织物增强复合材料梁结构热校形工艺

发布时间：2018-04-10 11:15

本文选题：复合材料 + 热校形　；参考：《复合材料学报》2017年04期

【摘要】：本文借鉴金属零件热校形工艺的经验,利用复合材料在高温下的应力松弛现象,通过热校形工艺修正复合材料零件的形状。制造了碳纤维平纹织物/环氧复合材料L形梁、C形梁,通过自制的热校形模具,以实验方法研究热校形时间、热校形载荷对零件形状的影响,分析复合材料热校形工艺的可行性。研究表明,复合材料热校形工艺中零件变形的主要原因是零件在高温下发生应力松弛,其他因素可以忽略;热校形载荷、热校形时间都对热校形工艺的效果有重要影响。针对特定的复合材料结构,采用合理的热校形工艺过程能够有效地控制构件形状,方便零件的装配。
[Abstract]:In this paper, the shape of the composite material is modified by using the experience of the thermal calibration process for reference, and the stress relaxation phenomenon of the composite material at high temperature is used to correct the shape of the composite part.Carbon fiber plain fabric / epoxy composite L-shaped beam and C-shaped beam were manufactured. The influence of heat calibrating time and load on the shape of parts was studied by means of self-made hot calibrating die.The feasibility of thermal alignment of composite materials was analyzed.The results show that the main reason of deformation is the stress relaxation of the part at high temperature and the other factors can be neglected.According to the specific composite structure, adopting the reasonable hot alignment process can effectively control the component shape and facilitate the assembly of the parts.
【作者单位】：中航通用飞机有限责任公司;北京航空航天大学材料科学与工程学院;上海飞机制造有限公司航空制造技术研究所;
【基金】：民用飞机专项科研(MJZ-2014-F-13)
【分类号】：TB332

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