METHOD OF PRODUCING A THREE-DIMENSIONAL COMPONENT
    8.
    发明申请
    METHOD OF PRODUCING A THREE-DIMENSIONAL COMPONENT 审中-公开
    生产三维组件的方法

    公开(公告)号:US20160184897A1

    公开(公告)日:2016-06-30

    申请号:US15065883

    申请日:2016-03-10

    申请人: Caterpillar Inc.

    摘要: A method of producing a hardened component includes forming a 3-dimensional (3D) structure using an additive manufacturing process. The method includes forming the 3D structure using the additive manufacturing process and defining one or more passages there within. The method further includes heating the 3D structure in a pre-defined chamber to increase a temperature of the 3D structure to a pre-determined value. The method thereafter includes performing at least one of: infusing the plurality of passages defined in the heated 3D structure with a gaseous medium for at least a pre-defined period of time, and quenching the plurality of passages in the 3D structure with a quenching fluid for a pre-defined period of time.

    摘要翻译: 制造硬化部件的方法包括使用添加剂制造工艺形成3维(3D)结构。 该方法包括使用添加剂制造过程形成3D结构并且在其中定义一个或多个通道。 该方法还包括在预定义的室中加热3D结构以将3D结构的温度增加到预定值。 此后的方法包括执行以下至少之一:将加热的3D结构中限定的多个通道用气态介质注入至少预先确定的时间段,并且用淬火流体淬火3D结构中的多个通道 预定义的时间段。

    Method for preparing vanadium-nitrogen alloy
    9.
    发明授权
    Method for preparing vanadium-nitrogen alloy 有权
    制备钒 - 氮合金的方法

    公开(公告)号:US09227847B2

    公开(公告)日:2016-01-05

    申请号:US14049242

    申请日:2013-10-09

    申请人: Jianwei Zheng

    摘要: A method for preparing vanadium-nitrogen alloy, the method including: 1) mixing and pressing a vanadium-containing compound, an agglutinant, and a carbon-premixed reducing agent to yield a spherical raw material, and air drying the spherical raw material; and 2) mixing the spherical raw material with a granular carbonaceous reducing agent to yield a mixture, and continually feeding the mixture into a shaft kiln of a medium frequency induction furnace, purging the shaft kiln with pure nitrogen and maintaining a furnace pressure at between 0.01 and 0.03 mPa, drying the mixture at a temperature of between 100 and 600° C., carbonizing and nitriding at a temperature of between 900 and 1350° C., cooling the resulting product to less than 100° C., and discharging the product.

    摘要翻译: 一种制备钒 - 氮合金的方法,该方法包括:1)将含钒化合物,凝集剂和碳预混合还原剂混合并压制得到球形原料,并对球形原料进行空气干燥; 2)将球形原料与粒状碳质还原剂混合,得到混合物,并将混合物连续送入中频感应炉的竖窑中,用纯氮气吹扫竖窑,保持炉内压力在0.01 和0.03mPa,在100-600℃的温度下干燥混合物,在900-1350℃的温度下进行碳化和氮化,将所得产物冷却至小于100℃,并将产物 。

    Method and apparatus for increasing the resolution in additively manufactured three-dimensional articles
    10.
    发明授权
    Method and apparatus for increasing the resolution in additively manufactured three-dimensional articles 有权
    用于增加附加制造的三维制品中的分辨率的方法和装置

    公开(公告)号:US09079248B2

    公开(公告)日:2015-07-14

    申请号:US14349052

    申请日:2012-12-04

    申请人: Arcam AB

    发明人: Ulf Ackelid

    摘要: A method for increasing the resolution when forming a three-dimensional article through successive fusion of parts of a powder bed, said method comprising providing a vacuum chamber, providing an electron gun, providing a first powder layer on a work table inside said vacuum chamber, directing an electron beam from said electron gun over said work table causing the powder layer to fuse in selected locations to form a first cross section of said three-dimensional article, providing a second powder layer on said work table, directing the electron beam over said work table causing said second powder layer to fuse in selected locations to form a second cross section of said three-dimensional article, reducing the pressure in the vacuum chamber from a first pressure level to a second pressure level between the providing of said first powder layer and said second powder layer.

    摘要翻译: 一种用于通过粉末床部分的连续融合来形成三维制品时的分辨率的方法,所述方法包括提供真空室,提供电子枪,在所述真空室内的工作台上提供第一粉末层, 将来自所述电子枪的电子束引导到所述工作台上,使粉末层在所选择的位置熔化以形成所述三维制品的第一横截面,在所述工作台上提供第二粉末层, 使所述第二粉末层在所选择的位置熔合以形成所述三维制品的第二横截面,从而在提供所述第一粉末层之间将真空室中的压力从第一压力水平降低到第二压力水平 和所述第二粉末层。