热塑性复合材料二次成型研究进展及工艺难点  

Research Progress and Technical Difficulties in Over-Molding of Thermoplastic Composites

作　　者：毕冉 姚佳楠 郝杰 欧秋仁[2] 胡楠 刘刚 BI Ran;YAO Jianan;HAO Jie;OU Qiuren;HU Nan;LIU Gang(State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620,China;Aerospace Institute of Advanced Materials&Processing Technology,Beijing 100074,China;Institute of Advanced Technology and Equipment,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]东华大学材料科学与工程学院纤维材料改性国家重点实验室,上海201620 [2]航天特种材料及工艺技术研究所,北京100074 [3]北京化工大学先进技术与装备研究院,北京100029

出　　处：《航空制造技术》2024年第20期134-147,共14页Aeronautical Manufacturing Technology

基　　金：上海市“科技创新行动计划”(22DZ2206400)。

摘　　要：近年来,热塑性复合材料因其优异的力学性能、耐环境性及可回收的利用潜力,逐步应用于航空航天、海洋装备及交通运输等领域。热塑性复合材料可采用多种成型工艺方法实现其结构部件制备。其中二次成型是一种可以将预制件与注塑过程结合起来的复合材料成型工艺,是热塑性复合材料独有的成型工艺方式,并因其结构及材料设计的多样性、工艺灵活性等特点,逐步受到研究人员的广泛关注。本文将基于二次成型全工艺过程,介绍其研究进展,工艺过程包括材料体系、预制件的制造及预处理、注塑、结构后处理,以及该工艺所涉及的数值模拟手段和联用方式,并分析了目前所面临的工艺难点及未来发展方向。In recent years,thermoplastic composites have been gradually used in aerospace,marine equipment,transportation,and other fields because of their excellent mechanical properties,environmental resistance,and recyclable potential.They can be prepared by various forming processes.Among them,overmolding,which is a unique molding process for thermoplastic composites can combine the prefabricated parts with the injection molding process.Due to the diversity of its structure and material design,process flexibility,it has gradually attracted wide attention from researchers.Based on the whole process of overmolding,this paper will introduce its research progress,including material system,manufacturing and pre-treatment of prefabricated parts,injection molding,post-treatment of structures,as well as the numerical simulation means and combined application methods involved in this process,and analyze the current process difficulties and future development direction.

关 键 词：热塑性复合材料 二次成型 轻量化 工艺优化 数值模拟 

分 类 号：TB33[一般工业技术—材料科学与工程]