公开(公告)号：US12042985B2

公开(公告)日：2024-07-23

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 ,  B29C64/314 ,  B33Y10/00 ,  B33Y70/00 ,  B82Y30/00 ,  B29K33/00 ,  B29K509/00 ,  B33Y80/00

CPC classification number: B29C64/153 ,  B29C64/314 ,  B33Y10/00 ,  B33Y70/00 ,  B29K2033/08 ,  B29K2509/00 ,  B33Y80/00 ,  B82Y30/00

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.

公开(公告)号：US10994475B2

公开(公告)日：2021-05-04

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: B29C41/22 ,  B29C41/46 ,  B29C71/02 ,  B29C71/04 ,  B29C64/118 ,  B33Y10/00 ,  B33Y70/00 ,  B33Y80/00 ,  B29C64/112 ,  B29C64/106 ,  B29K33/00 ,  B29K105/00

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.