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材料工程  2019, Vol. 47 Issue (1): 77-83    DOI: 10.11868/j.issn.1001-4381.2017.000346
  研究论文 本期目录 | 过刊浏览 | 高级检索 |
热塑性复合材料自动铺放过程中红外加热技术研究
宋清华1, 刘卫平1, 肖军2, 陈萍1, 杨洋1, 陈吉平1
1. 上海飞机制造有限公司, 上海 201324;
2. 南京航空 航天大学材料科学与技术学院, 南京 210016
Infrared heating system based on automated fiber placement for thermoplastic composites
SONG Qing-hua1, LIU Wei-ping1, XIAO Jun2, CHEN Ping1, YANG Yang1, CHEN Ji-ping1
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
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摘要 为保证热塑性预浸料树脂基体在自动铺放(automated fiber placement,AFP)过程中充分熔融,实现热塑性复合材料(thermoplastic composites,TPC)逐层"原位固结"成型,自动铺放成型过程中需精确控制预浸料的加热温度。针对自动铺放过程中铺放速率会在较大范围内变动的特点,本工作提出一种高速率响应的红外线辐射加热技术。通过对红外热源与铺层间能量传输过程的分析,提出红外加热过程中动态恒温控制方程,建立热源辐射强度与铺放速率之间的匹配关系。基于热塑性复合材料自动铺放实验平台,构建红外加热恒温控制系统,该系统采用前馈控制方式,根据动态恒温控制方程,制定相应控制策略,实现对预浸料加热过程中温度的精确控制。实验结果表明自动铺放过程中使用红外加热恒温控制系统满足变速工况下恒温加热要求,且铺放成型实验件的压缩强度及层间剪切强度均接近模压成型实验件。
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宋清华
刘卫平
肖军
陈萍
杨洋
陈吉平
关键词 热塑性复合材料自动铺放红外加热前馈控制原位固结    
Abstract: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.
Key wordsthermoplastic composites    automated fiber placement    infrared heating    feedforward control    in-situ consolidation
收稿日期: 2017-03-06      出版日期: 2019-01-16
中图分类号:  TB332  
  V261  
通讯作者: 宋清华(1987-),男,博士后,研究方向:连续纤维增强热塑性复合材料自动铺放原位成型技术,联系地址:上海市浦东新区祝桥镇上飞路919号上海飞机制造有限公司(201324),E-mail:songqinghua@comac.cc     E-mail: songqinghua@comac.cc
引用本文:   
宋清华, 刘卫平, 肖军, 陈萍, 杨洋, 陈吉平. 热塑性复合材料自动铺放过程中红外加热技术研究[J]. 材料工程, 2019, 47(1): 77-83.
SONG Qing-hua, LIU Wei-ping, XIAO Jun, CHEN Ping, YANG Yang, CHEN Ji-ping. Infrared heating system based on automated fiber placement for thermoplastic composites. Journal of Materials Engineering, 2019, 47(1): 77-83.
链接本文:  
http://jme.biam.ac.cn/CN/10.11868/j.issn.1001-4381.2017.000346      或      http://jme.biam.ac.cn/CN/Y2019/V47/I1/77
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