Deformation-texture evolution in deep drawing of cold-rolled 3104 aluminum alloy sheet

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  • Kobayashi Ryohei
    Research & Development Division, UACJ Corporation
  • Kudo Tomoyuki
    Research & Development Division, UACJ Corporation
  • Tanaka Hiroki
    Research & Development Division, UACJ Corporation National Institute of Advanced Industrial Science and Technology (AIST)

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  • 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
  • 3104 アルミニウム ゴウキン レイカン アツエンバン ノ フカシボリ セイケイ ニ オケル ヘンケイ シュウゴウ ソシキ ノ ハッタツ キョドウ

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Abstract

<p>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.</p>

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