Abstract
An extrusion-bending continuous forming process (EBCFP) is proposed for manufacturing curved profiles, which enables online bending of the extruded profiles at the die outlet with the guide of a robotic arm. Experimental setups were designed and constructed. Extrusion-bending experiments were conducted using AA6063 aluminum alloy under different process parameters. The springback, cross-section deformation, microstructure, and mechanical properties of the extruded-bent profiles were investigated. Compared to conventional stretch-bent profiles, the extruded-bent profiles exhibit reduced springback and cross-sectional deformation and higher mechanical properties.
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