热隔膜工艺温度与成型速率对C 形复合材料成型质量的影响

复合材料科学与工程 ›› 2013, Vol. 0 ›› Issue (5): 45-50.

热隔膜工艺温度与成型速率对C 形复合材料成型质量的影响

边旭霞, 顾轶卓^*, 孙晶, 李敏

北京航空航天大学材料科学与工程学院,北京 100191

收稿日期:2012-11-14 出版日期:2013-08-28 发布日期:2022-03-15
通讯作者: 顾轶卓(1979-),男,副教授,硕士生导师,主要从事复合材料方面的研究,benniegu@buaa.edu.cn。
作者简介:边旭霞(1988-),女,硕士研究生,主要从事复合材料方面的研究。本文作者还有张冬梅和张佐光。
基金资助:
国家商用飞机制造工程技术研究中心创新基金(SAMC12-JS-15-010)

EFFECTS OF TEMPERATURE AND MOLDING RATE IN HOT DIAPHRAGM FORMING PROCESS ON THE FORMING QUALITY OF C-SHAPED COMPOSITE

BIAN Xu-xia, GU Yi-zhuo^*, SUN Jing, LI Min

School of Materials Science and Engineering,Beihang University,Beijing 100191,China

Received:2012-11-14 Online:2013-08-28 Published:2022-03-15

摘要/Abstract

摘要： 利用自制的热隔膜成型设备制备C 形结构碳纤维/环氧预浸料预成型体,通过对预成型体的厚度、缺陷进行表征,考察了工艺温度、成型速率对C 形预成型体成型质量和预浸料层间摩擦阻力的影响,分析了预浸料摩擦滑移特性与热隔膜工艺成型质量的关联性。结果表明:通过提高工艺温度、降低抽真空速率可以降低预浸料层间摩擦阻力,得到成型质量较好的C形预成型体。热隔膜成型工艺条件对预浸料层间摩擦滑移特性有重要影响,摩擦阻力可以作为优化热隔膜成型工艺参数的重要依据。

关键词: 热固性复合材料, 热隔膜成型工艺, C 形结构, 预浸料

Abstract: In this study,the effects of processing temperature and molding rate on the forming quality of Cshaped carbon fiber /epoxy resin prepreg stack during hot diaphragm forming process were investigated. C-shaped prepreg preforms were produced using a home-made hot diaphragm forming equipment. The thickness variations of the preforms and the manufacturing defects after diaphragm forming process were evaluated. Furthermore,interlaminar friction behavior of the prepreg stack was experimentally analyzed for showing the importance of the processing parameters. The results show that the C-shaped prepreg preforms with good forming quality can be achieved through increasing processing temperature and reducing vacuum applying rate,which obviously promote prepreg interlaminar slipping process. The process temperature and molding rate in hot diaphragm forming process strongly influence prepreg interply frictional force,and the interlaminar frictional force can be taken as a key parameter for processing parameter optimization.

Key words: thermosetting composite, hot diaphragm forming process, C-shaped, prepreg

中图分类号:

TB332

边旭霞, 顾轶卓, 孙晶, 李敏. 热隔膜工艺温度与成型速率对C 形复合材料成型质量的影响[J]. 复合材料科学与工程, 2013, 0(5): 45-50.

BIAN Xu-xia, GU Yi-zhuo, SUN Jing, LI Min. EFFECTS OF TEMPERATURE AND MOLDING RATE IN HOT DIAPHRAGM FORMING PROCESS ON THE FORMING QUALITY OF C-SHAPED COMPOSITE[J]. COMPOSITES SCIENCE AND ENGINEERING, 2013, 0(5): 45-50.

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