Asymmetric-Shaped Bending of Adhesively Bonded Sheet Metals

Abstract:

In sheet metal industries, press-formed sheet elements are usually adhesively bonded together at the final stage of assembly. Instead of such a conventional process, the present authors proposed a new technique that first flat sheets are adhesively bonded together and then press-formed into the final products. In previous study, the problem of the die-bending (V-bending and hat-shaped bending) with symmetrical shape has studied. In this study, asymmetric-shaped bending of adhesively bonded sheet metals was investigated by experiments and FEM analysis method. In the case of asymmetric-shaped bending, it was found that the timing of contact from the die corner to the die hypotenuse is early in the press-forming process compared with symmetrical bending (V-bending and hat-shaped bending). For the FEM analysis results, the maximum shear strain in asymmetric-shaped bending was smaller than that in symmetric-shaped bending at the hat-shaped side. Thus, the shape of the die has a large influence on the die-bending of adhesively bonded sheet metals.

• Periodical: Key Engineering Materials (Volume 725)
• Pages: 630-635
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.725.630
• Online since: December 2016
• Authors: Taro Tokuda*, Takeshi Uemori, Tetsuya Yoshida, Michihiro Takiguchi, Fusahito Yoshida
• Keywords: Acrylic Adhesive, Adhesive Joint, Asymmetric-Shape, Die-Bending, Plastic Working

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