工艺与制造英文2023被引 8
聚碳酸酯基单向（UD）热塑性复合材料带材点焊工艺优化
Optimizing the Process of Spot Welding of Polycarbonate-Matrix-Based Unidirectional (UD) Thermoplastic Composite Tapes
János Birtha, Christian Marschik, Eva Kobler, Klaus Straka, Georg Steinbichler, Sven Schlecht, Paul Zwicklhuber · Johannes Kepler University of Linz
摘要整理
本研究旨在优化聚碳酸酯/碳纤维单向带材的点焊工艺。通过三个阶段的研究系统调查了焊接条件对焊点质量的影响。首先，采用全因子实验设计分析了温度和时间对焊缝拉伸断裂应力的影响；其次，在优化工艺参数下重复验证实验；最后，采用中心复合设计（CCD）评估工艺的稳定性。研究结果表明，温度是影响焊点质量的主要因素。最大拉伸断裂应力达到23 MPa。采用相对较高的温度和较短的焊接时间可实现焊头自清洁，使焊接过程更快速、更稳定。凝胶渗透层析（GPC）分析证实这些工艺条件不会导致材料的额外降解。该研究为聚碳酸酯基热塑性复合材料的高效连接提供了工艺指导。
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