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ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2016, Vol. 37 ›› Issue (4): 1384-1392.doi: 10.7527/S1000-6893.2015.0151

• Material Engineering and Mechanical Manufacturing • Previous Articles     Next Articles

Effects of tows tension on automated fiber placement process

ZHAO Cong, XIAO Jun, WANG Xianfeng, LI Junfei, HUANG Wei   

  1. College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
  • Received:2015-03-26 Revised:2015-05-26 Online:2016-04-15 Published:2015-06-01
  • Supported by:

    National Basic Research Program of China (2014CB046501);Project Funded by the Priority Academic Program Development of Jiangsu Higher Education Institutions

Abstract:

To improve the forming quality of automated fiber placement process, the effects of tows tension on automated fiber placement process are studied by tows feeding and layup experiments. The results of tows feeding experiments turn out that the tows feeding precision and reliability is affected significantly by tension. In order to guarantee tows feeding precision and reliability, the value of tows tension should be kept uniformly and in a proper range. The layup experiment shows that inappropriate tows tension definitely reduces the process quality. By force analysis of the prepreg tow, the influences of tows tension on different layup conditions are discussed, the factors which influenced the proper value range of tows tension are discussed, and the formula of tows tension is derived and verified by layup experiments. Tows tension is one of the important parameter of automated fiber placement process. The value of tows tension should be promptly adjusted with mould surface, trajectory and other processing parameters to improve layup quality.

Key words: composites, automated fiber placement, processing parameters, tows tension, feeding precision, layup quality

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