WO2005025838A1 - 光学的立体造形および装置 - Google Patents
光学的立体造形および装置 Download PDFInfo
- Publication number
- WO2005025838A1 WO2005025838A1 PCT/JP2004/013565 JP2004013565W WO2005025838A1 WO 2005025838 A1 WO2005025838 A1 WO 2005025838A1 JP 2004013565 W JP2004013565 W JP 2004013565W WO 2005025838 A1 WO2005025838 A1 WO 2005025838A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- mask
- light
- planar
- drawing mask
- planar drawing
- Prior art date
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
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
- B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
Definitions
- the traveling range of the liquid crystal shutter is divided into a plurality of sections, and each section is divided into traveling areas in order to cure the photocurable resin composition with the liquid crystal shutter stopped.
- the hardened state is likely to be discontinuous or non-uniform at the boundary of the three-dimensional object, which tends to cause uneven strength, insufficient strength, poor appearance, and reduced dimensional accuracy.
- the object of the present invention is not limited to small- and medium-sized three-dimensional objects, but also for large three-dimensional objects, with high molding accuracy and high quality three-dimensional molding while preventing curing and uneven strength.
- An object of the present invention is to provide an optical three-dimensional modeling method and an optical three-dimensional modeling apparatus capable of manufacturing a product at a high modeling speed with high productivity.
- an object of the present invention is that a boundary between adjacent drawing regions in a photocured resin layer does not appear as lines, streaks, ridges, etc. in a finally obtained three-dimensional structure, and the boundary is conspicuous.
- an object of the present invention is to provide a high-speed optical system even when an inexpensive light source such as an ordinary ultraviolet lamp is used without using an expensive ultraviolet laser device.
- / ⁇ Provides an optical three-dimensional molding method and an optical three-dimensional expansion device capable of smoothly producing a high-quality three-dimensional molded article having high molding accuracy and no curing unevenness or strength unevenness at a high molding speed. It is to be.
- the present inventor has made intensive studies to achieve the above object. As a result, the surface of the photocurable resin composition is irradiated with light through a planar drawing mask, and a photocured resin layer having a predetermined cross-sectional pattern is sequentially formed to manufacture a three-dimensional structure.
- the present inventor has found that, even when an inexpensive light source such as a normal ultraviolet lamp is used without using an expensive ultraviolet laser device, high molding accuracy and curing unevenness are obtained. It has been found that high-quality three-dimensional objects without defects can be produced smoothly at a high molding speed.
- a light-cured resin layer having a predetermined cross-sectional shape pattern is formed by irradiating light to the surface of the photocurable resin composition through a planar drawing mask under control, and then the photocured resin layer is formed. Is applied with one layer of the photocurable resin composition, and the surface of the photocurable resin composition is irradiated with light under control through a planar drawing mask to form a photocurable resin having a predetermined cross-sectional shape pattern.
- a three-dimensional structure by successively repeating a stereolithography process for further forming a formed resin layer until a predetermined three-dimensional structure is formed; and continuously changing a mask image as a planar drawing mask. Using the resulting drawing mask;
- the above-described molding operation of the present invention includes, for example, disposing a molding table in a gas atmosphere, and forming one layer of a liquid, paste, powder, or thin-film photocurable resin on the surface of the molding tape.
- the composition is irradiated with light under control through a planar drawing mask to form a photocured layer having a predetermined pattern and thickness
- one layer of liquid or paste is formed on the photocured layer surface.
- a powder-cured or thin-film photocurable resin composition is applied, and light is radiated under control through a surface drawing mask under control to integrally form a photocurable layer having a predetermined pattern and thickness. It is also possible to employ a method in which the process is repeated.
- a predetermined sectional shape pattern larger than the area of the planar drawing mask is formed, and a cross-sectional pattern smaller than the area of the planar drawing mask is formed during the forming operation. May need to be formed with
- the cross-sectional area (cross-sectional shape pattern) of the spherical body is larger than the area of the planar drawing mask.
- the cross-sectional area (cross-sectional shape pattern) of the portion corresponding to the corner is smaller than the area of the planar drawing mask.
- the present invention encompasses any of the above-described methods. Therefore, in the present invention, the mask image of the planar drawing mask does not always change continuously from the beginning to the end of the modeling process in a moving image. In some modeling processes, the mask image changes continuously in a moving image, and in another modeling process, the mask image may be a still image according to the cross-sectional shape pattern to be formed. .
