Infrared heating system based on automated fiber placement for thermoplastic composites
Qing-hua SONG1,*(), Wei-ping LIU1, Jun XIAO2, Ping CHEN1, Yang YANG1, Ji-ping CHEN1
1 Shanghai Aircraft Manufacturing Co., Ltd., Shanghai 201324, China 2 College of Material Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China
In order to ensure the full melting of the thermoplastic composites (TPC) prepreg in the process of automated fiber placement (AFP) and offer the potential to realize the in-situ consolidation for TPC, it is necessary to control the temperature of the prepreg in AFP. Aiming at the processing speed will be changed within the larger scope, an infrared heating technology with fast response rate and efficient was proposed. Based on the analysis of the heat transfer process between the infrared heat source and the layers, the control equation of dynamic temperature was put forward and the matching relationship between the radiation intensity and laying speed was established. Based on the AFP platform, the infrared heating system which adopts the feedforward control method was constructed and the corresponding control strategy was formulated according to the dynamic thermostatic control equation to realize the heating temperature of prepreg controlled accurately. The experiment results show that the infrared heating thermostatic control system can meet the requirement of dynamic thermostatic control in the condition of variable speed and the compressive strength and the interlaminar shear strength for AFP component are closed to the moulded component.
SONG Q H , XIAO J , WEN L W , et al. Non-isothermal crystallization kinetics of thermoplastic composite for automated fiber placement[J]. Journal of Materials Engineering, 2018, 46 (4): 120- 126.
SONG Q H , XIAO J , WEN L W , et al. Temperature field during automated fiber placement for thermoplastic composite[J]. Journal of Materials Engineering, 2017, 46 (1): 83- 91.
FU H Y , LI Y H . Research on thermoplastic composites fiber placement technology[J]. Aeronautical Manufacturing Technology, 2012, (18): 44- 48.
doi: 10.3969/j.issn.1671-833X.2012.18.005
WANG X G , YU Y , LI S M , et al. The research on fiber reinforced thermoplastic composites[J]. Fiber Composites, 2011, (2): 44- 47.
doi: 10.3969/j.issn.1003-6423.2011.02.011
HAN Z Y , LI Y H , FU H Y , et al. Thermoplastic composites fiber placement process research[J]. Journal of Materials Engineering, 2012, (2): 91- 96.
doi: 10.3969/j.issn.1001-4381.2012.02.020
YU Y B , WEN L W , XIAO J , et al. Study of infrared heating technology in automatic tape-laying[J]. Acta Aeronautica et Astronautica Sinica, 2011, 32 (6): 1124- 1131.
7
PITCHUMANI R , GILLESPIE J W , LAMONTIA M A , et al. Design and optimization of a thermoplastic tow placement process with in situ consolidation[J]. Journal of Composites Materials, 1997, 31 (3): 244- 275.
doi: 10.1177/002199839703100302
8
BUIJS J A H M , NEDERVEEN P J . A study of consolidation in filament winding with thermoplastic prepregs[J]. Journal of Thermoplastic Composites Materials, 1992, 5 (4): 276- 286.
doi: 10.1177/089270579200500401
9
SONMEZ F O , AKBULUT M . Process optimization of tape placement for thermoplastic composites[J]. Composites Part A, 2007, 38 (9): 2013- 2023.
doi: 10.1016/j.compositesa.2007.05.003
10
HEIDER D , PIOVOSO M J , GILLESPIE J W . A neural network model-based open-loop optimization for the automated thermoplastic composites tow-placement system[J]. Composites Part A, 2003, 34 (8): 791- 799.
doi: 10.1016/S1359-835X(03)00120-9
SONG Q H , XIAO J , WEN L W , et al. Automated fiber placement system technology for thermoplastic composites[J]. Acta Materiae Compositae Sinica, 2016, 33 (6): 1214- 1222.
LIU S W , PEI Y F , SUN L Y . Research on spectral pattern of infrared lamp for thermal vacuum test of spacecraft[J]. Journal of Astronautics, 2010, 31 (1): 254- 258.
doi: 10.3873/j.issn.1000-1328.2010.01.042
GUO K B , CHEN L P , SHI Y S , et al. Numerical modeling and calculation for tubular radiation heater of SLS system[J]. China Mechanical Engineering, 2009, 20 (8): 996- 999.
doi: 10.3321/j.issn:1004-132X.2009.08.026
SONG Q H , XIAO J , WEN L W , et al. Influence of molding press on mechanical properties of glass fiber reinforced polypropylene composites[J]. Acta Materiae Compositae Sinica, 2016, 33 (12): 342- 350.