufacturing method comprises the following steps that 1, a knitting core model is calculated according to the geometric shape of the S-shaped air intake channel cylinder, an air intake channel knitting track bus is extracted in CATIA software, control points are added on the bus according to process requirements, and measured to obtain coordinates of each control point and an included angle between a tangent vector of each control point and a corresponding tangent vector of a processing end point; 2, the obtained point location information is input into Catia V5 Delmia software for track collision simulation analysis, and a track planning program is obtained; 3, the track planning program is imported into a KUKA six-axis robot control system, the speed between control points in the knitting process is adjusted, and finally a knitted prefabricated body is obtained; and 4, post-treatment processes such as vacuum infusion are carried out on the obtained woven preform. According to the manufacturing method, the 2.5 D reciprocating weaving technology with the high automation degree is combined with the resin vacuum flow guide technology with the low cost, so that the application range of related technologies is widened, and the manufacturing cost of workpieces is reduced.
Description
technical field [0001] The invention relates to the technical field of composite material manufacturing, in particular to a method for manufacturing a composite material S-shaped air inlet cylinder based on 2.5D weaving. Background technique [0002] The hollow cylinder structure based on free generatrix sweeping is widely used in the intake and exhaust pipe structures in aerospace, automotive, and energy fields, such as automobile intake manifolds, exhaust ducts, and aircraft intake ducts. Typical pipe structure. This type of pipe structure requires high structural strength, and in recent years, continuous fiber reinforced composite materials are often used for manufacturing. [0003] Due to the complex shape and size of this type of pipe structure, conventional prepreg lay-up methods have the problems of low lay-up efficiency, discontinuous fibers, and high manufacturing costs. [0004] 2.5D weaving technology is a new type of prefabricated body forming technology. After...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B29C70/36B29B11/06B29L23/00
CPCB29C70/36B29B11/06B29L2023/22
Inventor 罗维黄当明陈贵勇黄海超杨龙英
Owner CHENGDU AIRCRAFT INDUSTRY GROUP