工艺与制造英文2025被引 1
用于热塑性复合材料夹芯板感应焊接的3D打印磁感应体丝材
3D-printing magnetic susceptor filament for induction welding of thermoplastic composite sandwich panels
R. Gómez Martín, Christian Jonasson, Christer Johansson, Jason R. Tavares, Martine Dubé · École de Technologie Supérieure
摘要整理
开发了一种可打印丝材形式的磁感应体，用于热塑性复合材料的感应焊接。该磁感应体以镍颗粒嵌入聚醚酰亚胺基体的形式制备，通过挤出成型并缠绕成丝材，可通过熔融沉积成型（FDM）技术进行3D打印。磁感应体通过镍颗粒的磁滞损耗产生热量。与其他典型导电加热元件不同，无需达到渗流阈值即可产生热量，因为镍颗粒在暴露于感应线圈磁场时会单独发热。验证了磁感应体丝材的加热效率及其通过熔融丝材制造技术的沉积性能。该磁感应体用于组装全热塑性复合材料夹芯板。通过平向拉伸试验（FWT）测试夹芯样品，获得拉伸强度为4.6 MPa，与报道的典型航空级夹芯板强度相当或更高。可打印磁感应体为新型感应焊接或加热应用开辟了道路，因为它可以直接打印在表面上以产生所需的加热图案。该研究证明了该材料用于感应焊接的可行性，为热塑性复合材料夹芯结构的快速制造提供了新的解决方案。
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