Aluminum alloy sheet with excellent formability and paint bake hardenability and method for production thereof
    1.
    发明申请
    Aluminum alloy sheet with excellent formability and paint bake hardenability and method for production thereof 审中-公开
    具有优异成形性的铝合金板和油漆烘烤淬透性及其制造方法

    公开(公告)号:US20080178967A1

    公开(公告)日:2008-07-31

    申请号:US12077853

    申请日:2008-03-21

    IPC分类号: C22C21/08

    摘要: A sheet of a 6000 type aluminum alloy containing Si and Mg as main alloy components and having an excellent formability sufficient to allow flat hemming, excellent resistance to denting, and good hardenability during baking a coating, which exhibits an anisotropy of Lankford values of more than 0.4 or the strength ratio for cube orientations of the texture thereof of 20 or more, and exhibits a minimum bend radius of 0.5 mm or less at 180° bending, even when the offset yield strength thereof exceeds 140 MPa through natural aging; and a method for producing the sheet of the aluminum alloy, which includes the steps of subjecting an ingot to a homogenization treatment, cooling to a temperature lower than 350° C. at a cooling rate of 100° C./hr or more, optionally to room temperature, heating again to a temperature of 300 to 500° C. and subjecting it to hot rolling, cold rolling the hot rolled product, and subjecting the cold rolled sheet to a solution treatment at a temperature of 400° C. or higher, followed by quenching.

    摘要翻译: 一种含有Si和Mg作为主要合金组分的6000型铝合金片材,其具有足以允许平坦折边,优异的耐凹陷性和在烘烤涂层中的良好淬透性的优异的成型性,其显示出兰肯福特值的各向异性 0.4或其立体取向的强度比为20以上,并且即使通过自然时效,其偏移屈服强度超过140MPa时,弯曲弯曲180°时的最小弯曲半径为0.5mm以下。 以及铝合金板的制造方法,其特征在于,包括以下步骤:对锭进行均质化处理,以100℃/小时以上的冷却速度冷却至350℃以下的温度 至室温,再次加热至300〜500℃的温度,对其进行热轧,冷轧,将该冷轧板在400℃以上的温度下进行固溶处理 ,然后淬火。

    Aluminum alloy plate excelling in filiform corrosion resistance and method of fabricating same
    4.
    发明授权
    Aluminum alloy plate excelling in filiform corrosion resistance and method of fabricating same 有权
    铝合金板优良的丝状耐腐蚀性及其制造方法

    公开(公告)号:US06464805B2

    公开(公告)日:2002-10-15

    申请号:US09817765

    申请日:2001-03-26

    IPC分类号: C22C2108

    摘要: An Al—Mg—Si—Cu aluminum alloy plate excelling in strength and formability and exhibiting improved filiform corrosion resistance which is suitably used for automotive body panels. The aluminum alloy plate contains 0.25-0.6% of Mg (mass %, hereinafter the same), 0.9-1.1% of Si, 0.6-1.0% of Cu, and at least one of 0.20% or less of Mn and 0.10% or less of Cr, with the balance consisting of Al and impurities, wherein the number of Q phases (Cu—Mg—Si—Al phases) with a size of 2 &mgr;m or more in diameter present in a matrix is 150 per mm2 or more. The aluminum alloy plate is fabricated by homogenizing an ingot of an aluminum alloy having the above composition at 530° C. or more, cooling the ingot to 450° C. or less at a cooling rate of 30° C./hour or less, hot-rolling the ingot, cold-rolling the hot-rolled product, and providing the cold-rolled product with a solution heat treatment.

    摘要翻译: Al-Mg-Si-Cu铝合金板具有优异的强度和成形性,并且表现出改善的丝状耐腐蚀性,适用于汽车车身面板。 铝合金板含有0.25-0.6%的Mg(质量%,以下相同),0.9-1.1%的Si,0.6-1.0%的Cu和0.20%以下的Mn和0.10%以下的至少一种 的Cr,余量由Al和杂质构成,其中存在于基体中的直径为2μm以上的Q相(Cu-Mg-Si-Al相)的数量为150个/ mm 2以上。 铝合金板通过在530℃以上均匀化具有上述成分的铝合金锭制成,以30℃/小时以下的冷却速度将锭冷却至450℃以下, 对锭进行热轧,冷轧热轧制品,并对冷轧制品进行固溶热处理。

