Study on Angular Contraction of Carbon Fiber Composite U-Shaped Component and Its Mould Compensation

YU Yonghong; LIU Zhaopeng; SHANG Yanghong; YANG Jingwen; LI Zeying

doi:10.16080/j.issn1671-833x.2018.13.096

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Study on Angular Contraction of Carbon Fiber Composite U-Shaped Component and Its Mould Compensation

更新时间：2025-10-30

- Study on Angular Contraction of Carbon Fiber Composite U-Shaped Component and Its Mould Compensation
- Aeronautical Manufacturing Technology Vol. 61, Issue 13, Pages: 96-100(2018)
- 作者机构：
  
  江苏恒神股份有限公司，丹阳,212314
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2018.13.096
  CLC：
- Published：2018
- 稿件说明：
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於永红，刘兆朋，尚仰宏，杨静文，李泽英. 碳纤维复合材料U形构件角度收缩及模具补偿研究[J]. 航空制造技术, 2018, 61(13): 96-100.

YU Yonghong, LIU Zhaopeng, SHANG Yanghong, YANG Jingwen, LI Zeying. Study on Angular Contraction of Carbon Fiber Composite U-Shaped Component and Its Mould Compensation. Aeronautical Manufacturing Technology, 2018, 61(13): 96-100.
於永红，刘兆朋，尚仰宏，杨静文，李泽英. 碳纤维复合材料U形构件角度收缩及模具补偿研究[J]. 航空制造技术, 2018, 61(13): 96-100. DOI： 10.16080/j.issn1671-833x.2018.13.096.

YU Yonghong, LIU Zhaopeng, SHANG Yanghong, YANG Jingwen, LI Zeying. Study on Angular Contraction of Carbon Fiber Composite U-Shaped Component and Its Mould Compensation. Aeronautical Manufacturing Technology, 2018, 61(13): 96-100. DOI： 10.16080/j.issn1671-833x.2018.13.096.

摘要

以两侧翼缘板高度不一致的碳纤维复合材料U 形构件为研究对象，分别利用热压罐成型工艺和VARIM工艺制备了该U 形构件，通过测量U 形构件的外形角度，来研究这两种工艺所制U 形构件的外形角度收缩情况，并根据试验结果优化设计了U 形构件模具的补偿角。研究表明，通过热压罐成型工艺和VARIM 工艺制备相同规格的U 形构件时，所制构件的外形角度收缩程度不同。在设计U 形构件模具的补偿角时，不能将不同成型工艺下的模具一概而论，要针对成型工艺的特点区别对待。此外，对于两侧翼缘板高度不一致的U形构件，不管通过何种工艺制备，高翼缘板侧的角度收缩程度比矮翼缘板侧的角度收缩程度小，在设计U 形构件模具的补偿角时不可忽略此特征。

Abstract

In this paper

U-shaped components of carbon fiber composite with two different-height flange slabs are studied. Autoclave moulding process and VARIM process are used to prepare the U-shaped components. The U-shaped component angular contraction conditions are studied by measuring their angle. And based on the measurement results

the mould compensation angle is optimized and redesigned. The angular contraction conditions of the U-shaped components made by the two above-mentioned processes are different. When designing the compensation angle of the U-shaped component mould

it is impossible to generalize all the moulds used in different molding processes and we should treat them differently according to the molding process characteristics. In addition

for the U-shaped components with two differentheight flange slabs

whichever kind of molding process they are made by

the degree of angular contraction on the high flange slab side is smaller than that of on the lower flange slab side. When designing the compensation angle of the U-shaped component mould

this distinction should not be neglected.

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