碳纤维复合材料U形构件角度收缩及模具补偿研究
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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。
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.
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.
引文
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[2]戴棣.复合材料结构件的固化变形研究[D].南京:南京航空航天大学,1999.DAI Di.Research on the curing deformation of composite materials parts[D].Nanjing:Nanjing University of Aeronautics and Astronautics,1999.
[3]ERSOY N,POTTER K,WISNOM M R,et al.Development of spring in angle during cure of a thermosetting composite[J].Composites Part A:Applied Science and Manufacturing,2005,36(12):1700-1706.
[4]DONG C.Process-induced deformation of composite T-stiffener structures[J].Composite Structures,2010,92(7):1614-1619.
[5]赵渠森.先进复合材料手册[M].北京:机械工业出版社,2003.ZHAO Qusen.Advanced composites manual[M].Beijing:China Machine Press,2003.
[6]王晓霞,贾玉玺,程程,等.树脂传递模塑工艺的模内固化及复合材料脱模变形[J].高分子材料科学与工程,2010,26(9):151-154.WANG Xiaoxia,JIA Yuxi,CHENG Cheng,et al.Numerical analysis of curing reaction and demoulding deformation in resin transfer moulding processes[J].Polymeric Materials Science and Engineering,2010,26(9):151-154.
[7]李建川,何凯,彭建,等.纤维增强热固性复合材料构件的固化变形研究进展[J].纤维复合材料,2013,30(1):45-48.LI Jianchuan,HE Kai,PENG Jian,et al.Research development on the curing deformation of fiber reinforced thermosetting composite materials part[J].Fiber Composites,2013,30(1):45-48.
[8]唐占文,张博明.复合材料设计制造一体化中的固化变形预报技术[J].航空制造技术,2014,57(15):32-37.TANG Zhanwen,ZHANG Boming.Prediction of curing deformation in integrated design and manufacture composites[J].Aeronautical Manufacturing Technology,2014,57(15):32-37.
[9]王永军,元振毅,杨选宏,等.先进复合材料构件成型模具和工装技术[J].航空制造技术,2013,56(10):32-35.WANG Yongjun,YUAN Zhenyi,YANG Xuanhong,et al.Molding and tooling technology in advanced composites component[J].Aeronautical Manufacturing Technology,2013,56(10):32-35
[10]王仁宇,关志东,王乾,等.复合材料V型构件的固化变形预测及其工装型面设计[J].材料导报,2017,31(1):131-135.WANG Renyu,GUAN Zhidong,WANG Qian,et al.Cure-induced deformation prediction and tool surface design for V profile composite part[J].Materials Review,2017,31(1):131-135
[11]F.C.坎贝尔.先进复合材料的制造工艺[M].戴棣,朱月琴,译.上海:上海交通大学出版社,2016.CAMPBELL F C.Manufacturing processes for advanced composites[M].Shanghai:DAI Di,ZHU Yueqin,Trans.Shanghai Jiao Tong University Press,2016.