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| Research Progress and Technical Difficulties in Over-Molding of Thermoplastic Composites |
| BI Ran1, YAO Jianan1, HAO Jie2, OU Qiuren2, HU Nan2, LIU Gang1,3 |
1. State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Egineering, Donghua University, Shanghai 201620, China;
2. Aerospace Institute of Advanced Materials & Processing Technology, Beijing 100074, China;
3. Institute of Advanced Technology and Equipment, Beijing University of Chemical Technology, Beijing 100029, China |
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Abstract 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.
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2024, 
