公开(公告)号：WO2020146452A1

公开(公告)日：2020-07-16

申请号：PCT/US2020/012668

申请日：2020-01-08

Applicant: UT-BATTELLE, LLC ,  THE EXONE COMPANY

Inventor： SAITO, Tomonori ,  ELLIOTT, Amy M. ,  BRUNERMER, Daniel T. ,  GILMER, Dustin Blake ,  LEHMANN, Michelle ,  YU, Huayun

IPC: B29C67/00

Abstract: A method for binder jetting additive manufacturing of an object, the method comprising: (i) separately feeding a powder from which said object is to be manufactured and a solution comprising an adhesive polymer dissolved in a solvent into an additive manufacturing device, wherein said adhesive polymer is an amine-containing polymer having a molecular weight of at least 200 g/mole and is present in said solution in a concentration of 1-30 wt% to result in said solution having a viscosity of 2-25 mPa.s and a surface tension of 25-45 mN/m at room temperature; and (ii) dispensing selectively positioned droplets of said adhesive polymer, from a printhead of said additive manufacturing device, into a bed of said powder to bind particles of said powder with said adhesive polymer to produce a preform having a shape of the object to be manufactured.

公开(公告)号：WO2018067336A1

公开(公告)日：2018-04-12

申请号：PCT/US2017/053214

申请日：2017-09-25

Applicant: THE EXONE COMPANY

Inventor： DUGAN, Anthony S.

IPC: B05D5/00 ,  B28B11/06 ,  B29C31/02 ,  B29C41/02 ,  B29C41/36 ,  B29C64/329

Abstract: Powder-layer three-dimensional printer recoaters are disclosed which comprise a controllably vibrated traveling powder dispenser having a hopper section adapted to contain a build powder, an opening through which the powder can be controllably discharged laterally into a chamber which is located beside the opening and which has a mesh covering at least a portion of its bottom. A gate is located with its bottom portion proximal to the opening and is adapted so that its bottom portion horizontally oscillates with respect to the hopper. The recoaters also comprise a vibrator that is operably connected to the traveling powder dispenser and is adapted to selectively cause the powder to flow from the hopper through the opening and be discharged through the mesh and the bottom portion of the gate to horizontally oscillate. In some embodiments, the recoaters also comprise a smoothing device which is adapted to smoothen the powder dispensed through the mesh.

Abstract translation: 公开了粉末层三维打印机重涂器，其包括可控地振动的移动式粉末分配器，该粉末分配器具有适于容纳建造粉末的料斗部分，开口，粉末可通过该开口横向地可控制地排出到 其位于开口旁边并且具有覆盖其底部的至少一部分的网。 门的底部靠近开口并且适于使其底部相对于漏斗水平摆动。 所述重涂器还包括振动器，所述振动器可操作地连接到行进的粉末分配器并且适于选择性地使粉末从料斗通过开口流动并通过筛网和闸门的底部部分排出以水平摆动。 在一些实施例中，重涂器还包括平滑装置，其适于平滑通过网孔分配的粉末。

公开(公告)号：WO2015143174A1

公开(公告)日：2015-09-24

申请号：PCT/US2015/021496

申请日：2015-03-19

Applicant: THE EXONE COMPANY

Inventor： BRUNERMER, Daniel, T. ,  STACK, Patrick ,  VOSS, Lawrence, J.

IPC: B29C67/00 ,  G06T17/00

CPC classification number: G05B19/042 ,  B29C64/165 ,  B29C64/386 ,  B33Y50/00 ,  B33Y50/02 ,  G05B2219/49023 ,  G06T19/00

Abstract: Methods are provided for solid free-form fabrication of an article without using a slice stack file quickly and efficiently - in terms of computational resources - converting STL files representing an article or articles to be built by SFFF without the use of a conventional slicing program. An application program interface ("API") is used to generate a bitmap corresponding to each particular layer of the article that is to be printed directly from the article's STL file. This conversion may done essentially in real time immediately before the particular layer is to be printed. The bitmap is used in configuring the printing instructions for the SFFF printing mechanism to print that particular layer.

Abstract translation: 提供了用于固体自由形式制造物品的方法，而不用快速有效地使用切片堆栈文件 - 在计算资源方面 - 转换表示由SFFF构建的物品或物品的STL文件，而不使用传统的切片程序。 应用程序接口（“API”）用于生成与要从文章的STL文件直接打印的文章的每个特定层相对应的位图。 这种转换可以在要打印特定层之前基本上实时地完成。 位图用于配置SFFF打印机构的打印指令以打印该特定图层。

公开(公告)号：WO2015023729A1

公开(公告)日：2015-02-19

申请号：PCT/US2014/050837

申请日：2014-08-13

Applicant: THE EXONE COMPANY

Inventor： ORANGE, Michael, J. ,  BRUNERMER, Daniel, T.

IPC: B22C9/02

CPC classification number: B22C9/02 ,  B22C1/20 ,  B29C64/165 ,  B33Y10/00 ,  Y02P10/292

Abstract: Methods are disclosed of making metal casting molds and components thereof by the three-dimensional printing process in which an untreated sand is used as the build material and a polymer is used as a component of the binder that is printed onto the build material.