- the boundary parts [adjacent part between the first drawing area and the second drawing area (boundary part), adjacent part between the second drawing area and the third drawing area (boundary part), etc.]
- Irradiation is preferred, but this results in overlapping hardening at the boundary (hereinafter sometimes referred to as “overlapping”). If such operations are repeated over multiple layers until the desired three-dimensional object is obtained, the final three-dimensional object will have lines, streaks, and protrusions at the part corresponding to the boundary between adjacent drawing areas. Stripes and the like appear, and the appearance of the three-dimensional object tends to be poor, and in some cases, dimensional accuracy may decrease and strength may become uneven.
- a photo-cured cross-sectional pattern surrounded by A, B, C, and D is formed by continuously changing the mask image of the planar drawing mask 3 in a moving image.
- the cross-sectional shape pattern cannot be formed.
- the part corresponding to (1) is photo-cured
- the part corresponding to the drawing area (2) is irradiated by the second continuous moving single light irradiation
- the drawing area (3) is set by the third continuous moving single light irradiation.
- the boundary and the degree of light irradiation (hardening degree) at the overlapping part a 2 (boundary part) are higher than those of the other parts (parts other than the overlapping parts a 1 and a 2), and accordingly, the overlapping part
- the cured state of a1 and the overlapping part a2 is different from that of the other parts (the degree of curing becomes higher), and in the finally obtained three-dimensional structure, the overlapping part a1 and the overlapping part a2 Lines, streaks, ridges, etc. appear in the corresponding places, and the appearance of the three-dimensional structure is likely to be poor, and in some cases, dimensional accuracy is reduced and strength is uneven.
- the light irradiation intensity on the overlapping portions c 1 and c 2 is set to the other portions during light curing of the drawing region (1), the drawing region (2), and the drawing region (3). Even if the intensity of light irradiation is not lower than the light irradiation intensity, lines, streaks, ridges, etc., at the locations corresponding to the overlapping portions c1 and c2 compared to the case where the overlapping portions c1 and c2 are linear Is suppressed, but this
- the position of the boundary between the adjacent drawing areas in the photocured resin layer is vertically aligned between the vertically stacked photocured resin layers constituting the three-dimensional structure. It can be implemented by programming with a computer or the like so as to be shifted from each other.
- FIG. 4A and Fig. 4B can be cited as examples when this method (i ii) is adopted.
- Fig. 4A and Fig. 4B are both longitudinal sectional views.
- Figure 4A shows This shows the partial structure of a three-dimensional object formed by irradiating the boundary between adjacent drawing areas overlapping with light, and the overlapping part e1, e2, e3, e corresponding to the boundary
- FIG. 4 is a schematic view showing a case where 4, e5, are formed to be shifted from each other between light-cured resin layers vertically stacked to constitute a three-dimensional structure.
- FIG. 4B shows a three-dimensional structure obtained by stereolithography by simply joining the edges of the drawing area without overlapping light irradiation at the boundary between the adjacent drawing areas.
- the means or system for continuously moving the planar drawing mask with respect to the surface (molding surface) of the photocurable resin thread and the product there is no particular limitation on the means or system for continuously moving the planar drawing mask with respect to the surface (molding surface) of the photocurable resin thread and the product.
- a linear guide, shaft, flat bar, etc. as a guide
- drive is transmitted using a ball screw, trapezoidal screw, timing belt, rack & pinion, chain, etc.
- the drive source is an AC servo motor, DC servo motor, A testing motor, a pulse motor, or the like can be used.
- a linear motor system that serves both as a guide and a drive, and the end of an arm of an articulated robot.
- any method and method can be used for moving the system.
- a pulse motor is preferable as the driving source because the planar drawing mask can be precisely and continuously moved at a micro pitch and can be synchronized with the continuous change of the mask image of the planar drawing mask with high precision.
- one pixel pitch (distance between adjacent pixels) on the surface of the photocurable resin composition becomes 0.1 mm (modeling accuracy required for stereolithography).
- the exposure surface size is 32 mm X 24 mm for QVGA, 64 mm X 48 mm for VGA, 80 mm X 60 mm for SVGA, and UXGA 102.4 mm X 76.8 mm, QSXGA 256 mm X 264.8 mm, Exposure surface
- the light source is disposed on the back side of the planar drawing mask, and light from the light source is applied to the surface of the photocurable resin composition via the planar drawing mask.
- the shape, size, and number of light sources are not particularly limited, and can be appropriately selected according to the shape and size of the planar drawing mask, the shape and size of the light-cured sectional shape pattern to be formed, and the like.
