アルミニウム合金の異方性と成形性 １０５０アルミニウム薄板の拡幅圧延
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概要
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A rolling method to increase the width of materials would have advantages in multi-width strip production, yield efficiency, productivity and texture control. The authors proposed a new method for spread rolling of thin and wide strip. The method employs 3-pass caliber rolling, where several portions of the width are reduced. In this study, the method was applied to commercial 1050 Aluminum strips. Necking or fracture occurred at thin portions near edges. In order to prevent the occurrence of defects, the method is improved to the 5-pass rolling method. It is found that the 5-pass rolling is effective in lateral spread as well as in preventing in defects formation. Thin aluminum strips with an aspect ratio (width/thickness) of 100 are successfully widened up to 3% by 30%–reduction rolling. As for the mechanical properties of rolled strips, the spread strips are slightly work-hardened than those of the flat strip. Development of rolling texture is not so remarkable in the spread strips as that in the flat-rolled strips. It is concluded that the proposed spread rolling method can control the texture as well as the width of rolled strips.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
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