Fiber Reinforced Plastics/Composites ›› 2019, Vol. 0 ›› Issue (7): 65-68.

• APPLICATION RESEARCH • Previous Articles     Next Articles

STUDY ON VARI FORMING PROCESS OF COMPOSITE FOAM SANDWICH STRUCTURE

DONG Qing-hai, DANG Lei, YUAN Chong-xin, LIU Chen-xiao   

  1. Beijing Aeronautic Science and Technology Research Institute of COMAC, Beijing 102211,China
  • Received:2018-11-13 Online:2019-07-28 Published:2019-07-28

Abstract: The characteristics of the foam sandwich structure of lightweight, high strength composite materials are widely used in aerospace ships rail transit wind power and other fields. This paper has carried out VARI molding process of preparation of sandwich structure, studies the double guide network note glue single bubble slot foam slot punch punch injecting process design such as the effect of the preparation of sandwich structure, technical requirements for different parts of the sandwich structure, provides the process forming in different ways, and introduces a kind of method which can directly observe the approach of resin flow state.

Key words: composites, PMI foam, VARI, sandwich structure, molding process

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