Stretchable adjustable-stiffness assemblies

    公开(公告)号:US10597917B2

    公开(公告)日:2020-03-24

    申请号:US15728034

    申请日:2017-10-09

    摘要: A stretchable adjustable-stiffness assembly includes a casing and first and second friction layers. The casing can be fluidly sealed and includes an interior compartment containing a fluid. The fluid can shift between a first interior pressure and a second interior pressure less than the first interior pressure and an exterior pressure. The first and second friction layers are disposed within the interior compartment. The assembly can shift between relaxed and fixed configurations. In the relaxed configuration, the fluid has the first interior pressure, the casing is stretchable between a first dimension and a second dimension greater than the first dimension, and the assembly has a first stiffness. In the fixed configuration, the first fluid has the second interior pressure, the casing length is fixed, the first and second friction layers are engaged, and the assembly has a second stiffness greater than the first stiffness.

    METAL POURING METHOD FOR THE DIE CASTING PROCESS
    4.
    发明申请
    METAL POURING METHOD FOR THE DIE CASTING PROCESS 有权
    金属浇注方法

    公开(公告)号:US20160221079A1

    公开(公告)日:2016-08-04

    申请号:US14613991

    申请日:2015-02-04

    摘要: A method of transferring molten metal to a die casting mold is disclosed. The method includes providing a ladle with a dip well and a dispensing nozzle having a fluid metal filter formed therein as well as providing a receptacle fluidly between the ladle and the mold. Further the method includes delivering the molten metal from the ladle to the receptacle by positioning an exit face of the dispensing nozzle over the receptacle and rotating the ladle such that the exit face of the dispensing nozzle is repositioned proximal the bottom of the receptacle and conveying the molten metal that has been delivered to the receptacle into a mold cavity that is placed in fluid communication therewith.

    摘要翻译: 公开了一种将熔融金属转移到压模中的方法。 该方法包括提供具有浸蘸井的浇包和其中形成有流体金属过滤器的分配喷嘴,以及在浇包和模具之间流体地提供容器。 此外,该方法包括通过将分配喷嘴的出射面定位在容器上并旋转浇包,将熔融金属从浇包输送到容器,使得分配喷嘴的出口面重新定位在容器的底部附近并传送 已经被输送到容器的熔融金属进入与其流体连通的模腔中。

    PRODUCT DESIGN RELIABILITY WITH CONSIDERATION OF MATERIAL PROPERTY CHANGES DURING SERVICE
    5.
    发明申请
    PRODUCT DESIGN RELIABILITY WITH CONSIDERATION OF MATERIAL PROPERTY CHANGES DURING SERVICE 审中-公开
    产品设计在服务期间考虑材料性质变化的可靠性

    公开(公告)号:US20150213164A1

    公开(公告)日:2015-07-30

    申请号:US14164613

    申请日:2014-01-27

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5018

    摘要: A method of computationally determining material property changes for a cast aluminum alloy component. Accuracy of the determination is achieved by taking into consideration material property changes over the projected service life of the component. In one form, the method includes accepting time-dependent temperature data and using that data in conjunction with one or more constitutive relationships to quantify the impact of various temperature regimes or conditions on the properties of heat-treatable components and alloys. Finite element nodal analyses may be used as part of the method to map the calculated material properties on a nodal basis, while a viscoplastic model may be used to determine precipitation hardening and softening effects as a way to simulate the time and temperature dependencies of the material. The combined approach may be used to determine the material properties over the expected service life of a cast component made from such material.

    摘要翻译: 一种计算确定铸造铝合金部件的材料特性变化的方法。 确定的准确性是通过考虑到零件的预计使用寿命内的材料性质变化来实现的。 在一种形式中,该方法包括接受时间依赖性温度数据并且结合一个或多个本构关系使用该数据来量化各种温度方案或条件对可热处理组分和合金的性质的影响。 可以使用有限元节点分析作为方法的一部分,以在节点的基础上映射计算的材料性质,而粘弹性模型可用于确定沉淀硬化和软化效应,作为模拟材料的时间和温度依赖性的方式 。 组合方法可用于确定由这种材料制成的铸造部件的预期使用寿命的材料性能。

    METHODS FOR MANUFACTURING CAST COMPONENTS WITH INTEGRAL THERMAL BARRIER COATINGS

    公开(公告)号:US20200164431A1

    公开(公告)日:2020-05-28

    申请号:US16202705

    申请日:2018-11-28

    摘要: A method for applying a thermal barrier coating (TBC) to a surface of a cast component includes providing a core, applying the TBC to the core to form a coated core, disposing the coated core within a casting mold, casting metal around at least a portion of the coated core to form a casting intermediary, and removing the core from the casting intermediary to form a cast component. The TBC includes hollow microspheres comprising metal, glass, and/or ceramic materials. The hollow microspheres can have an average diameter of about 10 μm to about 100 μm. The component can be an automotive component, such as an engine intake assembly, an engine exhaust manifold, an engine block, and/or an engine cylinder head. The surface of the cast component can be one or more surfaces which define an engine intake passage, an engine exhaust passage, and an engine combustion chamber.

    MOLD ASSEMBLY AND METHOD FOR MANUFACTURING METAL CASTINGS

    公开(公告)号:US20190134704A1

    公开(公告)日:2019-05-09

    申请号:US15804315

    申请日:2017-11-06

    摘要: A mold assembly for manufacturing a metal alloy casting includes a cope and drag mold, a plurality of sand cores and a pressure core. The cope mold includes an upper portion of a mold cavity. The drag mold includes a gating system, a lower portion of the mold cavity, and an upper portion of a plurality of riser cavities. The gating system is in communication with the riser cavities to provide pressurized liquid metal alloy to the riser cavities. The pressure core has a plurality of protrusions that are disposed in each of the upper portion of the plurality of riser cavities.