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53 条记录 (耗时 0.033 秒)

    Friction stir welding apparatus and associated thermal management systems and methods
    41.
    发明授权
    Friction stir welding apparatus and associated thermal management systems and methods 有权
    摩擦搅拌焊接设备及相关热管理系统及方法

    公开(公告)号：US07121448B2

    公开(公告)日：2006-10-17

    申请号：US10651397

    申请日：2003-08-29

    申请人： Pazhayannur Ramanathan Subramanian ,  Earl Claude Helder ,  Timothy Joseph Trapp ,  Mark Lawrence Hunt ,  Timothy V Stotler

    发明人： Pazhayannur Ramanathan Subramanian ,  Earl Claude Helder ,  Timothy Joseph Trapp ,  Mark Lawrence Hunt ,  Timothy V Stotler

    IPC分类号： B23K20/12 ,  B23K37/00 ,  B23K31/02

    CPC分类号： B23K20/126 ,  B23K20/122 ,  B23K20/1235 ,  B23K37/06

    摘要： The present invention provides a friction stir welding apparatus and associated thermal management systems and methods for joining one or more similar or dissimilar materials forming a workpiece along a joint to be welded. The friction stir welding apparatus includes a pin tool apparatus selectively disposed adjacent to and in direct contact with a first surface of the workpiece along the joint to be welded and a heating member disposed adjacent to a second surface of the workpiece along the joint to be welded, the heating member operable for controllably heating at least a portion of the workpiece adjacent to the joint to be welded. The friction stir welding apparatus also includes an annular spindle having an interior portion and an axis, the interior portion of the annular spindle at least partially defining one or more cooling channels, the one or more cooling channels operable for containing a cooling fluid. The friction stir welding apparatus further includes a shoulder disposed adjacent to the annular spindle and substantially aligned with the axis of the annular spindle and a pin tool disposed adjacent to the shoulder and substantially aligned with the axis of the annular spindle. The cooling fluid is operable for cooling at least one of the shoulder and the pin tool.

    摘要翻译： 本发明提供了一种摩擦搅拌焊接装置和相关联的热管理系统和方法，用于沿着待焊接的接头接合形成工件的一种或多种相似或不同的材料。 摩擦搅拌焊接装置包括：销工具装置，其选择性地设置为沿着待焊接的接头与工件的第一表面相邻并直接接触;以及加热构件，其沿着待焊接的接头设置在工件的第二表面附近 ，所述加热构件可操作用于可控地加热邻近待焊接接头的工件的至少一部分。 摩擦搅拌焊接设备还包括具有内部部分和轴线的环形主轴，环形主轴的内部部分至少部分地限定一个或多个冷却通道，所述一个或多个冷却通道可操作用于容纳冷却流体。 所述摩擦搅拌焊接装置还包括邻近所述环形心轴设置并与所述环形心轴的轴线基本对齐的肩部和邻近所述肩部设置并基本上与所述环形心轴的轴线对准的销工具。 冷却流体可操作用于冷却肩部和销钉工具中的至少一个。

    Nickel-Based Superalloys and Articles
    45.
    发明申请
    Nickel-Based Superalloys and Articles 审中-公开
    镍基超合金和制品

    公开(公告)号：US20110076180A1

    公开(公告)日：2011-03-31

    申请号：US12570654

    申请日：2009-09-30

    申请人： Akane Suzuki ,  Michael Francis Xavier Gigliotti, JR. ,  Shyh-Chin Huang ,  Pazhayannur Ramanathan Subramanian

    发明人： Akane Suzuki ,  Michael Francis Xavier Gigliotti, JR. ,  Shyh-Chin Huang ,  Pazhayannur Ramanathan Subramanian

    IPC分类号： C22C19/05 ,  B22D27/04

    CPC分类号： C22C19/057 ,  B22D27/045 ,  F01D5/28 ,  F01D9/041 ,  F05D2220/32 ,  F05D2240/35 ,  F05D2300/175 ,  F23R3/42

    摘要： Rhenium-free nickel based alloys are provided. More particularly, the alloys comprise preferred levels and ratios of elements so as to achieve good high temperature strength of both gamma matrix phase and gamma prime precipitates, as well as good environmental resistance, without using rhenium. When cast and directionally solidified into single crystal form, the alloys exhibit creep and oxidation resistance substantially equivalent to or better than rhenium-bearing single-crystal alloys. Further, the alloys can be processed by directional solidification into articles in single crystal form or columnar structure comprising fine dendrite arm spacing, e.g., less than 400 μm, if need be, so that further improvements in mechanical properties in the articles can be seen.