Abstract translation: 公开了通过三维印刷工艺制造金属铸造模具及其组件的方法，其中使用未处理的砂作为构建材料，并且使用聚合物作为印刷在构建材料上的粘合剂的组分。

公开(公告)号：WO2008103985A2

公开(公告)日：2008-08-28

申请号：PCT/US2008/054884

申请日：2008-02-25

Applicant: THE EXONE COMPANY, LLC ,  BOLT, Joseph

Inventor： BOLT, Joseph

IPC: B41M3/06

CPC classification number: B29C64/153 ,  B33Y30/00 ,  B33Y40/00

Abstract: A removable build box for a three dimensional printer comprises a build box tray defining a build chamber for part assembly and a material feed chamber for supplying powder material to the build chamber. The build and feed chambers have lower piston stops. A build chamber piston engages with the build chamber and with the build chamber piston stops at a lowermost position. A feed chamber piston engages with the feed chamber and with the feed chamber piston stops at a lowermost position. A quick connection coupling is between the build chamber piston and a build chamber z-axis actuator configured to move the build chamber piston when connected thereto. A quick connection coupling is between the feed chamber piston and a feed chamber z-axis actuator configured to move the feed chamber piston when connected thereto. The build box tray may be easily removed from the three dimensional printer.

Abstract translation: 用于三维打印机的可拆卸构造盒包括限定用于部件组装的构建室的构建箱托盘和用于将粉末材料供应到构建室的材料馈送室。 建造和进料室具有较低的活塞止挡。 建筑室活塞与建造室接合，建筑室活塞停在最低位置。 进料室活塞与进料室接合，并且进料室活塞停止在最低位置。 构建室活塞和构造室z轴致动器之间的快速连接联接器被配置成当连接到构建室活塞时移动构建室活塞。 进料室活塞和进料室z轴致动器之间的快速连接耦合被配置为当连接到进料室活塞时移动进料室活塞。 构建盒托盘可以容易地从三维打印机中移除。

公开(公告)号：WO2017040521A1

公开(公告)日：2017-03-09

申请号：PCT/US2016/049484

申请日：2016-08-30

Applicant: THE EXONE COMPANY

Inventor： KLEIN, Andrew, P. ,  VOSS, Lawrence, J. ,  DUGAN, Anthony, S. ,  ORNER, Michael, R. ,  LIZZI, Thomas

IPC: B23K26/34 ,  B33Y30/00 ,  C22C38/02

CPC classification number: B33Y10/00 ,  B29C64/153 ,  B29C64/165 ,  B29C64/20 ,  B33Y30/00

Abstract: Recoaters (30) are described which are adapted for use in powder-layer three-dimensional printers (110). The recoaters (30) comprise a mesh discharge device (44) that is adapted to be selectively activated by the application of an agitation, e.g. a vibration. Such mesh discharge devices (44) include a planar mesh (46), i.e. a screen or sieve, which is adapted to support a quantity of powder when the quantity of powder and the mesh (46) are static and to dispense at least a portion of the quantity of powder when at least one of the quantity of powder and the mesh (46) is agitated. Preferably, the mesh (46) is disposed substantially horizontally, but may be disposed at an angle to the horizontal. Also described are powder layer three-dimensional printers (110) comprising such recoaters.

Abstract translation: 描述了适用于粉末层三维打印机（110）的回收器（30）。 重涂器（30）包括网状物排出装置（44），其适于通过施加搅动而被选择性地活化。 振动。 这种网状排放装置（44）包括平面网（46），即筛网或筛子，当平均筛网（46）是粉末和网（46）的数量是静态的并适于分配至少一部分 当粉末和网（46）中的至少一种被搅动时，粉末的量。 优选地，网状物（46）基本上水平设置，但可以与水平方向成一定角度设置。 还描述了包括这种重涂器的粉末层三维打印机（110）。

公开(公告)号：WO2016176432A1

公开(公告)日：2016-11-03

申请号：PCT/US2016/029757

申请日：2016-04-28

Applicant: THE EXONE COMPANY

Inventor： KLEIN, Andrew, P. ,  BRUNERMER, Daniel, T. ,  McCOY, Michael, J. ,  DUGAN, Anthony, S. ,  VOSS, Lawrence, J. ,  LIZZI, Thomas

IPC: B22F3/105 ,  B29C31/02 ,  B65D83/06 ,  G03G21/10

CPC classification number: G03G15/224 ,  B22F3/1055 ,  B22F2003/1056 ,  B29C64/205 ,  B33Y30/00 ,  Y02P10/295

Abstract: A device for applying powder layers across a substrate or atop an existing powder bed is disclosed. The device has particular utility in embodiments which are adapted for use in depositing powder layers for three-dimensional printing and as part of a three-dimensional printing apparatus. The device utilizes a conveyor belt to transfer powder from a powder reservoir and deposit it upon powder bed or other substrate. In some embodiments, the device utilizes a conveyor belt in conjunction with a powder deflector to transfer powder from a powder reservoir and deposit it upon powder bed or other substrate. In some embodiments the conveyor belt has a downwardly inclined section. In some embodiments, a downwardly inclined chute is used in conjunction with the conveyor belt.

