首页|工艺参数对CCF/PEEK预浸料单束铺放尺寸的影响

工艺参数对CCF/PEEK预浸料单束铺放尺寸的影响

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热塑性预浸料铺放过程中单丝束尺寸对整体构件铺放质量有重要影响,为提高连续碳纤维增强聚醚醚酮(CCF/PEEK)复合丝材铺放成型质量,研究了工艺参数对其在铺放过程中的单束宽度和厚度的影响规律,并根据实验结果建立拟合模型.首先设计正交实验,研究了铺放速度、铺放压力、加热温度等铺放工艺参数对CCF/PEEK预浸料宽度和厚度变化的影响规律,并由上述研究所得的影响宽度和厚度的最显著工艺参数,分别开展单因素实验研究.正交研究结果表明,各工艺参数对丝束宽度的影响显著程度依次为加热温度>铺放速度>铺放压力,对丝束厚度的影响显著程度依次为铺放压力>加热温度>铺放速度.单因素实验结果表明,在丝束不发生失效的工艺参数范围内,丝束宽度随加热温度的升高而增大,随铺放速度的提高而减小,随铺放压力的增大而增大.丝束厚度随铺放压力的增大而减小.采用多元线性回归方法对各工艺参数综合影响丝束宽度进行拟合,验证计算结果表明,建立的模型拟合效果较好.
Effect of process parameters on the lay-up size of single bundle of CCF/PEEK prepregs
The single filament bundle size during the lay-up process of thermoplastic prepreg has an important influence on the lay-up quality of the overall component.In order to improve the lay-up molding quality of continuous carbon fiber reinforced polyether ether ketone(CCF/PEEK)composites,the influence laws of the process parameters on the width and thickness of the lay-up process were investigated,and the fitting model was established based on the experimental results.Firstly,orthogonal experi-ments were designed to study the influence laws of lay-up process parameters such as laying speed,compaction force,and heating temperature on the changes of width and thickness of CCF/PEEK prepreg,in addition,the most significant process parameters affecting width and thickness obtained from the above studies were subjected to single-factor experimental studies respectively.The results of orthogonal study show that the significant degree of influence of each process parameter on the width of the filament bundle is heating temperature>laying speed>compaction force,and the significant degree of influence on the thickness of the fila-ment bundle is compaction force>heating temperature>laying speed.The results of the single-factor experiments show that within the range of process parameters where no defect occurs,the width of prepreg increases with the increase of heating temperature,decreases with the increase of laying speed,and increases with the increase of compaction force.The thickness of prepreg decreases with increasing compaction force.Multiple linear regression method is used to fit the comprehensive effect of each process parame-ter on the width of the prepreg,and the validation calculation results show that the established model has a good fitting effect.

automated fiber placementorthogonal experimentcontinuous carbon fiberpolyether ether ketonecompos-ite materialsprocess parameter

包蒙哲、任永新、刘晓军、邹爱玲、姜稀膑

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北京机科国创轻量化科学研究院有限公司,北京 100083

机械科学研究总院集团有限公司先进成形技术与装备全国重点实验室,北京 100044

自动铺丝 正交实验 连续碳纤维 聚醚醚酮 复合材料 工艺参数

国防科技基础加强计划中国机械科学研究总院集团有限公司技术发展基金中国机械科学研究总院集团有限公司技术发展基金

332201Q9332301Q9

2024

10.3969/j.issn.1001-3539.2024.03.014

工程塑料应用
中国兵器工业集团第五三研究所 中国兵工学会非金属专业委员会　兵器工业非金属材料专业情报网

工程塑料应用

CSTPCD北大核心
影响因子：0.371
ISSN：1001-3539
年,卷(期)：2024.52(3)
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