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    METHOD AND SYSTEM FOR SOLID FREEFORM FABRICATION
    1.
    发明申请
    METHOD AND SYSTEM FOR SOLID FREEFORM FABRICATION 审中-公开

    公开(公告)号：US20200016822A1

    公开(公告)日：2020-01-16

    申请号：US16335305

    申请日：2017-09-20

    Applicant: STRATASYS LTD.

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

    IPC: B29C64/118 ,  B33Y80/00 ,  B33Y10/00 ,  B33Y70/00

    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.

    THREE-DIMENSIONAL OBJECT WITH A GLOSSY SURFACE, FORMULATIONS AND METHODS OF MANUFACTURING THE SAME
    4.
    发明申请
    THREE-DIMENSIONAL OBJECT WITH A GLOSSY SURFACE, FORMULATIONS AND METHODS OF MANUFACTURING THE SAME 有权

    公开(公告)号：US20220055312A1

    公开(公告)日：2022-02-24

    申请号：US17421041

    申请日：2020-01-07

    Applicant: STRATASYS LTD.

    Inventor： Dani PERI ,  Cesar M. MANNA

    IPC: B29C64/40 ,  B29C64/124 ,  B33Y40/20 ,  B33Y70/00 ,  B33Y10/00

    Abstract: Methods, systems and formulations of building a three-dimensional object with a glossy surface, the method may include: selectively depositing a first material in a plurality of layers to form a body region of the three-dimensional object, wherein said first material comprises a multifunctional acrylic monomer; selectively depositing a second material in a plurality of layers to form a support region, wherein said second material comprises a monofunctional hydrophilic acrylic monomer and does not comprise a multifunctional acrylic monomer; curing each of the deposited layers, wherein in at least one of the deposited layers the first material and the second material mix to form an intermediate region at their mutual interface; dissolving the support region in an aqueous solution; and drying the body region and the intermediate region, whereby the dried intermediate region provides a glossy surface on the body region of said three-dimensional object.

    ADDITIVE MANUFACTURING USING REINFORCED MATERIALS
    5.
    发明申请
    ADDITIVE MANUFACTURING USING REINFORCED MATERIALS 有权

    公开(公告)号：US20220111585A1

    公开(公告)日：2022-04-14

    申请号：US17418973

    申请日：2019-12-26

    Applicant: Stratasys Ltd.

    Inventor： Yaniv HIRSCHSOHN ,  Lior ZONDER ,  Ohad SHITRIT ,  Cesar M. MANNA

    IPC: B29C64/153 ,  B33Y70/00 ,  B33Y10/00 ,  B29C64/314

    Abstract: Formulations usable in additive manufacturing of a three-dimensional object, which comprise a reinforcing material such as silica particles in an amount of from 10 to 30%, or from 15 to 20%, by weight, of the total weight of the formulation, and a designed combination of curable materials as described in the specification, is provided. Additive manufacturing of three-dimensional objects made of such a formulation and featuring enhanced mechanical properties, and objects obtained thereby are also provided.

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