Abstract translation: 公开了一种用于在基底上或在现有粉末床顶上施加粉末层的装置。 该装置在适于用于沉积用于三维打印的粉末层和作为三维打印装置的一部分的实施例中具有特别的用途。 该设备利用输送带从粉末储存器转移粉末并将其沉积在粉末床或其它基底上。 在一些实施例中，该装置利用与粉末偏转器结合的传送带将粉末从粉末储存器转移并将其沉积在粉末床或其它基底上。 在一些实施例中，传送带具有向下倾斜的部分。 在一些实施例中，向下倾斜的滑槽与传送带一起使用。

公开(公告)号：WO2008103984A3

公开(公告)日：2008-08-28

申请号：PCT/US2008/054876

申请日：2008-02-25

Applicant: THE EXONE COMPANY ,  RHOADES, John, Y., P. ,  HANCOX, Anita

Inventor： HANCOX, Anita

IPC: B22F7/02 ,  B29C35/02 ,  B29C67/02 ,  B05C11/02 ,  B05C19/00

Abstract: An apparatus provides a method for transferring infiltrant to a 3D printed article comprising the steps of (i) calculating the amount of infiltrant based in part upon the particulars of the 3D printed articles; (ii) dispensing the calculated amount of infiltrant to a scale from an infiltrant dispenser through a controller; (iii) weighing the dispensed infiltrant during the dispensing; providing the controller with a signal of the weighed dispensed infiltrant; and (iv) automatically stopping the infiltrant dispenser through the controller as the weighed infiltrant reaches the calculated amount of infiltrant.

公开(公告)号：WO2019231748A1

公开(公告)日：2019-12-05

申请号：PCT/US2019/033242

申请日：2019-05-21

Applicant: THE EXONE COMPANY

Inventor： STROUD, Adam, W. ,  LUCAS, Rick, D. ,  MCCOY, Michael, John ,  DUGAN, Anthony, S. ,  BOLT, Joseph, J.

IPC: B29C64/218 ,  B29C64/165

Abstract: Powder layer smoothing devices (34) adapted for use with powder-layer three- dimensional printers (10) are described. The smoothing devices (34) include a counter rotating roller (36, 50, 60) having a complex powder engaging face (38) that may include a series or plurality of flutes (54) or may include knurling (64) extending along at least a portion of the counter rotating roller (36, 50, 60) along its rotational axis (56, 66). The smoothing device (34) may also include a vertically adjustable finishing roller (35) to follow the counter rotating roller (36, 50, 60) across the build box (12) of the powder-layer three-dimensional printer (10).

公开(公告)号：WO2016061302A1

公开(公告)日：2016-04-21

申请号：PCT/US2015/055644

申请日：2015-10-15

Applicant: THE EXONE COMPANY

Inventor： CLARK, Richard, D. ,  TUK, Douglas, P. ,  PASTERIK, Thomas, G. ,  CARY, Brandon ,  LIZZI, Thomas

IPC: B29C67/00 ,  B22F5/10 ,  B28B1/00

CPC classification number: B22F3/1055 ,  B22F3/008 ,  B22F5/10 ,  B22F5/106 ,  B28B1/001 ,  B29C67/0051 ,  B29C67/0077 ,  B33Y10/00 ,  B33Y40/00 ,  B33Y50/02 ,  B33Y70/00 ,  B33Y80/00

Abstract: Methods are presented for controlling warpage during heat treatment of a 3DPBJ article having a cavity extending inwardly from an outside surface wherein a 3DPBJ article is 3DPBJ printed from a build powder as is a 3DPBJ object which is adapted to be contactingly insertable into the cavity of the 3DP BJ article. At least a portion of the 3DPBJ article cavity surface and/or at least a portion of the surface of the 3DPBJ object is treated to prevent the 3DPBJ object from becoming bonded to the 3DPBJ article during the heat treatment. The 3DPBJ object is inserted into the 3DPBJ article cavity and the 3DPBJ article and the 3DPBJ object are heat treated to transform the 3DPBJ article into the intended article itself and the 3DPBJ object into a heat treated 3DPBJ object. The heat treated 3DPBJ object is removed from the article.

Abstract translation: 提出了用于控制3DPBJ制品的热处理期间的翘曲的方法，所述3DPBJ制品具有从外表面向内延伸的空腔，其中3DPBJ制品是从建筑粉末打印的3DPBJ，如适用于可接触地插入到空腔中的3DPBJ物体 3DP BJ文章。 处理3DPBJ制品空腔表面和/或3DPBJ物体的表面的至少一部分的至少一部分被处理以防止3DPBJ物体在热处理期间与3DPBJ物品结合。 3DPBJ对象被插入到3DPBJ文章空腔中，3DPBJ文章和3DPBJ对象被热处理，以将3DPBJ文章本身和3DPBJ对象转换成热处理的3DPBJ对象。 热处理的3DPBJ物体从物品中移除。