Springback behavior of fiber metal laminate (FML) composites in press brake forming process

zThe brake forming process is suitable for producing fiber metal laminate (FML) composites.However, the springback that occurs during braking causes severe problems in the final dimensional tolerance of the composite laminate.In this study, the springback behavior of fiber metal laminate (FML) composites in the v-shaped brake-forming process were experimentally investigated.In FML composites, 6061-T6 Aluminum was used on the outer surfaces, and carbon, glass, carbon/glass, and aramid fiber-reinforced epoxy composite plates were used in the inner layers.The effects of bending angle and die width parameters on springback behavior in the v-shaped brake-forming process were examined.Forming processes were carried out with bending angles of 140, 150, and 160 and two different mold widths: 16 and 20 mm.As a result of experiments, the highest springback was observed in the aluminum-carbon fiber-aluminum composite plate with 15.1 and the lowest springback was observed in the aluminum-glass/carbon fiber-aluminum composite plate with 0.4.The highest spring-go was obtained in the aluminum-aramid fiberaluminum composite plate with -1.7, while the lowest spring-go was obtained in the aluminum-glass fiber-aluminum composite plate with -0.3.Abkant preste ekillendirme prosesi, fiber metal tabakal (FML) kompozitlerin retimi iin uygun bir yntemdir.Ancak ekillendirme srasnda oluan geri yaylanma, kompozit plakann son boyut toleransnda ciddi sorunlara neden olmaktadr.Bu almada, fiber metal tabakal (FML) kompozitlerin abkant preste v-ekilli ekillendirme prosesindeki geri yaylanma davran deneysel olarak incelenmitir.FML kompozitlerde d yzeylerde 6061-T6 Alminyum, i katmanlarda ise karbon, cam, karbon/cam ve aramid elyaf takviyeli epoksi kompozit levhalar kullanlmtr.V-ekilli abkant pres ekillendirme prosesinde bkme as ve kalp genilii parametrelerinin geri yaylanma davranna etkileri incelenmitir