公开(公告)号：US20230001631A1

公开(公告)日：2023-01-05

申请号：US17900930

申请日：2022-09-01

Applicant: Stratasys Ltd.

Inventor： Diana RAVICH ,  Ophira MELAMED ,  Avraham TEKEN ,  Gavish MIDA ,  Avraham LEVY ,  Cesar M. MANNA

IPC: B29C64/112 ,  B33Y10/00 ,  B33Y70/00 ,  B29C64/295 ,  B29C64/106 ,  B29C64/291 ,  B29C35/08 ,  C09D11/101 ,  C09D11/107 ,  C09D11/30 ,  B33Y80/00

Abstract: A method of layerwise fabrication of a three-dimensional object is disclosed. The method comprises, for each of at least a few of the layers: dispensing at least a first modeling formulation and a second modeling formulation to form a core region using both the first and the second modeling formulations, and at least one envelope region at least partially surrounding the core region using one of the first and the second modeling formulations but not the other one of the first and the second modeling formulations. The method can also comprise exposing the layer to curing energy. The first modeling formulation is characterized, when hardened, by heat deflection temperature (HDT) of at least 90° C., and the second modeling formulation is characterized, when hardened, by Izod impact resistance (IR) value of at least 45 J/m.

公开(公告)号：US20200001535A1

公开(公告)日：2020-01-02

申请号：US16564006

申请日：2019-09-09

Applicant: Stratasys Ltd.

Inventor： Avraham TEKEN ,  Moshe AKNIN ,  Gregory BRUSILOVSKI

IPC: B29C64/336 ,  B29C64/112 ,  B29C64/209 ,  B29C64/106 ,  B29C64/386 ,  B41J2/14

Abstract: A printing head for a printing system is disclosed. The printing head comprises a plurality of compartments, each having an outlet port for depositing liquid and an inlet port separately connectable to a separate liquid container. At least two compartments are in controllable fluid communication with each other, and the printing head comprises an arrangement of sensors configured for generating signals indicative of (i) a filling state of each compartment, and (ii) a fluid communication state between the at least two compartments.

公开(公告)号：US20210260828A1

公开(公告)日：2021-08-26

申请号：US17314072

申请日：2021-05-07

Applicant: Stratasys Ltd.

Inventor： Avraham TEKEN ,  Boris BELOCON

IPC: B29C64/343 ,  G06Q50/04 ,  G06Q10/06 ,  B29C64/112 ,  B29C64/393

Abstract: A method for carrying out additive manufacture while regulating material consumption, comprises making a digital representation of at least part of an object for printing, the representation comprising a plurality of voxels, and then identifying voxels which are flexible in respect of being able to consist of any one of at least two available materials. A balanced material consumption policy is then used to choose between the available materials so as to ensure that as far as possible, different materials are evenly used and wastage is minimized. Finally the object is printed with the selected materials.

公开(公告)号：US20170320268A1

公开(公告)日：2017-11-09

申请号：US15632593

申请日：2017-06-26

Applicant: STRATASYS LTD.

Inventor： Avraham TEKEN ,  Boris BELOCON

IPC: B29C64/209 ,  B33Y10/00 ,  B33Y30/00 ,  B29C64/357

CPC classification number: B29C64/209 ,  B29C64/106 ,  B29C64/35 ,  B29C64/357 ,  B33Y10/00 ,  B33Y30/00

Abstract: A printing system for forming three-dimensional objects, layer by layer is provided. The system includes inkjet printing heads, each printing head adapted to dispense one of a modeling material, a support material or a reusable waste material that comprises one or more materials that were previously discharged from at least one of the inkjet printing heads; a modeling material container; a support material container; a reusable waste material container and a leveling unit that removes surplus material from previously deposited layers, the surplus material being provided to the reusable waste container via a tube.

公开(公告)号：US20190329488A1

公开(公告)日：2019-10-31

申请号：US16335299

申请日：2017-09-20

Applicant: Stratasys Ltd.

Inventor： Diana RAVICH ,  Ophira MELAMED ,  Avraham TEKEN ,  Gavish MIDA ,  Avraham LEVY ,  Cesar M. MANNA

IPC: B29C64/112 ,  B29C64/295 ,  B29C64/291 ,  B29C35/08 ,  B33Y10/00 ,  B33Y70/00 ,  C09D11/101 ,  C09D11/107 ,  C09D11/30

Abstract: A method of layerwise fabrication of a three-dimensional object is disclosed. The method comprises, for each of at least a few of the layers: dispensing at least a first modeling formulation and a second modeling formulation to form a core region using both the first and the second modeling formulations, and at least one envelope region at least partially surrounding the core region using one of the first and the second modeling formulations but not the other one of the first and the second modeling formulations. The method can also comprise exposing the layer to curing energy. The first modeling formulation is characterized, when hardened, by heat deflection temperature (HDT) of at least 90° C., and the second modeling formulation is characterized, when hardened, by Izod impact resistance (IR) value of at least 45 J/m.

公开(公告)号：US20180319083A1

公开(公告)日：2018-11-08

申请号：US15772066

申请日：2016-10-27

Applicant: Stratasys Ltd.

Inventor： Avraham TEKEN ,  Boris BELOCON

IPC: B29C64/343 ,  B29C64/393 ,  B29C64/112 ,  G06Q10/06 ,  G06Q50/04

CPC classification number: B29C64/343 ,  B29C64/112 ,  B29C64/393 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02 ,  G06Q10/06 ,  G06Q10/06313 ,  G06Q50/04 ,  Y02P90/30

Abstract: A method for carrying out additive manufacture while regulating material consumption, comprises making a digital representation of at least part of an object for printing, the representation comprising a plurality of voxels, and then identifying voxels which are flexible in respect of being able to consist of any one of at least two available materials. A balanced material consumption policy is then used to choose between the available materials so as to ensure that as far as possible, different materials are evenly used and wastage is minimized. Finally the object is printed with the selected materials.

公开(公告)号：US20170348914A1

公开(公告)日：2017-12-07

申请号：US15663837

申请日：2017-07-31

Applicant: Stratasys Ltd.

Inventor： Avraham TEKEN ,  Moshe AKNIN ,  Gregory BRUSILOVSKI

IPC: B29C64/336 ,  B29C64/386 ,  B41J2/14 ,  B29C64/106 ,  B29K105/00

CPC classification number: B29C64/336 ,  B29C64/106 ,  B29C64/112 ,  B29C64/209 ,  B29C64/386 ,  B29K2105/0058 ,  B41J2/14145 ,  B41J2/14153 ,  B41J2/14201 ,  B41J2002/14419

Abstract: A printing head for a printing system is disclosed. The printing head comprises a plurality of compartments, each having an outlet port for depositing liquid and an inlet port separately connectable to a separate liquid container. At least two compartments are in controllable fluid communication with each other, and the printing head comprises an arrangement of sensors configured for generating signals indicative of (i) a filling state of each compartment, and (ii) a fluid communication state between the at least two compartments.