A comparative experimental study of the drilling and milling of a newly developed AFRP/SS/AFRP co-cured material.

The experiment combined aramid fiber-reinforced polymer (AFRP) and stainless steel (SS) into a laminated structure, which was an AFRP/SS/AFRP co-cured material. The milling cutter and drill bit were used in the experiment to study the hole machining effect of the co-cured material. The effects of machining parameters on the hole processing quality were compared, and the cutting mechanism of the co-cured material was revealed. The research results show that the processing effect of milling is better than that of drilling, and the cutting force during the hole machining process is small, only 53.619% of that of drilling. In the milling method, the tool wear is minor, and the material is primarily shear-fractured, while there are partial tensile fractures under drilling conditions. The damage form and mechanism of the co-cured material laminated interface were experimentally studied, the chip shapes of AFRP and stainless steel under different process methods were summarized, and the mechanism analysis was conducted based on cutting force and tool wear. Additionally, the experiment discovered a type of AFRP chip, which was resin chips. The morphology and forming mechanism of resin chips were analyzed, which provided a theoretical basis and auxiliary support for revealing the cutting mechanism of the co-cured material. [ABSTRACT FROM AUTHOR]