A carbon fiber front hood trim forming die and forming method

By using a dual-cavity sealing structure and a differential pressure linkage control mechanism, combined with temperature monitoring, the problems of high porosity and high equipment cost in the molding of carbon fiber front hoods have been solved, achieving low-cost, high-precision molding of carbon fiber front hoods and improving the internal density and surface quality of the products.

CN122500864APending Publication Date: 2026-08-04镇江澳盛轻量化汽车科技有限公司
0 Cites 0 Cited by

Patent Information

Application Number
CN202610862403.X
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-06-15
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

Existing carbon fiber hood molding processes suffer from defects such as high porosity, interlayer voids, and surface ripples and depressions, making it difficult to meet the high precision and high consistency mass production requirements of high-end automotive exterior parts. Furthermore, the equipment costs are high and the production economy is poor.

Method used

Employing a dual-cavity sealed molding structure and a differential pressure linkage control mechanism, the carbon fiber prepreg is efficiently molded through processes such as differential pressure venting, temperature-controlled compaction, and segmented curing, combined with a temperature monitoring component to regulate the differential pressure and temperature in real time.

Benefits of technology

It achieves low-porosity, high-precision, and high-stability molding under ordinary oven equipment, significantly improving the internal density and structural uniformity of products, reducing equipment investment and maintenance costs, and avoiding defects such as warping and cracking.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The application discloses a carbon fiber front machine cover decoration piece forming die and a forming method, and relates to the technical field of carbon fiber forming die and forming method. The forming base is sequentially provided with two independent sealing cavities from inside to outside; the two independent sealing cavities are respectively an independent part forming vacuum cavity and a buffer pressure stabilizing vacuum cavity; the differential pressure linkage control mechanism matches the rheological characteristics of carbon fiber prepreg resin, and independently controls vacuumizing, pressure maintaining and pressure releasing of the part forming vacuum cavity and the buffer pressure stabilizing vacuum cavity according to forming process stages, so as to adapt to the forming process of differential pressure exhaust, temperature control compaction and segmented curing. The whole forming die and process can be completely adapted to conventional ordinary oven equipment, and the dependence on high-end autoclave equipment is abandoned. Meanwhile, through structural innovation and process fine control, the short board of poor quality and low yield of traditional oven forming process is solved, and high-precision and low-defect forming effect under low-cost production conditions is realized.
Need to check novelty before this filing date? Find Prior Art