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    METHOD AND SYSTEM FOR SOLID FREEFORM FABRICATION
    2.
    发明申请
    METHOD AND SYSTEM FOR SOLID FREEFORM FABRICATION 审中-公开
    固体FREEFORM制造方法和系统

    公开(公告)号：WO2018055521A1

    公开(公告)日：2018-03-29

    申请号：PCT/IB2017/055692

    申请日：2017-09-20

    Applicant: STRATASYS LTD.

    Inventor： LEVY, Avraham ,  RAVICH, Diana ,  ZONDER, Lior ,  SHELEF, Gil ,  MANNA, Cesar M.

    IPC: B29C64/106 ,  B33Y80/00 ,  B29C64/112

    Abstract: Methods of layerwise fabrication of a three-dimensional object, and objected obtained thereby are provided. The methods are effected by dispensing at least a first modeling formulation and a second modeling formulation to form a core region using both said first and said second modeling formulations, an inner envelope region at least partially surrounding said core region using said first modeling formulation but not said second modeling formulation, and an outer envelope region at least partially surrounding said inner envelope region using said second modeling formulations but not said first modeling formulation; and exposing said layer to curing energy, thereby fabricating the object, The first and second modeling formulations are selected such they differ from one another, when hardened, by at least one of Heat Deflection Temperature (HDT), Izod Impact resistance, Tg and elastic modulus.

    Abstract translation: 提供了三维物体的分层制造方法以及由此获得的对象。 通过分配至少第一建模配方和第二建模配方以使用所述第一建模配方和所述第二建模配方来形成核心区域来实现所述方法，使用所述第一建模配方至少部分地围绕所述核心区域的内部包络区域而不是 所述第二建模制定以及使用所述第二建模配方而不是所述第一建模配方至少部分地围绕所述内部包络区域的外部包络区域; 并且使所述层暴露于固化能量，由此制造所述物体。选择所述第一和第二模型制剂，使得它们在硬化时彼此不同，通过热变形温度（HDT），悬臂梁式冲击强度，Tg和弹性中的至少一个 模量

    3-D PRINTED MOLD FOR INJECTION MOLDING
    4.
    发明申请
    3-D PRINTED MOLD FOR INJECTION MOLDING 审中-公开
    3-D打印模具用于注塑成型

    公开(公告)号：WO2017037713A1

    公开(公告)日：2017-03-09

    申请号：PCT/IL2016/050961

    申请日：2016-09-01

    Applicant: STRATASYS LTD.

    Inventor： MATZNER, Eynat ,  DIKOVSKY, Daniel ,  MELAMED, Ophira ,  ZONDER, Lior

    IPC: B29C33/38 ,  B29C33/40 ,  B29C45/26 ,  B33Y80/00 ,  B29C67/00

    CPC classification number: B29C33/3842 ,  B22F1/0074 ,  B22F3/008 ,  B22F5/007 ,  B22F7/06 ,  B29C33/38 ,  B29C33/3828 ,  B29C33/40 ,  B29C45/26 ,  B29C64/112 ,  B29C64/165 ,  B29K2105/16 ,  B29K2105/162 ,  B29K2105/167 ,  B29K2995/0013 ,  B29K2995/0015 ,  B29K2995/0089 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  C22C32/0068 ,  C22C32/0084 ,  C22C32/0094 ,  C22C2026/002

    Abstract: A multi-material mold and a method of constructing a multi-material mold for injection molding using additive manufacturing comprises defining a structure of the mold; and defining at least two sub-regions, associating the sub-regions with respective specific materials and printing the sub-regions with the specific material. The sub- regions may include an internal sub-region that allows dissipation of heat accumulating during use of the mold, where the specific material is heat conductive; an embedded heat sink sub-region for conducting heat away from the internal sub-region allowing dissipation, where the specific material is relatively non-conductive mold material embedded with lines or layers of relatively heat-conductive material; a sub-region resistant to abrasion, where the specific material is an abrasion-resistant polymer; a sub- region resistant to breaking under process conditions, where the specific material is a high toughness and high Tg polymer or a digital material and a sub-region of flexible material for sealing and releasing.

    Abstract translation: 使用添加剂制造的多材料模具和用于注塑成型的多材料模具的方法包括限定模具的结构; 并且限定至少两个子区域，将所述子区域与各自的特定材料相关联并且用所述特定材料打印所述子区域。 子区域可以包括内部子区域，其允许消耗在使用模具期间积聚的热量，其中特定材料是导热的; 嵌入式散热子区域，用于从内部子区域传导热量，从而允许耗散，其中特定材料是嵌入相对导热材料的线或层的相对不导电的模具材料; 耐磨损的亚区域，其中特定材料是耐磨聚合物; 在工艺条件下耐断裂的子区域，其中特定材料是高韧性和高Tg聚合物或用于密封和释放的柔性材料的数字材料和子区域。

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