EP2282885A2 - Fabrication additive - impression 3d - Google Patents

Fabrication additive - impression 3d

Info

Publication number
EP2282885A2
EP2282885A2 EP09761547A EP09761547A EP2282885A2 EP 2282885 A2 EP2282885 A2 EP 2282885A2 EP 09761547 A EP09761547 A EP 09761547A EP 09761547 A EP09761547 A EP 09761547A EP 2282885 A2 EP2282885 A2 EP 2282885A2
Authority
EP
European Patent Office
Prior art keywords
meth
acrylate
powder matrix
group
powder
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP09761547A
Other languages
German (de)
English (en)
Inventor
Günter Schmitt
Gilbert KÜHL
Thomas Riermeier
Armin Steffan
Dirk Poppe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Roehm GmbH Darmstadt
Original Assignee
Evonik Roehm GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Evonik Roehm GmbH filed Critical Evonik Roehm GmbH
Publication of EP2282885A2 publication Critical patent/EP2282885A2/fr
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/165—Processes of additive manufacturing using a combination of solid and fluid materials, e.g. a powder selectively bound by a liquid binder, catalyst, inhibitor or energy absorber
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2033/00—Use of polymers of unsaturated acids or derivatives thereof as moulding material
    • B29K2033/04—Polymers of esters
    • B29K2033/12—Polymers of methacrylic acid esters, e.g. PMMA, i.e. polymethylmethacrylate
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
    • B29K2995/002—Coloured
    • B29K2995/0021—Multi-coloured

Definitions

  • the invention relates to an additive fabrication method with which colored three-dimensional objects can be produced from a powder matrix without additional process steps for solidifying the material.
  • Rapid prototyping or rapid manufacturing processes generally additive fabrication processes are production processes that have the aim of converting existing 3D CAD data directly and quickly into workpieces, if possible without manual detours or forms.
  • EP 0171069 discloses that in stereolithography, a layer of a liquid polymer resin is deposited and selectively cured by selective energy input by means of a tiltable laser beam.
  • WO 88/02677 describes the SLS process in which a layer of a sintered material is applied and selectively partially melted and bonded thereto. Again, the selective energy supply via a pivotable laser beam.
  • WO 95/05943 a method of selective application from the group of rapid prototyping is known.
  • a building material is selectively in selected parts of the process area by means of a drop-on-demand print head.
  • the remaining sections are also filled with molten wax as a support material by means of a drop-on-demand printhead.
  • Each subsequent layer is deposited on a previous layer only after it has solidified. This process is repeated layer by layer until the structural body is completed.
  • Wax or similar supportive materials such as resins can be applied by a drop-on-demand print head but only in very small drops because of the material-specific surface tension.
  • the deposition of the wax drops to fill a large volume of the supporting structure per layer is very expensive and can therefore lead to large objects to production periods of several days.
  • EP1227926 describes a rapid prototyping method in which a building material layer is built up in layers, wherein a supporting fluid fills the remaining partial areas.
  • the liquid resin materials used are aftertreated with a chemical reactant contained in the supporting liquid to cure it.
  • the curing process is started by heating.
  • the disadvantage here is the handling of liquids, the particular demands on the components in terms of loss-free transport and storage.
  • it is necessary to work with complicated structures with supporting structures that support the construction to completion and those in another
  • Processing step must be removed again, for example, be resolved in appropriate media.
  • the task was to provide a 3D printing process that works without the use of supporting fluids. It was the task to be able to produce the objects in sufficient strength. A post-processing by the application of strength-increasing coatings or solidification via a subsequent baking process should be avoided.
  • Another task was to be able to represent colored objects, whereby the color is not introduced by an additional processing step.
  • Powder material characterized in that a reactive methyl (meth) acrylate / polymethyl (meth) acrylate binder is applied with accelerator to a powder matrix, and the matrix contains an initiator system.
  • the notation (meth) acrylate as used herein means both methacrylate, e.g. Methyl methacrylate, ethyl methacrylate, etc., as well as acrylates, e.g. Ethylhexyl acrylate, ethyl acrylate, etc., as well as mixtures of both.
  • dyes may be added to the binder. Any dyes may be added to the binder, preferably the three primary colors and black.
  • the binders are colorless.
  • the binders contain reactive
  • (meth) acrylates which are derived from saturated alcohols having from 1 to 40 carbon atoms, preferably from 1 to 24 carbon atoms, it being possible for the alcohol radical to be linear or branched.
  • Particularly preferred are dimethylaminoethyl (meth) acrylate, trimethylammoniumethylmethacrylate chloride, dimethylaminopropylmethacrylamide and trimethylammoniumpropylmethacrylamide chloride.
  • the powder matrix can consist of organic or inorganic spherical material. It is advantageous if the powder matrix consists of material with different particle size distribution.
  • organic materials preferably polymethyl (meth) acrylate or polyamide, and mixtures thereof.
  • inorganic materials preferably of SiO 2 or Al (OH) 3, and mixtures thereof.
  • binders with accelerator and initiator in the powder matrix are suitable.
  • the accelerators in the binder are selected from the group of toluidines.
  • initiator systems selected from the group of peroxides, preferably benzoyl peroxide or lauryl peroxide, in the powder matrix are then used.
  • Another suitable system contains organosulfonic compounds as accelerators in the binder. These are then preferably combined with initiators selected from the group of permalates. Upon encounter of these or other suitable binders with accelerator and the corresponding initiator, a chemical reaction occurs at the point of application. This leads to curing of the matrix.
  • the binder liquid is applied via a movable cartridge, which is above the
  • Powder material reservoir is arranged.
  • a plurality of ink cartridges may be used, comprising the binder, the accelerator and dyes and other auxiliary and
  • the cartridge comprises at least one binder nozzle, each nozzle being coupled to a binder supply to selectively apply binder to the layers of the building material.
  • binder may be applied in the layers of the powder matrix. Due to the different binder amounts, the partial strength can be controlled. In particular, on the outer sides or at higher stress points thus a higher strength is achieved.
  • a supply of colored and colorless binders is used. Drops of binder and Dyes are selectively applied to the powder matrix to produce multicolor objects.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Civil Engineering (AREA)
  • Composite Materials (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)

