Effects of Automated Fiber Placement Heating Uniformity and Temperature on Mechanical Properties of Composite

DENG Linwei; PU Yuanzhu; ZHANG Shaoqiu; YANG Heng

doi:10.16080/j.issn1671-833x.2021.09.085

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Effects of Automated Fiber Placement Heating Uniformity and Temperature on Mechanical Properties of Composite

更新时间：2025-10-30

- Effects of Automated Fiber Placement Heating Uniformity and Temperature on Mechanical Properties of Composite
- Aeronautical Manufacturing Technology Vol. 64, Issue 9, Pages: 85-92(2021)
- 作者机构：
  
  1. 北京卫星制造厂有限公司,北京,100094
  2. 陕西普立通复材科技有限公司,渭南,714000
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671-833x.2021.09.085
  CLC：
- Published：2021
- 稿件说明：
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邓琳蔚，普远瞩，张少秋，杨恒，韩妙玲. 自动铺丝加热均匀性及其对复合材料性能的影响[J]. 航空制造技术, 2021, 64(9): 85-92.

DENG Linwei,PU Yuanzhu,ZHANG Shaoqiu,YANG Heng,HAN Miaoling. Effects of Automated Fiber Placement Heating Uniformity and Temperature on Mechanical Properties of Composite. 航空制造技术, 2021, 64(9): 85-92.
邓琳蔚，普远瞩，张少秋，杨恒，韩妙玲. 自动铺丝加热均匀性及其对复合材料性能的影响[J]. 航空制造技术, 2021, 64(9): 85-92. DOI： 10.16080/j.issn1671-833x.2021.09.085.

DENG Linwei,PU Yuanzhu,ZHANG Shaoqiu,YANG Heng,HAN Miaoling. Effects of Automated Fiber Placement Heating Uniformity and Temperature on Mechanical Properties of Composite. 航空制造技术, 2021, 64(9): 85-92. DOI： 10.16080/j.issn1671-833x.2021.09.085.

摘要

自动铺丝技术是目前最先进的高性能航空航天复合材料构件成型工艺之一，为了进一步研究复合材料自动铺丝工艺中加热温度对复合材料性能的影响规律，建立了自动铺丝过程中的红外加热系统传热模型，基于该模型对自动铺丝工艺温度控制方法和铺层中温度分布均匀性进行了分析，并通过试验研究了加热温度对复合材料性能的影响。研究结果表明铺层加热温度是影响复合材料性能的关键工艺参数，当设定加热温度为 35℃时，论文中所制作的复合材料试件的拉伸强度、弯曲强度和层间剪切强度分别提高了 20.9%、12.4% 和 4.9%。由于加热不均匀导致的铺层局部温度过高而产生的预浸丝束预固化和在局部压力温度共同作用下部分树脂流动导致的贫树脂区域的出现很可能是影响复合材料性能的原因之一。

Abstract

Automated fiber placement (AFP) is one of the most advanced high-performance aerospace composite manufacturing technology. In order to further study the influence of heating temperature on the properties of composite in AFP technology

a heat transfer model of infrared heating system in AFP process was established. Based on this model

the temperature control method of AFP and the uniformity of temperature distribution in the prepreg layers were analyzed

and the influence of heating temperature on the mechanical properties of composite was studied experimentally. The results show that the heating temperature is the key process parameter affecting the mechanical properties of the composite. When the heating temperature was set at 35℃

the tensile strength

bending strength and interlaminar shear strength of the composite specimens made in this paper increased by 20.9%

12.4% and 4.9%

respectively. Pre-curing of prepreg tows due to over-high local temperature of the prepreg caused by uneven heating

and the resin-poor regions caused by resin flow under the combined action of local high pressure and temperature probably is the one of reasons leading to the deterioration of composite properties.

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