COMPOSITES SCIENCE AND ENGINEERING ›› 2022, Vol. 0 ›› Issue (8): 105-109.DOI: 10.19936/j.cnki.2096-8000.20220828.016

• APPLICATION RESEARCH • Previous Articles     Next Articles

Study on influencing factors of R-area porosity of composite C purlin

YUAN Chao1, LI Feng2, CHEN Jing1, QIU Qi-yan1   

  1. 1. AVIC Manufacturing Technology Institute, Beijing 101300, China;
    2. The Fifth Military Representative Office in Beijing, Beijing 101300, China
  • Received:2022-03-28 Online:2022-08-28 Published:2022-09-27

Abstract: According to the structure of composite C purlin, the influencing factors of R-area porosity of C purlin are studied through the process soft mold, pre-compaction operation and change of process parameters. The results show that the porosity in the R-area of C purlin can be significantly reduced by using the process soft mold in the curing process. To a certain extent, the stiffness of the soft mold can be improved and the porosity can be reduced, but when the stiffness of the soft mold reaches a certain degree, increasing the stiffness of the soft mold can not further reduce the porosity. Pre-compaction before curing can reduce the porosity of R-area of C purlin, and increasing the pressure and vacuum pumping operation can also reduce the porosity in the R-area.

Key words: composite, R-area, porosity

CLC Number: