ALUMINUM ALLOY SHEET
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United States of America Patent
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Mar 4, 2016
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Mar 4, 2015
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A 7xxx-series aluminum alloy sheet produced by a common procedure is allowed to include a surface part having a texture with grown Cube orientation, and a central part having a texture with grown S orientation. Namely, the surface part and the thickness-central part in the sheet are allowed to have different textures that are optimal respectively for shock absorption and for strength. This allows the aluminum alloy sheet to have better shock absorption upon automobile collision without lowering its strength, where the shock absorption is evaluated by a VDA bend test as illustrated in FIG. 1.
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