Kizak Melike, von Bartschikowski Anna, Trauth Anna, Heigl Christian, Drechsler Klaus
Chair of Carbon Composites, Technical University of Munich, Boltzmannstr. 15, 85748 Garching, Germany.
Institute of Materials Resource Management, University of Augsburg, Am Technologiezentrum 8, 86159 Augsburg, Germany.
Polymers (Basel). 2024 Sep 26;16(19):2719. doi: 10.3390/polym16192719.
Hybrid manufacturing processes integrate multiple manufacturing techniques to leverage their respective advantages and mitigate their limitations. This study combines additive manufacturing and injection molding, aiming to efficiently produce components with extensive design flexibility and functional integration. The research explores the interfacial fusion bonding of hybrid additively manufactured components under torsional loading. Specifically, it examines the impact of various surface treatments on injection molded parts and the influence of different build chamber temperatures during additive manufacturing on torsional strength. Polycarbonate components, neat, with glass or carbon fiber-reinforcement, are produced and assessed for dimensional accuracy, torsional strength, and fracture behavior. The findings emphasize the critical role of surface treatment for the injection molded components before additive manufacturing. Additionally, the study identifies the influence of chamber temperatures on both dimensional accuracy and torsional strength. Among all investigated materials, plasma-treated neat samples exhibited the best torsional strength. The torsional strength was increased by up to 87% by actively heating the build chamber to 186 °C for neat polycarbonate. These insights aim to advance the quality and performance of hybrid additively manufactured components, broadening their application potential across diverse fields.
混合制造工艺整合了多种制造技术，以利用它们各自的优势并减轻其局限性。本研究将增材制造和注塑成型相结合，旨在高效生产具有广泛设计灵活性和功能集成性的部件。该研究探讨了混合增材制造部件在扭转载荷下的界面熔合粘结。具体而言，它研究了各种表面处理对注塑部件的影响，以及增材制造过程中不同的成型室温度对扭转强度的影响。制备了纯聚碳酸酯、玻璃纤维增强或碳纤维增强的聚碳酸酯部件，并对其尺寸精度、扭转强度和断裂行为进行了评估。研究结果强调了在增材制造之前对注塑部件进行表面处理的关键作用。此外，该研究还确定了成型室温度对尺寸精度和扭转强度的影响。在所有研究的材料中，经过等离子处理的纯样品表现出最佳的扭转强度。对于纯聚碳酸酯，通过将成型室主动加热到186°C，扭转强度提高了87%。这些见解旨在提高混合增材制造部件的质量和性能，拓宽其在不同领域的应用潜力。
