Damage tolerant aluminum alloy products useful for aircraft applications
such as skin
    1.
    发明授权
    Damage tolerant aluminum alloy products useful for aircraft applications such as skin 失效
    耐磨铝合金产品适用于飞机应用如皮肤

    公开(公告)号:US5213639A

    公开(公告)日:1993-05-25

    申请号:US847352

    申请日:1992-03-06

    IPC分类号: B32B15/01 C22C21/16 C22F1/057

    摘要: A method of producing a sheet product and improved products having improved levels of toughness and fatigue crack growth resistance at good strength levels. The method comprises providing an aluminum base alloy containing 4 to 4.5% Cu, 1.2 to 1.5% Mg, 0.4 to 0.6% Mn, 0.12% max. Fe, 0.1% max. Si, the remainder aluminum, incidental elements and impurities and hot rolling the alloy, heating the alloy to above 910.degree. F. and additionally hot rolling it in a range of about 600.degree. to 900.degree. F., solution heat treating, preferably for a time of less than about 15 minutes at a solution heat treating temperature, and rapidly cooling and naturally aging. The invention products have very good combinations of strength together with high fracture toughness or low fatigue crack growth rate, or both, making them well suited for aerospace applications such as fuselage skin. The products preferably include a corrosion protecting cladding of aluminum or aluminum alloy.

    摘要翻译: 一种生产片材产品的方法和具有改进的韧性水平和耐疲劳裂纹扩展性的改良产品,具有良好的强度水平。 该方法包括提供含有4至4.5%的Cu,1.2至1.5%的Mg,0.4至0.6%的Mn,最大0.12%的铝基合金。 Fe,最大0.1% Si,剩余的铝,附带元素和杂质,热轧合金,将合金加热至910°F以上,另外在约600°至900°F的范围内进行热轧,进行固溶热处理,优选为 时间在固溶热处理温度下小于约15分钟,并快速冷却和自然老化。 本发明产品具有非常好的强度组合以及高断裂韧性或低疲劳裂纹扩展速率,或两者兼有,使得它们非常适合航空航天应用如机身皮肤。 产品优选包括铝或铝合金的腐蚀保护包层。

    Process to improve 6XXX alloys by reducing altered density sites
    3.
    发明授权
    Process to improve 6XXX alloys by reducing altered density sites 有权
    通过减少改变的密度位点来改进6XXX合金的方法

    公开(公告)号:US06911099B2

    公开(公告)日:2005-06-28

    申请号:US10283004

    申请日:2002-10-29

    IPC分类号: C22F1/05 C22C21/08

    CPC分类号: C22F1/05 Y10T428/12764

    摘要: A process for improving 6XXX alloys, such as 6013, preferably includes heating, hot rolling, inter-rolling thermal treatment at a very high temperature such as 1020° F. or more, again hot rolling (with or without subsequent continuous hot rolling or cold rolling or both), solution heat treating and artificial aging. The initial heating, inter-rolling, thermal treatment and solution treatment, especially the latter two, are carried out at very high temperatures such as 1030° F. Each aforesaid hot rolling stage produces substantial metal thickness reduction. The improved sheet or plate product has a substantially reduced occurrence of reduced density features revealed in scanning electron microscope examination at 500X and exhibits improved (reduced) fatigue crack growth rate providing an advantage in aerospace applications such as fuselage skin, especially fuselage belly skin.

    摘要翻译: 用于改进6XXX合金(例如6013)的方法优选包括在非常高的温度(例如1020°F或更高)下进行加热,热轧,互连式热处理,再次热轧(连续或不用连续热轧或冷却 轧制或两者),固溶热处理和人造时效。 最初的加热,交联,热处理和固溶处理,特别是后两种,在非常高的温度例如1030°F下进行。每个上述的热轧阶段都产生大量的金属厚度减少。 改进的片材或板材产品在500X扫描电子显微镜检查中显示的减少的密度特征显着降低,并且显示改善的(降低的)疲劳裂纹扩展速率,这在航空航天应用如机身皮肤,特别是机身腹部皮肤中提供优点。

    AGING OF ALUMINUM ALLOYS FOR IMPROVED COMBINATION OF FATIGUE PERFORMANCE AND STRENGTH
    7.
    发明申请
    AGING OF ALUMINUM ALLOYS FOR IMPROVED COMBINATION OF FATIGUE PERFORMANCE AND STRENGTH 有权
    铝合金老化改善疲劳性能和强度的组合

    公开(公告)号:US20120325382A1

    公开(公告)日:2012-12-27

    申请号:US13604432

    申请日:2012-09-05

    IPC分类号: C22F1/057

    CPC分类号: C22F1/04 C22C21/00 C22F1/057

    摘要: Aluminum alloys having an improved combination of properties are provided. In one aspect, a method for producing the alloy includes preparing an aluminum alloy for artificial aging and artificially aging the alloy. In one embodiment, the artificially aging step includes aging the aluminum alloy at a temperature of at least about 250° F., and final aging the aluminum alloy at a temperature of not greater than about 225° F. and for at least about 20 hours.

