复合材料科学与工程 ›› 2023, Vol. 0 ›› Issue (5): 108-113.DOI: 10.19936/j.cnki.2096-8000.20230528.016

• 应用研究 • 上一篇    下一篇

大尺寸复合材料帽形长桁的固化变形补偿研究

卢政斌, 孙巍, 刘路, 吕秀雷, 韦宁   

  1. 连云港中复连众复合材料集团有限公司,连云港222000
  • 收稿日期:2022-12-23 出版日期:2023-05-28 发布日期:2023-08-22
  • 作者简介:卢政斌(1989—),男,硕士,工程师,主要从事复合材料制造技术方面的研究,lu.zhengbin@outlook.com。

Research on compensation of curing deformation of large size composite hat truss

LU Zhengbin, SUN Wei, LIU Lu, LÜ Xiulei, WEI Ning   

  1. Lianyungang Zhongfu Lianzhong Composites Group Co., Ltd, Lianyungang 222000, China
  • Received:2022-12-23 Online:2023-05-28 Published:2023-08-22

摘要: 针对热压罐成型工艺制造的复杂复合材料制件所广泛存在的回弹变形问题,以大尺寸复合材料帽形长桁结构试验件为例,采用多截面型面补偿法对分解后的固化变形量进行整体补偿,并对补偿过程涉及的热膨胀补偿基点选取、截面测量一致性、截面变形补偿方式及轴向扭曲变形补偿等关键技术问题进行探讨分析,最终提出针对有高精度型面要求复合材料制件的固化变形补偿方法,实现了大长径比复合材料零部件型面的高精度控制,型面偏差可控制在±0.30 mm以下,对研究复合材料固化回弹的型面补偿具有指导意义。

关键词: 复合材料, 热压罐, 固化变形, 补偿, 帽形结构

Abstract: The springback deformation problem widely exists in complex composite parts manufactured by autoclave, taking a large size cap shaped truss structure test piece as an example, a multi section profile compensation method is used to compensate the decomposed curing deformation, and the key technical issues involved in the compensation process, such as the selection of thermal expansion compensation base point, the consistency of section measurement, the section deformation compensation method, and the axial distortion compensation, are discussed and analyzed. Finally, a curing deformation compensation method for composite parts with high precision profile requirements is proposed, which realized the high-precision control of composite parts with large aspect ratio, and the profile deviation can be controlled below ± 0.30 mm, which is of guiding significance for the research on the profile compensation of composite part.

Key words: composites, autoclave, curing deformation, compensation, hat-section

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