Thermal stereolithography
    1.
    发明授权

    公开(公告)号:US5672312A

    公开(公告)日:1997-09-30

    申请号:US464977

    申请日:1995-06-05

    摘要: Apparatus for and related methods of forming three-dimensional objects out of a building material, which is normally solid, but which is flowable when heated. In one embodiment, a support material is used to fill in portions of layers which are not to be solidified as part of the object, thus providing support to otherwise unsupported portions of other layers. Advantageously, the support material is also normally solid and flowable when heated, and has a lower melting point than the building material enabling the support material to later be removed without damaging the object. In an alternative embodiment this support material can be used to build a support such as a web support, or the like, for supporting an object surface from a second surface. In another alternative embodiment, such an apparatus is combined with a conventional stereolithographic apparatus to provide means for forming an object out of conventional stereolithographic materials, but utilizing a normally solid but thermally-flowable support material to provide support to the object, either on a layer-by layer basis, or by building supports such as web supports.

    Thermal stereolithography
    2.
    发明授权
    Thermal stereolithography 失效
    热立体光刻

    公开(公告)号:US5569349A

    公开(公告)日:1996-10-29

    申请号:US464194

    申请日:1995-06-05

    摘要: Apparatus for and related methods of forming three-dimensional objects out of a building material, which is normally solid, but which is flowable when heated. In one embodiment, a support material is used to fill in portions of layers which are not to be solidified as part of the object, thus providing support to otherwise unsupported portions of other layers. Advantageously, the support material is also normally solid and flowable when heated, and has a lower melting point than the building material enabling the support material to later be removed without damaging the object. In an alternative embodiment this support material can be used to build a support such as a web support, or the like, for supporting an object surface from a second surface. In another alternative embodiment, such an apparatus is combined with a conventional stereolithographic apparatus to provide means for forming an object out of conventional stereolithographic materials, but utilizing a normally solid but thermally-flowable support material to provide support to the object, either on a layer-by layer basis, or by building supports such as web supports.

    摘要翻译: 从建筑材料中形成三维物体的装置和相关方法,其通常是固体,但是当加热时它是可流动的。 在一个实施例中,支撑材料用于填充不被凝固的部分层,作为物体的一部分,从而为其它层的其它未支撑的部分提供支撑。 有利地,支撑材料在加热时也通常是固体和可流动的,并且具有比建筑材料低的熔点,使得能够在不损坏物体的情况下移除支撑材料。 在替代实施例中,该支撑材料可用于构建支撑件,例如幅材支撑件等,用于从第二表面支撑物体表面。 在另一替代实施例中,这种装置与传统的立体光刻设备组合以提供用于从常规立体光刻材料形成物体的装置,但是使用通常为固体但热可流动的支撑材料来提供对物体的支撑, 或通过构建诸如web支持的支持。

    Ultrasonic object consolidation system and method
    4.
    发明申请
    Ultrasonic object consolidation system and method 有权
    超声对象整合系统及方法

    公开(公告)号:US20020019683A1

    公开(公告)日:2002-02-14

    申请号:US09859691

    申请日:2001-05-17

    IPC分类号: G06F019/00

    摘要: Machine tools combine material addition via ultrasonic object consolidation and subtractive techniques for imparting high-dimensional accuracy to a finished object. A material supply and feeder, ultrasonic horn, and feedstock cutting device are integrated with a material removal subsystem preferably including a cutting tool and an excess material removal system. Any metal, plastic or composite material suitable for ultrasonic joining may be employed as a feedstock, and these material may assume the form of tapes, sheets, wires, filaments, dots or droplets, with the feeding and material cutting components being designed for the specific feedstock employed. The cutting tool for excess material removal, may be a knife, drill/mill, grinding tool, or other tool capable of accurately cutting the external contour of a cross section of the part being built, and for removing excess feedstock remaining following the application process. The material removal could consist of a vacuum or blower system, chip auger, or other suitable apparatus. A machine disclosed as part of the preferred embodiment is able to deposit material in one step, and optionally and selectively remove it in another. Through the expeditious combination of deposition and removal, the fabrication of objects of arbitrary shape may be realized.

    摘要翻译: 机床通过超声波对象固定和减法技术结合材料添加,为成品提供高维度精度。 材料供应和进料器,超声波喇叭和原料切割装置与优选包括切割工具和多余材料去除系统的材料去除子系统集成。 适用于超声波接合的任何金属,塑料或复合材料可用作原料,这些材料可呈带状,片状,电线,长丝,点或液滴的形式,其中进料和切割材料被设计用于特定的 原料采用。 用于多余材料去除的切削刀具可以是刀,钻/磨,研磨工具或能够精确地切割正被建造的部件的横截面的外部轮廓的其他工具,并且用于在施加过程之后除去剩余的剩余原料 。 材料去除可以由真空或鼓风机系统,切屑螺旋钻或其他合适的装置组成。 作为优选实施例的一部分公开的机器能够在一个步骤中沉积材料,并且可选地和选择性地将其除去在另一个步骤中。 通过沉积和去除的快速组合,可以实现任意形状的物体的制造。

    3-D color model making apparatus and process
    6.
    发明授权
    3-D color model making apparatus and process 失效
    3-D色彩模型制作设备和工艺

