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公开(公告)号：US20130101746A1
公开(公告)日：2013-04-25
申请号：US13362396
申请日：2012-01-31
IPC分类号： B05D3/06
CPC分类号： B22F3/1055 , B22F2003/1056 , B22F2003/1058 , B22F2003/1059 , B29C64/153 , B33Y10/00 , B33Y30/00 , Y02P10/295
摘要： An additive manufacturing machine includes a base plate for supporting fabrication of a desired part geometry. The base plate includes a support portion defined based on the desired part geometry and an open region that includes a plurality of openings surrounding the support portion. A material applicator deposits material onto the base plate and an energy directing device directs energy to form the deposited material into a desired part geometry. The additive manufacturing machine manages large amounts of material required for fabricating the part by defining a boundary surrounding a periphery of a desired part geometry and forming a retaining wall along the defined boundary and the desired part geometry to retain excess material between the formed wall and the part. Excess material outside of the retaining wall falls through the open area below the base plate and is reclaimed for reuse.
摘要翻译： 添加剂制造机器包括用于支撑所需部件几何形状的制造的基板。 基板包括基于期望的部件几何形状限定的支撑部分和包括围绕支撑部分的多个开口的开放区域。 材料施加器将材料沉积到基板上，并且能量引导装置引导能量以将沉积的材料形成为期望的部件几何形状。 添加剂制造机通过限定围绕所需部件几何形状的周边的边界来管理制造部件所需的大量材料，并沿着限定的边界和期望的部件几何形状形成保持壁，以将多余的材料保持在形成的壁和 部分。 挡土墙外的多余材料通过底板下方的开放区域落下，并被回收再利用。
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公开(公告)号：US20130101729A1
公开(公告)日：2013-04-25
申请号：US13362470
申请日：2012-01-31
CPC分类号： B23K26/34 , B22F3/1055 , B22F2003/1057 , B23K35/0244 , B29C64/00 , B29C71/02 , B29C2071/022 , B33Y30/00 , B33Y50/02 , Y02P10/295
摘要： An additive manufacturing process includes the steps of measuring a parameter of a part supported within a workspace after a heat treat or other stress relieving process. The measured parameter being a part characteristic that is desired to be within a desired range prior to proceeding with an additional fabrication process. The process further includes the step of applying at least one additional layer on the part based on the measured parameter to adjust the measured parameter to within the desired range.
摘要翻译： 添加剂制造方法包括以下步骤：在热处理或其它应力消除过程之后测量在工作空间内支撑的部件的参数。 所测量的参数是在进行额外制造过程之前期望在期望范围内的部件特性。 该方法还包括基于测量的参数在部件上施加至少一个附加层以将所测量的参数调整到所需范围内的步骤。
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公开(公告)号：US20130101728A1
公开(公告)日：2013-04-25
申请号：US13362425
申请日：2012-01-31
CPC分类号： B22F3/1055 , B22F2003/1056 , B22F2003/1057 , B29C64/153 , B29C64/20 , B29C71/02 , B29C2035/0211 , B29C2035/0811 , B29C2035/0838 , B29C2035/1666 , B29C2071/022 , B33Y30/00 , B33Y40/00 , Y02P10/295
摘要： An additive manufacturing process performed by an additive manufacturing machine includes strain gauges that detect stress within a part during fabrication within a defined workspace. When the detected stress is exceeds a desired level the fabrication steps are paused and a stress relieving process is performed within the chamber without moving the part. The additive manufacturing machine includes heaters and coolers for changing the temperature within the chamber to perform the desired stress relieving process in the same space as fabrication is performed. Once it is confirmed that stresses within the part are within acceptable limits the part fabrication process is resumed.
摘要翻译： 由添加剂制造机器执行的添加剂制造过程包括在制造期间在限定的工作空间内检测部件内的应力的应变计。 当检测到的应力超过所需水平时，暂停制造步骤，并且在室内进行应力消除处理而不移动该部件。 添加剂制造机包括用于改变室内的温度的加热器和冷却器，以在与制造相同的空间中执行所需的应力消除过程。 一旦确认部件内的应力在可接受的限度内，则部件制造过程被恢复。
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公开(公告)号：US20130112672A1
公开(公告)日：2013-05-09
申请号：US13362322
申请日：2012-01-31
IPC分类号： B23K26/00
CPC分类号： B23K26/0876 , B22F3/1055 , B22F7/00 , B22F2003/1056 , B23K26/0673 , B23K26/0676 , B23K26/082 , B23K26/10 , B29C64/153 , B33Y10/00 , B33Y30/00 , Y02P10/295
摘要： An additive manufacturing assembly includes a work space including a plurality of separate regions and an energy transmitting device for focusing an energy beam to a specific location within one of the plurality of regions within the work space. The energy transmitting device includes features for expanding the workspace for fabricating parts of increased size and volume.
摘要翻译： 添加剂制造组件包括包括多个分离区域的工作空间和用于将能量束聚焦到工作空间内的多个区域之一内的特定位置的能量传输装置。 能量传输装置包括用于扩展工作空间以用于制造增加尺寸和体积的部件的特征。
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公开(公告)号：US11519063B2
公开(公告)日：2022-12-06
申请号：US17024625
申请日：2020-09-17
申请人： Youping Gao
发明人： Youping Gao
摘要： Methods of fabricating objects using additive manufacturing are provided. The methods create in situ dispersoids within the object. The methods are used with refractory alloy powders which are pretreated to increase the oxygen content to between 500 ppm and 3000 ppm or to increase the nitrogen content to between 250 ppm and 1500 ppm. The pretreated powders are then formed into layers in an environmentally controlled chamber of an additive manufacturing machine. The environmentally controlled chamber is adjusted to have between 500 ppm and 200 ppm oxygen. The layer of pretreated powder is then exposed to a transient moving energy source for melting and solidifying the layer; and creating in situ dispersoids in the layer.
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