公开(公告)号：JP2002086575A

公开(公告)日：2002-03-26

申请号：JP2001233815

申请日：2001-08-01

Applicant: 3 D SYSTEMS INC

Inventor： JACOBS PAUL F ,  HULL CHARLES W ,  SMALLEY DENNIS R ,  ALLISON JOSEPH W

IPC: B29C35/08 ,  B29C67/00 ,  B29C67/02 ,  B29K105/24 ,  G03F7/00 ,  G03F7/20

Abstract: PROBLEM TO BE SOLVED: To improve the precision of a three-dimensional object by reducing strain in forming the object by stereo-lithography. SOLUTION: When one layer of the three-dimensional object is formed by forming a medium layer on a previously solidified layer of the object and exposing the medium layer selectively to a solidifying stimulus, at least one part of at least one layer is exposed in a tile pattern in which each tile is separated by the interval of the unexposed medium between the tiles from any adjacent tile.

公开(公告)号：JP2002001827A

公开(公告)日：2002-01-08

申请号：JP2001136338

申请日：2001-05-07

Applicant: 3 D SYSTEMS INC

Inventor： HANNA STEPHEN D ,  MOUSSA KHALIL M

IPC: B29C67/00

Abstract: PROBLEM TO BE SOLVED: To provide an improved treatment for molding a three-dimensional body for a photo-curable material or a liquid material by using an improved curing treatment. SOLUTION: In order to form a body with mechanical characteristics in accordance with an individual requirement, the photo-curable material or the liquid material is cured by using a plurality of different curing methods for molding a single body to provide specified mechanical characteristics in each selected region of the body in the body.

公开(公告)号：JP2001232690A

公开(公告)日：2001-08-28

申请号：JP2001019911

申请日：2001-01-29

Applicant: 3 D SYSTEMS INC

Inventor： KULKARNI RAJEEV B ,  MANNERS CHRIS R

IPC: B29C67/00

Abstract: PROBLEM TO BE SOLVED: To provide an improved stereolithography process for formation of a three-dimensional object using an improved support part. SOLUTION: The support part with a weakly cured part at a selected position is formed by distinguishably curing a liquid material during the formation of the support part. Consequently, removal of the support part from the shaped three-dimensional object is easy and at the same time, a required after-treatment is limited.

公开(公告)号：JP2001214098A

公开(公告)日：2001-08-07

申请号：JP2000345730

申请日：2000-11-13

Applicant: 3 D SYSTEMS INC

Inventor： NGUYEN MY T ,  DOAN VU ,  KWO KELLY ,  BUI LOC V

IPC: B41J2/01 ,  B41M5/00 ,  C08G18/28 ,  C08G18/38 ,  C08G18/71 ,  C08G69/34 ,  C08K5/00 ,  C08K5/205 ,  C08K5/29 ,  C08L77/00 ,  C08L91/06 ,  C08L93/04 ,  C08L101/00 ,  C09D11/00

Abstract: PROBLEM TO BE SOLVED: To provide a means to create a tougher phase change formulation with a component that control its viscosity by using an isocyanate-derived material to control the viscosity for a relatively low viscosity resins including nonpolymeric resins, and waxes, designed for phase change ink jet and other forms of phase change material printing and rapid prototyping applications, especially those requiring materials with increased toughness as new materials for novel and different application of the phase change materials. SOLUTION: This formulation for use in jetting from a print head comprised (a) a component to control the viscosity of the formulation, the component being linear alkyl urethane, (b) a component to promote adhesion to a substrate, (c) a component to impart toughness to the formulation, and (d) a component to control shrinkage of the jetted formulation.

公开(公告)号：JP2001058357A

公开(公告)日：2001-03-06

申请号：JP2000049737

申请日：2000-02-25

Applicant: 3 D SYSTEMS INC

Inventor： DACEY EDWARD J

IPC: B29C67/00

Abstract: PROBLEM TO BE SOLVED: To enable use by a plurality of the cliants of a selective laminate molding system by providing a means receiving one or a plurality of the commands of cliant computers in the selective laminate molding system for shaping a three-dimensional object by performing shaping at every one layer. SOLUTION: A selective laminate molding system is equipped with a material distributing carriage 10 loaded with a material distributing head 12 such as a multi-orifice ink jet head or the like and a smoothing part 14 such as a rotary roller and/or a high temp. roller and the carriage 10 is held so as to be displaceable before and behind along the X-direction in the vicinity of a shaping support stand 20. The material distributing head 12 receives the high temp. molten material supplied in a liquid state from a storage tank to eject the same selectively but this ejection is controlled by a control computer. The control computer receives the commands outputted from a plurality of cliant computers and controls the distributing head 12 according to the commands.

公开(公告)号：JP2000280359A

公开(公告)日：2000-10-10

申请号：JP2000031242

申请日：2000-02-08

Applicant: 3 D SYSTEMS INC

Inventor： GUERTIN MICHELLE D ,  CHARLES W HULL ,  NGUYEN HOP D

IPC: B29C67/00 ,  B29C35/02 ,  B29C35/08 ,  B29C41/02 ,  G05B19/4099 ,  G06F17/50 ,  G06F19/00

Abstract: PROBLEM TO BE SOLVED: To reduce a distortion and to rapidly form a three-dimensional object by forming a layer of a liquid-like material on an object formed layer, exposing the material layer with a stimulus, forming a next layer connected to the object formed layer, repeating the steps, and forming the object by the layers bonded to each other. SOLUTION: In the apparatus for stereolithographically forming a three- dimensional object forms the object of layers bonded to each other by alternately repeating forming of a coating of a material and selectively curing the coating. The forming is started in the state that an elevation base 20 is sunk by a thickness of one layer under an upper surface 30 of a photopolymerizable material 14. The coating of the material 14 is selectively exposed with a stimulus beam, the material of the exposed portion is cured to a desired depth, and an initially cured layer stuck to the base 20 is formed. After the first formation of the cured layer, the base 20 and the one initial cured layer adhered to the base 20 and of a net thickness of the one layer is sunk in the material. Thus, the distortion is reduced, and the forming speed of the object can be accelerated.