    公开(公告)号:US06165406A

    公开(公告)日:2000-12-26

    申请号:US321278

    申请日:1999-05-27

    摘要: A freeform fabrication process and apparatus for making a colorful 3-D object. The process includes (1) operating a multiple-channel droplet deposition device for supplying and, on demand, ejecting droplets of multiple liquid compositions containing a solidifiable baseline body-building material and different colorants; (2) providing a support platform a distance from this deposition device to receive the droplets therefrom; and (3) during the droplet ejecting process, moving the deposition device and the platform relative to one another in an X-Y plane and in a Z direction orthogonal to the X-Y plane so that the droplets are deposited to form multiple layers to build a colorful 3-D object. These steps are executed under the control of a computer system by taking additional steps of (4) creating a geometry and color pattern of the object on a computer with the geometry including a plurality of color-coded segments defining the object; (5) generating programmed signals corresponding to each of the segments in a predetermined sequence; and (6) moving the deposition device and the platform relative to each other in response to these programmed signals. Preferably, the system is also operated to generate a support structure for any un-supported feature of the object.

    摘要翻译: 一种用于制作色彩鲜艳的3-D物体的自由形状制作工艺和装置。 该方法包括(1)操作多通道液滴沉积装置,用于供应和,并且根据需要喷射含有可凝固的基体建筑材料和不同着色剂的多种液体组合物的液滴; (2)提供与该沉积装置距离其接收液滴的支撑平台; 和(3)在液滴喷射过程中,在XY平面和与XY平面垂直的Z方向上相对于彼此移动沉积装置和平台,使得液滴沉积形成多层以形成多彩的3 -D对象。 这些步骤在计算机系统的控制下通过采取(4)在计算机上创建对象的几何和颜色模式的附加步骤来执行,其中几何包括定义该对象的多个颜色编码的段; (5)以预定顺序产生与每个段对应的编程信号; 以及(6)响应于这些编程的信号使沉积装置和平台相对于彼此移动。 优选地,该系统还被操作以产生用于对象的任何未支撑的特征的支撑结构。

    Method and means for constructing three-dimensional articles by particle
deposition
    8.
    发明授权
    Method and means for constructing three-dimensional articles by particle deposition 失效
    通过颗粒沉积构建三维制品的方法和方法

    公开(公告)号:US5136515A

    公开(公告)日:1992-08-04

    申请号:US433695

    申请日:1989-11-07

    申请人: Richard Helinski

    发明人: Richard Helinski

    IPC分类号: B29C67/00 G05B19/4099

    摘要: A three dimensional article is produced layer by layer by jetting droplets of at least two different hardenable materials, as appropriate, into the various layers, the first material forming the article itself, and the second material forming a support for the article as necessary. The second material is thereafter separated from the first material, e.g., by heat, to form the desired article.

    摘要翻译: 通过将至少两种不同的可硬化材料的液滴适当地喷射到各种层中,形成制品本身的第一材料和根据需要形成制品的支撑物的第二材料逐层地制备三维制品。 此后,第二种材料与第一种材料例如通过加热分离,形成所需的物品。

    Ultrasonic object consolidation
    10.
    发明授权
    Ultrasonic object consolidation 有权
    超声波对象整合

    公开(公告)号:US06519500B1

    公开(公告)日:2003-02-11

    申请号:US09532432

    申请日:2000-03-23

    申请人: Dawn White

    发明人: Dawn White

    IPC分类号: G06F1900

    摘要: A system and a method of fabricating a three-dimensional object on a substrate includes adding material layers incrementally and consolidating the layers by using ultrasonic vibrations and pressure. The layers are placed in position to shape the object by a material feeding unit, and they come in various forms, including flat sheets, segments of tape, strands of filament or single dots of material. The material may be plastic or metallic, and composition may vary discontinuously or gradually from one layer to the next, creating a region of functionally gradient material. The invention permits the construction and repair of dense objects, including fiber-reinforced composites and aerospace structures. Excess material may be removed one or more layers are bonded, including following end of the process after the final object is fabricated. The layers are fed sequentially and additively according to a layer-by-layer computer-model description of the object, which is generated by a computer-aided design/manufacturing (CAD/CAM) system. Ultrasonic welding equipment applicable to the invention preferably includes an ultrasonic generator, a transducer, a booster and a head unit or sonotrode.

    摘要翻译: 在衬底上制造三维物体的系统和方法包括通过使用超声波振动和压力递增地增加材料层并且固结层。 这些层被放置在适当位置以通过材料供给单元来成形物体,并且它们具有各种形式,包括平板,胶带段,细丝线或单点材料。 该材料可以是塑料或金属的,并且组合物可以不连续地或逐渐地从一个层到下一个变化,从而产生功能梯度材料的区域。 本发明允许对包括纤维增强复合材料和航空航天结构在内的致密物体进行构造和修理。 可以除去一些或多个层结合的过量材料,包括在制造最终物体之后的工艺结束。 根据由计算机辅助设计/制造(CAD / CAM)系统生成的对象的逐层计算机模型描述,顺序地和相加地地馈送层。 适用于本发明的超声波焊接设备优选地包括超声波发生器,换能器,助力器和头单元或超声波发生器。