軽金属
Online ISSN : 1880-8018
Print ISSN : 0451-5994
ISSN-L : 0451-5994
研究論文
3104アルミニウム合金冷間圧延板の深絞り成形における変形集合組織の発達挙動
小林 亮平工藤 智行田中 宏樹
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2019 年 69 巻 8 号 p. 387-392

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It is known in cold rolled 3104 aluminum alloy sheets that ears on a cup are formed by deep drawing in 0° and 180° against the rolling direction. Previous reports discussed the relationship between crystallographic texture on original sheet and the ears, however, significant correlation wasn’t necessarily observed between anisotropy of the mechanical property and the ears. In order to know the mechanism of ear forming by deep drawing, texture development by deep drawing should be considered. In the present work, development of deformation texture in cold rolled 3104 aluminum alloy sheets by deep drawing was measured by X-ray diffraction method and then analyzed. Major orientations found in the deformation texture by deep drawing were similar to rolling texture, however, intensities of the Goss and Cu components were especially increased. Lattice rotation by deep drawing was estimated by analyzing orientation distribution function (ODF) and the crystallographic mechanism of the texture development was discussed.

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