公开(公告)号：JP2000141496A

公开(公告)日：2000-05-23

申请号：JP2000000410

申请日：2000-01-05

Applicant: 3 D SYSTEMS INC

Inventor： THOMAS O ORUMUKISUTO ,  CHARLES W HULL ,  BORUZO MODOREKU ,  SERKUCZEWSKI ANDRZEJ R ,  PAUL F JACOB ,  CHARLES W LEWIS ,  MARK A LOUIS ,  ABRAHAM RIRAN

IPC: B29C35/08 ,  B29C41/12 ,  B29C67/00 ,  B29K105/24 ,  G01F23/292 ,  G01F23/36 ,  G05D9/12

Abstract: PROBLEM TO BE SOLVED: To shorten a cycle time of each layer formed in the case of manufacturing a three-dimensional article. SOLUTION: The three-dimensional shaping method comprises the steps of holding a large quantity of polymerizable liquid 11 on a layer formed ahead of a three-dimensional article 40, and sweeping a smoothing member 26 to remove the excess liquid 11 on the layer formed previously. Then, the liquid 11 is exposed with a curing means, and delayed until the sweeping of the member 26 is completed. Thereafter, to cure part of the liquid 11 swept at the desired layer thickness, a curing means is selectively executed at the layer of the liquid 11, and then next layer of the article 40 is formed on a layer formed previously at the article 40. This is repeated plural times to form the article 40 formed continuously with the layer cured with the liquid 11.

公开(公告)号：JPH11314276A

公开(公告)日：1999-11-16

申请号：JP7562799

申请日：1999-03-19

Applicant: 3 D SYSTEMS INC

Inventor： CHARLES W HULL

IPC: B29C35/08 ,  B29C67/00 ,  B29K105/24

Abstract: PROBLEM TO BE SOLVED: To rapidly and economically perform molding of a complex and elaborate shape in formation of a three-dimensional object. SOLUTION: The surface layer of a fluid medium 22 cured by a curing means is selectively cured in order to form a three-dimensional object 30 of a plurality of superposed and cured thin layers 30a, 30b, 30c. Coating of desired thickness is formed on the previously cured thin layer and the curing means 26 is selectively applied to height of the working face 23 of the fluid medium 22 and thereby a cured thin layer fitted to the previously cured thin layer is formed. The three- dimensional object 30 is formed of a plurality of fitted thin layers by repeating this formation and application in a plurality of times. In the forming process, coating of excess thickness is formed on at least a part of one thin layer and thereafter the excess thickness is decreased to desired thickness.

公开(公告)号：JPH0699505A

公开(公告)日：1994-04-12

申请号：JP10564193

申请日：1993-05-06

Applicant: 3 D SYSTEMS INC

Inventor： CHIYAARUZU DABURIYU HARU

IPC: B29C35/02 ,  B29C35/08 ,  B29C67/00 ,  B29K105/24 ,  B41M5/00 ,  G03F7/027

Abstract: PURPOSE: To rapidly produce a three-dimensional matter to move the same to a prototype stage without performing the complicated focusing of a three- dimensional apparatus by forming successively adjacent cross-sectional laminated plates of the three-dimensional matter to the surface of a fluid medium capable of being changed in its physical state in response to synergistic energy. CONSTITUTION: The surface of a UV curable liquid 22 is held to constant height in a container and a UV light spot 27 having intensity curing this liquid is moved over a working surface 23 in a programmed form. When the liquid 22 is cured and a solid material is formed, a lift stand 29 is lowered from the working surface in a programmed form. By this method, a new liquid 22 flows to the surface 23. A part of the new liquid is converted to a solid material by the programmed UV light spot 27 to be bonded to the material present thereunder. This process is continued until the whole of a three-dimensional matter 30 is formed. It is unnecessary to form the arrangement and drawing of a plan in this method.

公开(公告)号：EP0785859B1

公开(公告)日：1998-12-02

申请号：EP95932782.6

申请日：1995-09-21

Applicant: 3 D Systems, Inc.

Inventor： Fruth, Carl ,  Langer, Hans J.

IPC: B29C67/00

CPC classification number: B29C64/40 ,  B29C64/135 ,  B29C64/153 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y50/02

Abstract: In a process for manufacturing a three-dimensional object (6), the object is generated by successively consolidating individual layers (6a, 6b, 6c, 6d, 6e) of liquid or powdery material (3) by electromagnetic radiation (8, 10). A supporting skeleton (20, 21) for supporting the object (6) is consolidated together with the object. The supporting skeleton (20, 21) is subdivided in three dimensions into an inner core area (22) and into an outer wrapping area (23). Radiation is differently regulated to generate different properties in the two areas.

Abstract translation: PCT号 PCT / EP95 / 03725秒。 371日期1997年4月11日二段。 102（e）中的日期1997年4月11日提交的PCT九月 21，1995年PCT酒吧。 号 WO96 / 11790的PCT公布。 日期4月25日，1996In用于制造三维物体的方法（6）worin该目的通过由液体或粉末状材料（3）的各个层（6A，6B，6C，6D，64）的连续的凝固所产生 电磁辐射（8，10）和用于支撑所述物体（6）的支撑结构（20，21）的动作是共凝固与对象（6），所述支撑结构（20，21）一起以三分解 维方式成内部芯部区域（22）到外封套区域（23）和照射而变化的制造两个区域的不同的特性。