Authors addressed the case of bending using a press brake, and experimentally investigated and evaluated the effects of various conditions on the bending limit and bending accuracy for an AZ31 magnesium Mg alloy sheet thickness tϭ0.5 mm in air bending. The results indicate that cracks were generated on the surface of the Mg alloy sheet when the bending punch radius was smaller than 1.5 mm three times of the sheet thickness . To prevent these cracks, warm bending was required, in which the sheet material was heated to 250°C. Also, the amount of springback of Mg was larger than steel when bending at room temperature, since the modulus of elasticity of Mg is smaller than that of steel. However, when the bending temperature was high, the amount of elastic recovery of Mg rapidly decreased, resulted in a significant decrease in springback. When the bending temperature was as high as approximately 300°C, bent products with nearzero springback were obtained. In addition, we quantitatively determined the effect of various bending conditions, such as bending punch radius, die opening and bending temperature, on the bend radius and bend allowance of products. The results provide useful data that can serve as guidelines in actual bending process.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.