Abstract

La présente invention concerne une méthode de fabrication additive permettant la réalisation d'objets tridimensionnels colorés à partir d'une matrice poudreuse, n'impliquant pas d'étape supplémentaire pour la solidification de la matière.
EP09761547A 2008-06-11 2009-04-23 Fabrication additive - impression 3d Ceased EP2282885A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102008002352A DE102008002352A1 (de) 2008-06-11 2008-06-11 Additive Fabrication - 3 D Druck
PCT/EP2009/054876 WO2009149984A2 (fr) 2008-06-11 2009-04-23 Fabrication additive - impression 3d

Publications (1)

Publication Number Publication Date
EP2282885A2 true EP2282885A2 (fr) 2011-02-16

Family

ID=41278251

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09761547A Ceased EP2282885A2 (fr) 2008-06-11 2009-04-23 Fabrication additive - impression 3d

Country Status (4)

Country Link
EP (1) EP2282885A2 (fr)
DE (1) DE102008002352A1 (fr)
TW (1) TW201012635A (fr)
WO (1) WO2009149984A2 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106132668B (zh) * 2014-03-25 2018-05-15 Dws有限公司 用于对借助于立体光刻工艺制造的对象的支承元件的开发点进行限定的改进的计算机实施方法
TWI508026B (zh) * 2014-05-29 2015-11-11 Wistron Corp 立體物件原型圖的產生方法、裝置及電腦程式產品
US11724447B2 (en) 2016-07-22 2023-08-15 Covestro (Netherlands) B.V. Methods and compositions for forming three-dimensional objects by additive fabrication
DE102020101783A1 (de) 2020-01-24 2021-07-29 Additive elements GmbH Verfahren zum Herstellen eines dreidimensionalen Formteils

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4575330A (en) 1984-08-08 1986-03-11 Uvp, Inc. Apparatus for production of three-dimensional objects by stereolithography
KR960008015B1 (ko) 1986-10-17 1996-06-19 보드 오브 리젼츠, 디 유니버시티 오브 텍사스 시스템 선택적 소결에 의한 부품의 제조 방법 및 장치
US5051334A (en) * 1989-04-21 1991-09-24 E. I. Du Pont De Nemours And Company Solid imaging method using photohardenable compositions containing hollow spheres
JPH09503969A (ja) 1993-08-26 1997-04-22 サンダース プロトタイプス インコーポレーテッド 三次元モデルメーカー
DE19848896A1 (de) * 1998-10-23 2000-04-27 Bayer Ag Copolymerisate für Rapid Prototyping
DE19948591A1 (de) 1999-10-08 2001-04-19 Generis Gmbh Rapid-Prototyping - Verfahren und - Vorrichtung
WO2001034371A2 (fr) * 1999-11-05 2001-05-17 Z Corporation Systemes de produit et procedes pour impression tridimensionnelle
US7309728B2 (en) * 2003-01-09 2007-12-18 Hewlett-Packard Development Company, L.P. Freeform fabrication low density material systems
WO2005021247A1 (fr) * 2003-08-28 2005-03-10 Fuji Photo Film Co., Ltd. Procede de production d'un article de forme tridimensionnelle
EP1475220A3 (fr) * 2003-05-09 2009-07-08 FUJIFILM Corporation Procédé pour la fabrication d'un modèle tridimensionnel et modèle tridimensionnel
US7220380B2 (en) * 2003-10-14 2007-05-22 Hewlett-Packard Development Company, L.P. System and method for fabricating a three-dimensional metal object using solid free-form fabrication
US7381360B2 (en) * 2003-11-03 2008-06-03 Hewlett-Packard Development Company, L.P. Solid free-form fabrication of three-dimensional objects
US8267683B2 (en) * 2005-07-27 2012-09-18 Shofu Inc. Apparatus for forming layered object
DE102006038858A1 (de) * 2006-08-20 2008-02-21 Voxeljet Technology Gmbh Selbstaushärtendes Material und Verfahren zum schichtweisen Aufbau von Modellen

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2009149984A2 *

Also Published As

Publication number Publication date
DE102008002352A1 (de) 2009-12-17
WO2009149984A2 (fr) 2009-12-17
WO2009149984A3 (fr) 2010-02-18
TW201012635A (en) 2010-04-01

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