Study on Manufacture Technology for U-Shaped Sandwich Structure Composite Skin

WU Limin; YANG Yongzhong; ZHANG Long; CHEN Cui; YAN Leige; YU Zhongnan

doi:10.16080/j.issn1671-833x.2018.13.090

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Study on Manufacture Technology for U-Shaped Sandwich Structure Composite Skin

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- Study on Manufacture Technology for U-Shaped Sandwich Structure Composite Skin
- Aeronautical Manufacturing Technology Vol. 61, Issue 13, Pages: 90-95(2018)
- 作者机构：
  
  航空工业成都飞机工业（集团）有限责任公司,成都,610073
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2018.13.090
  CLC：
- Published：2018
- 稿件说明：
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吴利敏，杨永忠，张龙，陈翠，闫雷鸽，喻钟男. U形夹芯结构复合材料蒙皮制造技术研究[J]. 航空制造技术, 2018, 61(13): 90-95.

WU Limin, YANG Yongzhong, ZHANG Long, CHEN Cui, YAN Leige, YU Zhongnan. Study on Manufacture Technology for U-Shaped Sandwich Structure Composite Skin. Aeronautical Manufacturing Technology, 2018, 61(13): 90-95.
吴利敏，杨永忠，张龙，陈翠，闫雷鸽，喻钟男. U形夹芯结构复合材料蒙皮制造技术研究[J]. 航空制造技术, 2018, 61(13): 90-95. DOI： 10.16080/j.issn1671-833x.2018.13.090.

WU Limin, YANG Yongzhong, ZHANG Long, CHEN Cui, YAN Leige, YU Zhongnan. Study on Manufacture Technology for U-Shaped Sandwich Structure Composite Skin. Aeronautical Manufacturing Technology, 2018, 61(13): 90-95. DOI： 10.16080/j.issn1671-833x.2018.13.090.

摘要

针对U 形夹芯结构复合材料蒙皮在实际成型过程中存在的主要问题进行了研究，在蜂窝芯局部稳定辅助手工倒角、蜂窝芯外形控制、铺层交叉固持及零件外形检测等方面对成型工艺进行了改进，并对相应的改进进行了深入分析。研究结果表明：通过对蜂窝的局部稳定化处理，实现了过拉伸蜂窝芯手工修切过程中倒角表面质量的明显改善；通过对外形样板的优化设计，实现了过拉伸蜂窝芯外形尺寸的精度控制；通过对铺叠过程中铺层的交叉固持，避免了U 形夹芯结构复合材料蒙皮固化时的压力传递问题，有效解决了蜂窝芯收缩、铺层滑移皱褶及内部分层等问题；通过简易卡板、定力夹紧装置与塞尺方式相结合的方法，实现了零件状态下外形的高效测量。

Abstract

Technical problems existing in molding process of U-shaped sandwich structure composite skin was studied. Many aspects of molding process were ameliorated

which included honeycomb core stabilization process

honeycomb core shape control

cross interval grasped layer and shape detection of parts. The results showed that stabilization process for honeycomb core could make greatly improve the quality of honeycomb core chamfer of manual cut. The optimal design of shape models could great assistance in shape control of honeycomb core. The cross interval grasped layer could avoid pressure conduction problems existing in molding process

and effectively solve the problems of honeycomb shrinkage

layer folds and internal delamination. The association

which included simple snap-gauge

U-shaped clamping devices and feelers

realized the efficient measurement of the shape of the parts.

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