Automated Tape Placement (ATP) of thermoplastic composites combined with in-situ consolidation is the general trend in the field of aeronautic composite structures. It is of practical significance to narrow the gap between mechanical properties of products manufactured by ATP and by hot pressing. Based on processing of ultrasonic-assisted placement with in-situ consolidation technique, laminates of carbon fiber reinforced poly (ether ether ketone) matrix composites (CF/PEEK) were manufactured and compared with straight hot-pressing and post-consolidated specimens in terms of mechanical properties, offering reference for ATP of thermoplastics composites. The results show that the ultrasonic heat source can meet the energy requirement for CF/PEEK placement. Higher power of heat source and lower placement speed can help with combination of layers. The specimens manufactured by ultrasonic-assisted placement show characteristics of high porosity and some fiber injury. Ultrasonic-assisted placement can shorten consolidation cycle after hot-pressing. The tensile strength, modulus, and interlaminar shear strength of unidirectional laminate specimens are 1.32, 113.8, and 39.2 MPa respectively (80.4%, 84.8%, and 65.1% of those of hot-pressing specimens respectively), and rise to 92.1%, 92.6% and 82.5% of those hot-pressing ones respectively after post-consolidation. The failure form of pendulum impact failure of hot-pressing specimens is delamination, and changes into fracture after post-consolidation with less porosity and higher bonding strength between layers, the same as that of the straight hot-pressing ones.
WANG Xin
,
LI Yong
,
HUAN Dajun
,
CHEN Haoran
,
ZHANG Xiangyang
. Ultrasonic-assisted in-situ placement of CF/PEEK composite and its mechanical properties[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2018
, 39(9)
: 422021
-422029
.
DOI: 10.7527/S1000-6893.2018.22021
[1] 顾轶卓, 李敏, 李艳霞, 等. 飞行器结构用复合材料制造技术与工艺理论进展[J]. 航空学报, 2015, 36(8):2773-2797. GU Y Z, LI M, LI Y X, et al. Progress on manufacturing technology and process theory of aircraft composite structure[J]. Acta Aeronautica et Astronautica Sinica, 2015, 36(8):2773-2797(in Chinese).
[2] 文立伟, 肖军, 王显峰, 等. 中国复合材料自动铺放技术研究进展[J]. 南京航空航天大学学报, 2015, 47(5):637-649. WEN L W, XIAO J, WANG X F, et al. Progress of automated placement technology for composites in China[J]. Journal of Nanjing University of Aeronautics & Astronautics, 2015, 47(5):637-649(in Chinese).
[3] 董安琪, 赵新青, 肇研. 纤维自动铺放工艺制备单向罐外固化复合材料的拉-拉疲劳性能[J]. 航空学报, 2018, 39(2):421422. DONG A Q, ZHAO X Q, ZHAO Y. Tension fatigue performance of unidirectional out-of-autoclave composite manufactured by automated fiber placement[J]. Acta Aeronautica et Astronautica Sinica, 2018, 39(2):421422(in Chinese).
[4] GUAN X, PITCHUMANI R. Modeling of spherulitic crystallization in thermoplastic tow-placement process:Heat transfer analysis[J]. Composites Science & Technology, 2004, 64(9):1123-1134.
[5] TIERNEY J J, GILLESPIE Jr J W. Crystallization kinetics behavior of PEEK based composites exposed to high heating and cooling rates[J]. Composites Part A:Applied Science and Manufacturing, 2004, 35(5):547-558.
[6] TIERNEY J, GILLESPIE J W, Jr. Modeling of in situ strength development for the thermoplastic composite tow placement process[J]. Journal of Composite Materials, 2006, 40(16):1487-1506.
[7] SONMEZ F O, AKBULUT M. Process optimization of tape placement for thermoplastic composites[J]. Composites Part A:Applied Science and Manufacturing, 2007, 38(9):2013-2023.