    摘要翻译: 提供具有改进的性能组合的铝合金。 一方面,合金的制造方法包括制备用于人造时效的铝合金并人工老化合金。 在一个实施方案中,人造老化步骤包括在至少约250°F的温度下老化铝合金,并在不大于约225°F的温度下使铝合金最终老化并持续至少约20小时 。

    METAL SHEETS AND PLATES HAVING FRICTION-REDUCING TEXTURED SURFACES AND METHODS OF MANUFACTURING SAME
    8.
    发明申请
    METAL SHEETS AND PLATES HAVING FRICTION-REDUCING TEXTURED SURFACES AND METHODS OF MANUFACTURING SAME 有权
    具有摩擦减小表面的金属片和板及其制造方法

    公开(公告)号:US20120227453A1

    公开(公告)日:2012-09-13

    申请号:US13425015

    申请日:2012-03-20

    IPC分类号: B21C23/24

    摘要: Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing these metal sheets and plates are disclosed herein. In an embodiment, there is provided a transportation vessel that includes at least one metal product having at least one surface that is substantially grooved, wherein the substantially grooved surface forms a riblet topography, the riblet topography including a multiplicity of adjacent permanently rolled longitudinal riblets running along at least a part of the surface, and wherein the riblet topography is coated with at least one coating sufficiently designed and applied to preserve the riblet topography. In an embodiment, the multiplicity of adjacent permanently rolled longitudinal riblets results in a friction-reducing textured surface. In an embodiment, metal product is used in fabricating at least a portion of an aircraft. In an embodiment, metal product is used in fabricating at least a portion of a rotor blade.

    摘要翻译: 本文公开了具有减摩纹理表面的金属板和板以及制造这些金属板和板的方法。 在一个实施方案中,提供了一种运输容器,其包括至少一个具有至少一个基本上开槽的表面的金属制品,其中所述基本上开槽的表面形成肋状形貌,所述肋状拓扑包括多个相邻的永久卷绕的纵向肋条 沿着所述表面的至少一部分,并且其中所述肋状形貌涂覆有至少一个被充分设计并用于保留所述肋状形貌的涂层。 在一个实施例中,多个相邻的永久卷绕的纵向肋条导致减少摩擦的纹理表面。 在一个实施例中,金属制品用于制造飞行器的至少一部分。 在一个实施例中,金属制品用于制造转子叶片的至少一部分。

    Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing same
    9.
    发明授权
    Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing same 有权
    具有减摩纹理表面的金属板和板及其制造方法

    公开(公告)号:US08578747B2

    公开(公告)日:2013-11-12

    申请号:US13425015

    申请日:2012-03-20

    IPC分类号: B21D22/08

    摘要: Metal sheets and plates having friction-reducing textured surfaces and methods of manufacturing these metal sheets and plates are disclosed herein. In an embodiment, there is provided a transportation vessel that includes at least one metal product having at least one surface that is substantially grooved, wherein the substantially grooved surface forms a riblet topography, the riblet topography including a multiplicity of adjacent permanently rolled longitudinal riblets running along at least a part of the surface, and wherein the riblet topography is coated with at least one coating sufficiently designed and applied to preserve the riblet topography. In an embodiment, the multiplicity of adjacent permanently rolled longitudinal riblets results in a friction-reducing textured surface. In an embodiment, metal product is used in fabricating at least a portion of an aircraft. In an embodiment, metal product is used in fabricating at least a portion of a rotor blade.

    摘要翻译: 本文公开了具有减摩纹理表面的金属板和板以及制造这些金属板和板的方法。 在一个实施方案中,提供了一种运输容器,其包括至少一个具有至少一个基本上开槽的表面的金属制品,其中所述基本上开槽的表面形成肋状形貌,所述肋状拓扑包括多个相邻的永久卷绕的纵向肋条 沿着所述表面的至少一部分,并且其中所述肋状形貌涂覆有至少一个被充分设计并用于保留所述肋状形貌的涂层。 在一个实施例中,多个相邻的永久卷绕的纵向肋条导致减少摩擦的纹理表面。 在一个实施例中,金属制品用于制造飞行器的至少一部分。 在一个实施例中,金属制品用于制造转子叶片的至少一部分。

    Aluminum-copper-magnesium alloys having ancillary additions of lithium
    10.
    发明授权
    Aluminum-copper-magnesium alloys having ancillary additions of lithium 有权
    具有辅助添加锂的铝 - 铜 - 镁合金

    公开(公告)号:US07438772B2

    公开(公告)日:2008-10-21

    申请号:US10678290

    申请日:2003-10-03

    IPC分类号: C22C21/12

    CPC分类号: C22C21/16

    摘要: An aluminum-copper-magnesium alloy having ancillary additions of lithium. The alloy composition includes from about 3 to about 5 weight percent Cu, from about 0.5 to about 2 weight percent Mg, and from about 0.01 to about 0.9 weight percent Li. The combined amount of Cu and Mg is maintained below a solubility limit of the aluminum alloy. The alloys possess improved combinations of fracture toughness and strength, and also exhibit good fatigue crack growth resistance.

    摘要翻译: 具有辅助添加锂的铝 - 铜 - 镁合金。 合金组成包括约3至约5重量%的Cu,约0.5至约2重量%的Mg和约0.01至约0.9重量百分比的Li。 Cu和Mg的组合量保持在铝合金的溶解度极限以下。 该合金具有改善的断裂韧性和强度的组合,并且还表现出良好的疲劳裂纹扩展性。