Advanced Manufacture Technology Center, China Academy of Machinery Science & Technology

Advanced Manufacture Technology Center China Academy Machinery Science and Technology

Zhilin Lin

Feng Liu

Zhongde Shan

Xiaoli Dong

Liu Li

A three-dimensional weave forming equipment for composites mainly comprises a main body portion and a specific numerical control software for three-dimensional weaving process. The main body portion comprises a movement system for a controllable digital template, a movement system for a pickup device and a movement control system for a guiding sleeve. Compared with the existing three-dimensional weave-forming equipment, the three-dimensional weave-forming equipment for composites is highly automatic. Products made by the equipment are smooth at inner and outer surfaces, and have advantages of high precise dimension, low porosity and stable performance. And it can be reinforced partially and have directional property according to requirements of design. So problems of simple cross-section of the finished part and too much pores in the products, which manufactured by the existing three-dimensional weave forming equipment are solved. The three-dimensional weave forming equipment for composites is especially suitable for producing products with large dimension and complex external structure.

Three-dimensional weave-forming equipment for composites

The invention relates to a three-dimensional weave-forming method for composites, comprising the following steps: dividing the CAD model into layers according to the structure of a component, designing by layers and optimizing weaving paths; disposing weaving guiding poles on a controllable digital layout template according to preset rules and intervals; In the direction Z, passing guiding sleeves through the hollow guiding poles and evaginating the guiding sleeves, and then fixing the guiding sleeves onto the controllable digital layout template; selecting filaments to weave; after the weaving of one layer thickness is finished, descending the template in the thickness by one layer to drive the guiding sleeves to expose outside a preset distance to form a new layer of layout template; weaving layer by layer until the whole component is finished; dismounting the component and sewing; and dipping the component in resin and finishing the manufacture of the part. According to the method, the rapid prototyping technology and the weaving technology are organically combined, so that the three-dimensional weaving of components with complex function is realized. Simultaneously, the preparation of composite and the forming of components are integrated, so that the manufacture of functional components with complex structure is realized.

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Beijing, China

Zhilin Lin