Abstract
The stacked carbon fiber reinforced plastic (CFRP) laminate and metallic plate are widely used in the aerospace industry to improve structural performance and reliability. Abrasive waterjet (AWJ) machining is a promising technique for cutting hybrid metallic/CFRP stacks with high efficiency and versatility, while the machining defects including kerf taper, striation, and craters are prevalent when using the single-pass AWJ cutting method. This study aims to develop a dual-pass AWJ cutting strategy to improve surface quality and reduce machining-induced damage of Al/CFRP stacks without compromising machining efficiency. The kerf taper was respectively reduced by up to ~ 63% and ~ 37% for aluminum plate and CFRP laminate using the proposed dual-pass abrasive waterjet slotting strategy. Striations were effectively reduced, resulting in improved kerf surface quality and significantly lower maximum peak-to-valley height. Straight/smooth kerf profiles were obtained by employing the dual-pass strategy with relatively low hydraulic pressure levels.
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This work was supported by the National Natural Science Foundation of China (52275422, recipient: ML).
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ML: conceptualization, investigation, funding acquisition, writing-original draft, and editing; TS: methodology, data collection, and writing-original draft; XL: data collection and methodology and data collection.
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Li, M., Su, T. & Lin, X. Improving surface striation and kerf taper of hybrid Al/CFRP stacks using dual-pass abrasive waterjet slotting strategy. Int J Adv Manuf Technol 130, 5763–5776 (2024). https://doi.org/10.1007/s00170-024-13084-y
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DOI: https://doi.org/10.1007/s00170-024-13084-y