    摘要翻译： 提供无铼镍基合金。 更具体地，合金包括优选的含量和元素比例，以便在不使用铼的情况下实现γ基质相和γ初始沉淀物的良好的高温强度以及良好的耐环境性。 当铸造和定向凝固成单晶形式时，合金具有基本上等于或优于含铼单晶合金的蠕变和抗氧化性能。 此外，如果需要，合金可以通过定向固化加工成单晶形状或柱状结构的制品，包括细小的枝晶臂间距，例如小于400μm，从而可以看到制品中机械性能的进一步改善。

    TITANIUM-CONTAINING ARTICLE AND METHOD FOR MAKING
    46.
    发明申请
    TITANIUM-CONTAINING ARTICLE AND METHOD FOR MAKING 审中-公开
    含钛的制品和制造方法

    公开(公告)号：US20100326571A1

    公开(公告)日：2010-12-30

    申请号：US12494405

    申请日：2009-06-30

    申请人： Andrew David Deal ,  Radhakrishna Badekila Bhat ,  Richard DiDomizio ,  Judson Sloan Marte ,  Pazhayannur Ramanathan Subramanian

    发明人： Andrew David Deal ,  Radhakrishna Badekila Bhat ,  Richard DiDomizio ,  Judson Sloan Marte ,  Pazhayannur Ramanathan Subramanian

    IPC分类号： C22C14/00 ,  C22F1/18

    CPC分类号： C22C14/00 ,  C22C1/02 ,  C22F1/183

    摘要： An article made of an alloy, and a method for making the article, are presented. The alloy is substantially free of martensite, and comprises the following composition: at least about 75 weight percent titanium; up to about 10 weight percent of a beta stabilizing component; from about 3 weight percent to about 15 weight percent of an alpha stabilizing component; and from about 0.05 weight percent to about 5 weight percent germanium. Another embodiment is a method for fabricating an article. The method comprises providing a billet made of an alloy as described above, and stabilizing the billet microstructure to form a stabilized billet; the method may further comprise superplastically processing the stabilized billet to form a processed item.

    摘要翻译： 介绍了一种合金制成的制品及其制造方法。 该合金基本上不含马氏体，并且包含以下组成：至少约75重量％的钛; 至多约10重量％的β稳定组分; 约3重量％至约15重量％的α稳定组分; 和约0.05重量％至约5重量％的锗。 另一实施例是用于制造制品的方法。 该方法包括提供如上所述的由合金制成的坯料，并且使坯料微结构稳定以形成稳定的坯料; 该方法还可以包括超塑性处理稳定的坯料以形成经处理的物品。

    Method of forming a structural component having a nano sized/sub-micron homogeneous grain structure
    50.
    发明授权
    Method of forming a structural component having a nano sized/sub-micron homogeneous grain structure 失效
    形成具有纳米尺寸/亚微米均匀晶粒结构的结构组分的方法

    公开(公告)号：US07296453B1

    公开(公告)日：2007-11-20

    申请号：US11285853

    申请日：2005-11-22

    申请人： Ramkumar Kashyap Oruganti ,  Pazhayannur Ramanathan Subramanian ,  Judson Sloan Marte

    发明人： Ramkumar Kashyap Oruganti ,  Pazhayannur Ramanathan Subramanian ,  Judson Sloan Marte

    IPC分类号： B21C23/00

    CPC分类号： B21C23/002 ,  B21C23/001 ,  B21C23/22

    摘要： A method of making nano/sub-micron sized grains in a work piece material having a lateral side has the steps of providing a die. The die has an entrance channel with a longitudinal axis and an exit channel. The entrance channel and the exit channel are connected to one another to form an angle. The method has the step of providing a first sacrificial material with a complementary size to the work piece and placing the sacrificial first material and the work piece in an entrance channel. The first sacrificial material and the work piece are aligned with the longitudinal axis. The method has the step of extruding the combination of the first sacrificial material, and the work piece through the intersection of the entrance and the exit channels. The resulting shear deformation forms the nano/sub-micron sized grains in the work piece. This configuration reduces frictional effects thereby producing homogenous nano grain structure. This configuration reduces applied load and enables equal channel angular extrusion of thin sheets.

    摘要翻译： 在具有侧面的工件材料中制造纳米/亚微米尺寸的颗粒的方法具有提供模具的步骤。 模具具有纵向轴线和出口通道的入口通道。 入口通道和出口通道彼此连接形成一个角度。 该方法具有提供具有与工件互补的尺寸的第一牺牲材料并将牺牲的第一材料和工件放置在入口通道中的步骤。 第一牺牲材料和工件与纵向轴线对齐。 该方法具有通过入口和出口通道的交叉部分挤出第一牺牲材料和工件的组合的步骤。 所产生的剪切变形在工件中形成纳米/亚微米尺寸的颗粒。 这种结构降低摩擦效应，从而产生均匀的纳米晶粒结构。 该配置减少了施加的负载，并实现了薄板的等通道角挤压。