自动铺丝过程中的典型缺陷及原因分析
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摘要
自动铺丝工艺已经成为飞机机体结构的主要制造方法,对于铺丝工艺的研究也越来越多。聚焦了自动铺丝工艺过程中的常见缺陷、缺陷的形成机理以及缺陷对力学性能的影响。在总结了当今国内外最新的研究成果基础上,结合自身在实际铺丝过程中遇到的常见缺陷,分析了造成缺陷的原因,铺放材料包括热固性预浸料、热塑性预浸料和干纤维。综述了有关铺丝工艺常见缺陷的研究;介绍了转变半径试验中遇到的缺陷;分析了曲面模具上铺贴质量问题;研究了夹层结构的主要缺陷类型;最后分别介绍了干纤维和热塑性复合材料自动铺丝的常见缺陷。
Automated fiber placement has been become the main manufacture method to produce airframes such as wings and fuselages, thus the research about automated fiber placement is more and more popular. The paper focuses on the common defects during automated fiber placement, including its types, its causes and its effects on mechanical properties.In the first section, the worldwide research about automated fiber placement is reviewed. Firstly, the summary of common defects in practical placement experiment of our team is introduced, and its possible causes are analyzed, and the research object includes thermoset prepreg, dry fibers and thermoplastic materials. Secondly, a review about common defects in automated fiber placement is introduced. Thirdly, the defects in steering analysis is studied. Fourthly, the layup quality of automated fiber placement on curved panel is analyzed. Finally, the main defects in layup of sandwich structures is investigated, and the defects of dry fibers and thermoplastic prepreg are studied respectively. The introduction and summary should be benefit for the quality improvement in the future automated fiber placement.
Automated fiber placement has been become the main manufacture method to produce airframes such as wings and fuselages, thus the research about automated fiber placement is more and more popular. The paper focuses on the common defects during automated fiber placement, including its types, its causes and its effects on mechanical properties.In the first section, the worldwide research about automated fiber placement is reviewed. Firstly, the summary of common defects in practical placement experiment of our team is introduced, and its possible causes are analyzed, and the research object includes thermoset prepreg, dry fibers and thermoplastic materials. Secondly, a review about common defects in automated fiber placement is introduced. Thirdly, the defects in steering analysis is studied. Fourthly, the layup quality of automated fiber placement on curved panel is analyzed. Finally, the main defects in layup of sandwich structures is investigated, and the defects of dry fibers and thermoplastic prepreg are studied respectively. The introduction and summary should be benefit for the quality improvement in the future automated fiber placement.
引文
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[12]DENKENA B,SCHMIDT C,V?LTZER K,et al.Thermographic online monitoring system for automated fiber placement processes[J].Composites Part B:Engineering,2016,97:239-243.
[13]SCHMIDT C,SCHULTZ C,WEBERP,et al.Evaluation of eddy current testing for quality assurance and process monitoring of automated fiber placement[J].Composites Part B:Engineering,2014,56:109-116.
[14]原崇新.蜂窝夹层结构自动铺丝工艺试验研究与优化[J].航空制造技术,2017,60(23/24):74-78.YUAN Chongxin.Experimental study and optimization of automated fiber placement for honeycomb sandwich structures[J].Aeronautical Manufacturing Technology,2017,60(23/24):74-78.
[2]SCHMIDT C,WEBER P,HOCKET,et al.Influence of prepreg material quality on carbon fiber reinforced plastic laminates processed by automated fiber placement[J].Procedia CIRP,2018,67:422-427.
[3]BAKHSHI N,HOJJATI M.An experimental and simulative study on the defects appeared during tow steering in automated fiber placement[J].Composites Part A:Applied Science and Manufacturing,2018,113:122-131.
[4]G U I N W E,J A C K S O N J R,BOSLEY CM.Effects of tow-to-tow gaps in composite laminates fabricated via automated fiber placement[J].Composites Part A:Applied Science and Manufacturing,2018,115:66-75.
[5]CROFT K,LESSARD,PASINI D,et al.Yousefpour,experimental study of the effect of automated fiber placement induced defects on performance of composite laminates[J].Composites Part A:Applied Science and Manufacturing,2011,42(5):484-491.
[6]WOIGK W,HALLETT SR,JONESM I,et al.Experimental investigation of the effect of defects in automated fibre placement produced composite laminates[J].Composite Structures,2018,201:1004-1017.
[7]FAYAZBAKHSH K,ARIAN NIKM,PASINI D.Defect layer method to capture effect of gaps and overlaps in variable stiffness laminates made by automated fiber placement[J].Composite Structures,2013,97:245-251.
[8]ARIAN NIK M,FAYAZBAKHSHK,PASINI D,et al.Optimization of variable stiffness composites with embedded defects induced by automated fiber placement[J].Composite Structures,2014,107:160-166.
[9]黄新杰.铺丝工艺参数优化及典型工艺缺陷对性能影响研究[D].南京:南京航空航天大学,2016.HUANG Xinjie.Research on the process parameters optimization and the influence of the defects on the mechanical properties for automatic fiber placement[D].Nanjing:Nanjing University of Aeronautics and Astronautics,2016.
[10]BELHAJ M,DELEGLISE M,COMAS-CARDONA S,et al.Figueiredo,Dry fiber automated placement of carbon fibrous preforms[J].Composites Part B:Engineering,2013,50:107-111.
[11]AZIZ A R,ALI M A,ZENG X,et al.Transverse permeability of dry fiber preforms manufactured by automated fiber placement[J].Composites Science and Technology,2017,152:57-67.
[12]DENKENA B,SCHMIDT C,V?LTZER K,et al.Thermographic online monitoring system for automated fiber placement processes[J].Composites Part B:Engineering,2016,97:239-243.
[13]SCHMIDT C,SCHULTZ C,WEBERP,et al.Evaluation of eddy current testing for quality assurance and process monitoring of automated fiber placement[J].Composites Part B:Engineering,2014,56:109-116.
[14]原崇新.蜂窝夹层结构自动铺丝工艺试验研究与优化[J].航空制造技术,2017,60(23/24):74-78.YUAN Chongxin.Experimental study and optimization of automated fiber placement for honeycomb sandwich structures[J].Aeronautical Manufacturing Technology,2017,60(23/24):74-78.