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17 条记录 (耗时 0.017 秒)

    SOLID FREEFORM FABRICATION OF SHELLED OBJECTS
    1.
    发明申请
    SOLID FREEFORM FABRICATION OF SHELLED OBJECTS 有权

    公开(公告)号：US20220097291A1

    公开(公告)日：2022-03-31

    申请号：US17548649

    申请日：2021-12-13

    申请人： Stratasys Ltd.

    发明人： Daniel DIKOVSKY ,  Avraham LEVY ,  Eduardo NAPADENSKY

    IPC分类号： B29C64/112 ,  B29C64/393 ,  B29C64/135

    摘要： A method of layerwise solid freeform fabrication is disclosed. The method comprises, for each of at least a few of the layers, dispensing and hardening at least a first modeling material and a second modeling material to form a core region and one or more envelope regions at least partially surrounding the core region. In some embodiments, the ratio between the elastic moduli of adjacent regions, when hardened, is from about 1 to about 20.

    METHOD AND SYSTEM FOR SOLID FREEFORM FABRICATION
    2.
    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

    申请人： STRATASYS LTD.

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

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

    摘要： 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.

    SYSTEM AND METHOD FOR ADDITIVE MANUFACTURING OF AN OBJECT
    10.
    发明申请
    SYSTEM AND METHOD FOR ADDITIVE MANUFACTURING OF AN OBJECT 审中-公开

    公开(公告)号：US20190054683A1

    公开(公告)日：2019-02-21

    申请号：US16166228

    申请日：2018-10-22

    申请人： Stratasys Ltd.

    发明人： Avraham LEVY ,  Keren REGEV ,  Claudio ROTTMAN ,  Shai HIRSCH

    IPC分类号： B29C64/112 ,  B29C64/386 ,  B29C64/124 ,  B29C64/40 ,  B33Y30/00 ,  B33Y10/00 ,  B33Y50/02

    摘要： A method of additive manufacturing of a three-dimensional object. is disclosed. The method comprises sequentially forming a plurality of layers in a configured pattern corresponding to the shape of the object, thereby forming the object. The formation of each layer comprises dispensing at least one uncured building material, and at least partially curing the uncured building material, wherein for at least one layer, the curing is initiated at least t seconds after commencement of curing of a layer immediately preceding that layer. The t parameter is longer than the number of seconds required for the formation of the layer.