[8] KHAN M A, MITSCHANG P, SCHLEDJEWSKI R. Parametric study on processing parameters and resulting part quality through thermoplastic tape placement process[J]. Journal of Composite Materials, 2013, 47(4):485-499.
[9] QURESHI Z, SWAIT T, SCAIFE R, et al. In situ consolidation of thermoplastic prepreg tape using automated tape placement technology:Potential and possibilities[J]. Composites Part B:Engineering, 2014, 66(11):255-267.
[10] RAY D, COMER A J, LYONS J, et al. Fracture toughness of carbon fiber/polyether ether ketone composites manufactured by autoclave and laser-assisted automated tape placement[J]. Journal of Applied Polymer Science, 2015, 132(11):41643.
[11] RIZZOLO R H, WALCZYK D F. Ultrasonic consolidation of thermoplastic composite prepreg for automated fiber placement[J]. Journal of Thermoplastic Composite Materials, 2015, 29(11):1480-1497.
[12] PARANDOUSH P, TUCKER L, ZHOU C, et al. Laser assisted additive manufacturing of continuous fiber reinforced thermoplastic composites[J]. Materials & Design, 2017, 131:186-195.
[13] VAN HOA S, DUC HOANG M, SIMPSON J. Manufacturing procedure to make flat thermoplastic composite laminates by automated fibre placement and their mechanical properties[J]. Journal of Thermoplastic Composite Materials, 2017, 30(12):1693-1712.
[14] ZHAO P, SHIRINZADEH B, SHI Y, et al. Multi-pass layup process for thermoplastic composites using robotic fiber placement[J]. Robotics and Computer-Integrated Manufacturing, 2018, 49:277-284.
[15] WANG K, SHRIVER D, LI Y, et al. Characterization of weld attributes in ultrasonic welding of short carbon fiber reinforced thermoplastic composites[J]. Journal of Manufacturing Processes, 2017, 29:124-132.
[16] 陈杰, 张婷, 周天睿, 等. 连续GF增强PP层合板铺放成型工艺参数研究[J]. 工程塑料应用, 2015, 43(5):43-48. CHEN J, ZHANG T, ZHOU T R, et al. Study on processing parameters of tape placement for continuous GF reinforced PP laminates[J]. Engineering Plastics Application, 2015, 43(5):43-48(in Chinese).
[17] 宋清华. 热塑性复合材料自动铺放过程温度场分析及构件性能研究[D]. 南京:南京航空航天大学, 2016:24-79. SONG Q H. Research on temperature field during automated fiber placement and the mechanical properties of thermoplastic composites[D]. Nanjing:Nanjing University of Aeronautics and Astronautics, 2016:24-79(in Chinese).
[18] LAMONTIA M A, GRUBER M B, TIERNEY J J, et al. Modeling the accudyne thermoplastic in situ ATP process[C]//30th International SAMPE Europe Conference, 2009.
[19] 周天睿, 方立, 万明, 等. 连续CF增强PEEK复合材料层压板的制备工艺[J]. 工程塑料应用, 2016, 44(7):52-56. ZHOU T R, FANG L, WAN M, et al. Preparation process of continuous CF reinforced PEEK composite laminates[J]. Engineering Plastics Application, 2016, 44(7):52-56(in Chinese).
[20] 王召召. 复合材料热压罐/真空辅助(VARI)组合工艺设计与结构性能研究[D]. 上海:东华大学, 2016:45-46. WANG Z Z. Study on structure and properties of the composite manufactured by autoclave/VARI technology and its design[D]. Shanghai:Donghua University, 2016:45-46(in Chinese).
[21] 贺福, 杨永岗. 碳纤维的表面处理与复合材料的层间剪切强度[J]. 航空材料学报, 1994, 14(4):55-61. HE F, YANG Y G. Surface treatment of carbon fibers and interlaminar shear strength of composites[J]. Journal of Aeronautical Materials, 1994, 14(4):55-61(in Chinese).
CJA