METHODS AND SYSTEMS FOR THREE-DIMENSIONAL PRINTING UTILIZING MULTIPLE BINDER FLUIDS
    1.
    发明申请
    METHODS AND SYSTEMS FOR THREE-DIMENSIONAL PRINTING UTILIZING MULTIPLE BINDER FLUIDS 审中-公开
    利用多种粘合剂流体进行三维印刷的方法和系统

    公开(公告)号:WO2015100086A1

    公开(公告)日:2015-07-02

    申请号:PCT/US2014/070743

    申请日:2014-12-17

    Abstract: Methods and systems (2) are disclosed for making articles (114) by three-dimensional printing. The methods include selectively printing by jet deposition on successive layers (4) of a build material powder (10) at least one of a first binder fluid and a second binder fluid. At least one of the first and second binder fluids includes a particulate matter (16) having mean particle size diameter which is less than that of the build material powder (10). The first binder fluid is characteristically different from the second binder fluid. The particulate matter (16) selectively deposited with a binder fluid can be used to locally tailor the physical properties of the article (114), e.g. by alloying with the build material powder, increasing densification, acting as a local infiltrant or infiltrant stop during heat treatment, locally modulating the local stress fields (e.g. by a mismatch of thermal coefficients of expansion), etc. Among the possible locally tailored properties is the surface finish of an interior or exterior surface of the article (114).

    Abstract translation: 公开了用于通过三维印刷制造物品(114)的方法和系统(2)。 该方法包括通过喷射沉积在构建材料粉末(10)的连续层(4)上选择性地印刷第一粘结剂流体和第二粘结剂流体中的至少一种。 第一和第二粘合剂流体中的至少一种包括平均粒径小于建造材料粉末(10)的颗粒物质(16)。 第一粘合剂流体的特征与第二粘合剂流体不同。 选择性地用粘合剂流体沉积的颗粒物质(16)可用于局部调整制品(114)的物理性能,例如, 通过与建造材料粉末合金化,增加致密化作用,在热处理期间用作局部浸渗剂或浸渗剂停止剂,局部调节局部应力场(例如通过热膨胀系数的不匹配)等。可能的局部定制特性是 制品(114)的内表面或外表面的表面光洁度。

    METHODS AND SYSTEMS FOR THREE-DIMENSIONAL PRINTING UTILIZING A JETTED-PARTICLE BINDER FLUID
    3.
    发明申请
    METHODS AND SYSTEMS FOR THREE-DIMENSIONAL PRINTING UTILIZING A JETTED-PARTICLE BINDER FLUID 审中-公开
    使用喷流颗粒粘合剂流体进行三维印刷的方法和系统

    公开(公告)号:WO2015100085A2

    公开(公告)日:2015-07-02

    申请号:PCT/US2014/070738

    申请日:2014-12-17

    Abstract: Methods and systems (20) are disclosed for making articles by three-dimensional printing. The methods include three-dimensionally printing articles by selectively jet-depositing a particle-bearing binder fluid (14) upon successive layers (4) of a build material powder (10) such that the particles (16) deposited with the binder fluid (14) increase the apparent density of the as- printed article. The particulate matter (16) of the binder fluid (12) is smaller than the mean particle size of the build material powder (10). Preferably, this jet-deposited particulate matter (16) has a mean particle size that is larger than about 1 to and smaller than or equal to 50 microns. The jet-deposited matter (16) acts to fill in the interparticle interstices of the build material powder (10) thereby simultaneously increasing the density of the printed article and improving its surface roughness and contour resolution, which in turn, improves the surface finish of the final article. The systems (20) include binder fluid handling systems (26) which are adapted to jet a binder fluid (14) containing such particulate matter (16).

    Abstract translation: 公开了用于通过三维印刷来制造物品的方法和系统(20)。 所述方法包括通过在构建材料粉末(10)的连续层(4)上选择性地喷射沉积含颗粒粘合剂流体(14)以使得沉积有粘合剂流体(14)的颗粒(16) )增加了印刷品的表观密度。 粘合剂流体(12)的颗粒物质(16)小于建造材料粉末(10)的平均颗粒尺寸。 优选地,这种喷射沉积的颗粒物质(16)具有大于约1μm且小于或等于50μm的平均粒度。 喷射沉积物质(16)用于填充建造材料粉末(10)的颗粒间隙,从而同时增加印刷物品的密度并改善其表面粗糙度和轮廓分辨率,这又改善了表面粗糙度 最后的文章。 系统(20)包括粘结剂流体处理系统(26),其适于喷射含有这种颗粒物质(16)的粘结剂流体(14)。

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