高精度反射器蜂窝拼接工艺
作者:
作者单位:

1.上海复合材料科技有限公司,上海 201112;2.上海航天树脂基复合材料工程技术研究中心,上海 201112

作者简介:

邱保强,1986年出生,硕士,工程师,主要从事复合材料构件的胶接装配成型工艺工作。E-mail:qiubaoqiang302@126.com

通讯作者:

中图分类号:

TB33

基金项目:


Honeycomb Splicing Technology of High Precision Reflector
Author:
Affiliation:

1.Shanghai Composite Material Technology Co.,LTD.,Shanghai 201112;2.Shanghai Aerospace Resin Matrix Composite Engineering Technology Research Center,Shanghai 201112

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为解决反射器型面精度低的问题,通过对反射器的蜂窝拼接工艺特性进行理论分析,得到最优的拼接工艺,并采用该工艺进行试验验证。结果表明:正六边形蜂窝芯子拼接次数一般为3次或6次时,利于拼接后蜂窝结构对称,格型规整,降低面内刚度分布不均性,提高反射器型面精度;J-310A胶膜可作为高精度反射器的蜂窝拼接胶黏剂的首选,因其方便施工,固化后厚度尺寸小,大大降低不同材料的膨胀不匹配和刚度突变的影响,利于提高反射器型面精度;固定夹预加压后再与反射器共固化可以作为目前最优拼接工艺方法,此方法操作简便、成本较低;采用改进后的蜂窝拼接工艺制备的口径1.8 m反射器,其型面精度RMS=53 μm,相比传统的工艺提高了25 μm,且能满足设计要求。实验结果显示蜂窝合理的拼接方法可以有效避免泡沫胶与蜂窝的膨胀不匹配的影响,减少拼接处胶黏剂与蜂窝刚度突变的影响,提高蜂窝结构对称性,大幅提高反射器型面精度。采用此工艺方法拼接蜂窝还可以有效降低用胶量,减轻产品结构质量。

    Abstract:

    In order to solve the problem of low precision of the reflector profile,the optimal splicing process was obtained by theoretical analysis of the honeycomb splicing process of the reflector,and the process was tested and verified.The results show that the number of hexagonal honeycomb core splicing is generally 3 or 6 times,which is beneficial to symmetrical honeycomb structure,lattice regularly and reduction of the uneven distribution of in-plane stiffness,and improvement of the surface accuracy of reflector.J-310A film can be used as the first choice for the honeycomb splicing adhesive of high-precision reflector because of its convenient construction,the thin thickness after curing,which can greatly reduces the effects of expansion mismatch and sudden change of stiffness of different materials and be beneficial to improve the accuracy of the reflector profile.The pre-pressurization of the fixed clamp and the co-curing with the reflector can be used as the current optimal splicing process.The method is simple and low-cost.The 1.8 m diameter reflector prepared by the improved honeycomb splicing process has a profile accuracy of RMS=53 μm,which is 25 μm higher than the traditional process and meets the design requirements.The experimental results show that the reasonable splicing method of honeycomb can effectively avoid the influence of foam rubber and honeycomb expansion mismatch,reduce the influence of the agglomerate adhesive and honeycomb stiffness abrupt change,improve the symmetry of honeycomb structure and the accuracy of reflector profile greatly.The use of this process to splicing honeycombs can also effectively reduce the amount of glue used and reduce the structural quality of the product.

    参考文献
    相似文献
    引证文献
引用本文

邱保强,刘图远,张娟娟,魏海旭,王伟.高精度反射器蜂窝拼接工艺[J].宇航材料工艺,2019,49(5):63-67.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:2019-03-03
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2019-10-15
  • 出版日期:
第十一届航天复合材料成形与加工工艺技术中心交流会 征文通知

关闭