    METHOD OF JOINING HEAT-TREATABLE ALUMINUM ALLOY MEMBERS BY FRICTION STIR WELDING
    5.
    发明申请
    METHOD OF JOINING HEAT-TREATABLE ALUMINUM ALLOY MEMBERS BY FRICTION STIR WELDING 审中-公开
    通过摩擦焊接接合热处理铝合金构件的方法

    公开(公告)号:US20090250144A1

    公开(公告)日:2009-10-08

    申请号:US12486950

    申请日:2009-06-18

    IPC分类号: B23K31/02 B23K20/12 C22F1/04

    摘要: A method of joining heat-treatable aluminum alloy members by friction stir welding, including the steps of: a T4-treatment-performing step of performing a T4 treatment on heat-treatable aluminum alloy members so as to impart T4 temper to the heat-treatable aluminum alloy members; a joining step of joining the heat-treatable aluminum alloy members with T4 temper by friction stir welding to provide a joined product; and a reversion-treatment-performing step of performing a reversion treatment, the reversion-treatment-performing step being carried out prior to or after the joining step.

    摘要翻译: 一种通过摩擦搅拌焊接接合可热处理的铝合金构件的方法,包括以下步骤:对可热处理的铝合金构件进行T4处理以便对可热处理的铝合金构件施加T4回火的T4处理执行步骤 铝合金构件; 接合步骤,通过摩擦搅拌焊接将可热处理的铝合金构件与T4回火接合,以提供接合的产品; 以及进行退回处理的退回处理执行步骤,所述退回处理执行步骤在所述接合步骤之前或之后进行。

    Aluminum alloy material exhibiting excellent bendability and method for producing the same

    公开(公告)号:US09834833B2

    公开(公告)日:2017-12-05

    申请号:US14118789

    申请日:2011-10-06

    IPC分类号: C22F1/057 C22C21/16 C22C21/14

    CPC分类号: C22F1/057 C22C21/14 C22C21/16

    摘要: An aluminum alloy material exhibiting excellent bendability can be produced without performing a straightening step, and can be bent without developing orange peel. The aluminum alloy material is a T4-tempered material formed of an Al—Cu—Mg—Si alloy including 1.0 to 2.5 mass % of Cu, 0.5 to 1.5 mass % of Mg, and 0.5 to 1.5 mass % of Si, with the balance being aluminum and unavoidable impurities, a matrix that forms an inner part of the aluminum alloy material having a microstructure formed by recrystallized grains having an average crystal grain size of 200 μm or less, and the aluminum alloy material having a ratio of tensile strength/yield strength determined by a tensile test of 1.5 or more.

    HIGH-STRENGTH ALUMINUM ALLOY PRODUCT AND METHOD OF PRODUCING THE SAME
    10.
    发明申请
    HIGH-STRENGTH ALUMINUM ALLOY PRODUCT AND METHOD OF PRODUCING THE SAME 审中-公开
    高强度铝合金产品及其生产方法

    公开(公告)号:US20120312427A1

    公开(公告)日:2012-12-13

    申请号:US13471938

    申请日:2012-05-15

    摘要: A high-strength Al—Cu—Mg—Si aluminum alloy product obtained by extrusion is characterized in that the microstructure of the entire surface of the cross-section of the aluminum alloy product is formed of recrystallized grains, the grains have an average aspect ratio (L/t) of 5.0 or less and the orientation density of the grains in the microstructure, for which the normal direction to the {001} plane is parallel to the extrusion direction in comparison with the grains orientated to random orientations, is 50 or less. The high-strength Al—Cu—Mg—Si aluminum alloy product is characterized in that rod-shaped precipitates are arranged in the grains of the matrix in the direction, the precipitates have an average length of 10 to 70 nm and a maximum length of 120 nm or less, and the number density of the precipitates in the [001] direction measured from the (001) plane is 500 or more per square micrometer.

    摘要翻译: 通过挤出获得的高强度Al-Cu-Mg-Si铝合金产品的特征在于,铝合金产品的横截面的整个表面的微观结构由再结晶晶粒形成,晶粒具有平均纵横比 (L / t)为5.0以下,与取向为随机取向的晶粒相比,{001}面与{001}面的法线方向平行的微观结构的晶粒取向密度为50或 减。 高强度Al-Cu-Mg-Si铝合金产品的特征在于,在<100>方向上的基体颗粒中设置棒状析出物,析出物的平均长度为10〜70nm, 最大长度为120nm以下,从(001)面测定的[001]方向的析出物的数密度为每平方微米500以上。