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    Superplastic-forming aluminum alloy plate and production method therefor
    1.
    发明授权
    Superplastic-forming aluminum alloy plate and production method therefor 有权

    公开(公告)号：US11499209B2

    公开(公告)日：2022-11-15

    申请号：US15517518

    申请日：2015-10-08

    申请人： UACJ Corporation

    发明人： Tomoyuki Kudo ,  Yoshifumi Shinzato ,  Ryo Kuramoto

    IPC分类号： C22C21/06 ,  B22D11/00 ,  C22F1/047 ,  C22C21/00 ,  B22D11/124 ,  B22D11/049 ,  C22F1/00 ,  C21D8/02

    摘要： The present disclosure shows a superplastic-forming aluminum alloy plate that has excellent properties for superplastic-forming, such as blow forming, and that has excellent surface properties after forming. Shown is a superplastic-forming aluminum alloy plate and a production method therefor, the superplastic-forming aluminum alloy plate being characterized by comprising an aluminum alloy which contains 2.0 to 6.0 mass % Mg, 0.5 to 1.8 mass % Mn and 0.40 mass % or less Cr and in which the balance consists of Al and unavoidable impurities, wherein the unavoidable impurities are restricted to have 0.20 mass % or less Fe and 0.20 mass % or less Si, the 0.2% proof stress is 340 MPa or more, and the density of intermetallic compounds having an equivalent circular diameter of 5 to 15 μm at the RD-TD plane which extends along the center of the plate cross-section is 50 to 400 pieces/mm2.

    Superplastic-forming aluminum alloy plate and production method therefor
    2.
    发明授权
    Superplastic-forming aluminum alloy plate and production method therefor 有权

    公开(公告)号：US11459642B2

    公开(公告)日：2022-10-04

    申请号：US15517518

    申请日：2015-10-08

    申请人： UACJ Corporation

    发明人： Tomoyuki Kudo ,  Yoshifumi Shinzato ,  Ryo Kuramoto

    IPC分类号： C22C21/06 ,  B22D11/00 ,  C22F1/047 ,  C22C21/00 ,  B22D11/124 ,  B22D11/049 ,  C22F1/00 ,  C21D8/02

    摘要： The present disclosure shows a superplastic-forming aluminum alloy plate that has excellent properties for superplastic-forming, such as blow forming, and that has excellent surface properties after forming. Shown is a superplastic-forming aluminum alloy plate and a production method therefor, the superplastic-forming aluminum alloy plate being characterized by comprising an aluminum alloy which contains 2.0 to 6.0 mass % Mg, 0.5 to 1.8 mass % Mn and 0.40 mass % or less Cr and in which the balance consists of Al and unavoidable impurities, wherein the unavoidable impurities are restricted to have 0.20 mass % or less Fe and 0.20 mass % or less Si, the 0.2% proof stress is 340 MPa or more, and the density of intermetallic compounds having an equivalent circular diameter of 5 to 15 μm at the RD-TD plane which extends along the center of the plate cross-section is 50 to 400 pieces/mm2.

    ALUMINUM ALLOY SHEET FOR BLOW MOLDING AND PRODUCTION METHOD THEREFOR
    4.
    发明申请
    ALUMINUM ALLOY SHEET FOR BLOW MOLDING AND PRODUCTION METHOD THEREFOR 审中-公开
    用于吹塑成型的铝合金板及其制造方法

    公开(公告)号：US20150152536A1

    公开(公告)日：2015-06-04

    申请号：US14411229

    申请日：2013-06-26

    申请人： UACJ CORPORATION

    发明人： Tomoyuki Kudo ,  Makoto Saga

    IPC分类号： C22F1/043 ,  C22C21/08 ,  C22C21/04 ,  C22F1/047 ,  C22F1/05

    CPC分类号： C22F1/043 ,  C22C21/00 ,  C22C21/02 ,  C22C21/04 ,  C22C21/08 ,  C22F1/00 ,  C22F1/04 ,  C22F1/047 ,  C22F1/05

    摘要： Provided is an aluminum alloy plate for blow molding comprising: 0.3% by mass or more and 1.8% by mass or less of Mg; 0.6% by mass or more and 1.6% by mass or less of Si; and 0.2% by mass or more and 1.2% by mass or less of Mn; wherein, in at least one surface of the aluminum alloy plate for blow molding, X and Y satisfy the following relations: 0.10≦X, and, Y≦−8.0X+10.8; wherein X represents the ratio of regions whose valley depth in a roughness curve is 0.3 μm or more; and Y represents the yield stress upon deformation of the aluminum alloy plate for blow molding under predetermined conditions.

    摘要翻译： 本发明提供一种吹塑成型用铝合金板，其特征在于，含有0.3质量％以上且1.8质量％以下的Mg， 0.6质量％以上且1.6质量％以下的Si; 和0.2质量％以上且1.2质量％以下的Mn; 其中，在用于吹塑的铝合金板的至少一个表面中，X和Y满足以下关系：0.10＆nlE; X，Y＆nlE; -8.0X + 10.8; 其中X表示粗糙度曲线中的谷深度为0.3μm以上的区域的比率; Y表示在规定条件下用于吹塑的铝合金板的变形时的屈服应力。

    HOT FORMING ALUMINUM ALLOY PLATE AND PRODUCTION METHOD THEREFOR
    6.
    发明申请
    HOT FORMING ALUMINUM ALLOY PLATE AND PRODUCTION METHOD THEREFOR 审中-公开

    公开(公告)号：US20170247781A1

    公开(公告)日：2017-08-31

    申请号：US15442128

    申请日：2017-02-24

    申请人： UACJ CORPORATION

    发明人： Yoshifumi Shinzato ,  Tomoyuki Kudo

    IPC分类号： C22F1/043 ,  B22D21/00 ,  B21D26/021 ,  C22C21/02

    CPC分类号： C22F1/043 ,  B21D26/021 ,  B22D21/007 ,  C22C21/02

    摘要： The present invention provides an Al—Mg—Si-based hot forming aluminum alloy plate which has not only high age-hardening property but also a high m value in a high strain rate range and excellent surface properties after forming and which is suitable for hot forming. The hot forming aluminum alloy plate comprises an aluminum alloy comprising 0.3 to 1.8 mass % Mg, 0.6 to 2.0 mass % Si and 0.04 to 0.20 mass % Fe. In the aluminum alloy, Mn content is restricted to 0.030 mass % or less, and Cr content is restricted to 0.030 mass % or less, and a balance comprises Al and unavoidable impurities. The hot forming aluminum alloy plate has an electrical conductivity of 60% or less according to IACS %. A production method of the hot forming aluminum alloy plate is also provided.