- the light source may be point-like, spherical, rod-like, or planar, or a point-like or spherical light source may be directly arranged on the back side of the planar drawing mask in one or more rows. Good.
- a method of condensing light using a plurality of light sources and increasing light energy may be adopted.
- an optical fiber or a light guide is used, there is an advantage that a plurality of light sources can be easily focused.
- the photocurable resin composition used in the present invention may contain a filler such as solid fine particles if necessary.
- a filler such as solid fine particles if necessary.
- the use of a photocurable resin composition containing a filler can improve dimensional accuracy by reducing volumetric shrinkage during curing, improve mechanical properties and heat resistance, and the like.
- the whiskers have a diameter of 0.3 to 1 ⁇ , especially 0.3 to 0.7 / xm, and a length of 10 to 7 O ⁇ m, especially 20 to 5 O ⁇ m. It is preferable to use those having a specific ratio of Si 0-: L 00, especially 20-70 ⁇ .
- the whisker dimensions and the aspect ratio referred to here are those measured using a laser diffraction / scattering particle size distribution analyzer.
- the type of the whiskers is not particularly limited, and examples thereof include aluminum borate-based whiskers, aluminum oxide-based whiskers, aluminum nitride-based whiskers, magnesium oxide-based whiskers, and titanium oxide-based whiskers. One or more of these can be used.
- FIGS. 5 to 8 show specific examples of the main parts of an optical stereolithography apparatus (stereolithography apparatus) used in the optical three-dimensional stereolithography method (stereolithography method) of the present invention, respectively.
- FIG. 9 shows the steps (operating procedures) of performing the optical shaping according to the method of the present invention using the optical shaping apparatus as shown in FIGS. 5 to 8.
- the dimensions of the planar drawing mask 3 (3a, 3b, etc.) should be appropriate according to the shape and dimensions (especially the cross-sectional shape and dimensions) of the stereolithographic object to be manufactured. be able to.
- a planar drawing mask 3 (3a) whose width dimension is smaller than the entire width (the entire width of the molding surface) of a predetermined photocured cross-sectional shape pattern to be formed.
- 3b) can be used to manufacture a predetermined photocured cross-sectional shape pattern having a larger dimension than the planar drawing mask 3.
- the optical shaping by reducing the projection drawing surface, thereby increasing the drawing resolution.
- the light intensity per unit area in the drawing unit increases, and the irradiation time in the irradiation unit can be shortened.
- a photocurable resin or composition having a curing sensitivity of 5 mJ was used, and the photocurable resin composition was stopped (fixed) using a planar drawing mask of 250 mm ⁇ 250 mm. Assuming that there is an image of 1 mWZ cm 2 that was illuminated all at once in the size of mm, the required light irradiation time at this time is 5 sec.
- the optical three-dimensional object forming method and apparatus of the present invention provide a high-quality three-dimensional object having no appearance of undesired lines, streaks, ridges, etc., excellent appearance and dimensional accuracy, and having no unevenness in strength or curing. Can be used effectively for high productivity with high molding accuracy and high molding speed.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/570,232 US7931851B2 (en) | 2003-09-11 | 2004-09-10 | Stereolithographic method and apparatus |
EP04773209A EP1666235B1 (en) | 2003-09-11 | 2004-09-10 | Devices for forming optical 3-dimensional object and methods using them |
CN200480026047XA CN1849207B (zh) | 2003-09-11 | 2004-09-10 | 光学三维造型方法及装置 |
JP2005513966A JP4417911B2 (ja) | 2003-09-11 | 2004-09-10 | 光学的立体造形方法および装置 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003319572 | 2003-09-11 | ||
JP2003/319572 | 2003-09-11 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005025838A1 true WO2005025838A1 (ja) | 2005-03-24 |
Family
ID=34308571
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/013565 WO2005025838A1 (ja) | 2003-09-11 | 2004-09-10 | 光学的立体造形および装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7931851B2 (ja) |
EP (1) | EP1666235B1 (ja) |
JP (1) | JP4417911B2 (ja) |
CN (1) | CN1849207B (ja) |
WO (1) | WO2005025838A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006272916A (ja) * | 2005-03-30 | 2006-10-12 | Jsr Corp | 光造形方法 |
JP2007111989A (ja) * | 2005-10-20 | 2007-05-10 | Cmet Inc | 光学的立体造形方法および装置 |
US8703037B2 (en) | 2005-04-01 | 2014-04-22 | 3D Systems, Inc. | Edge smoothness with low resolution projected images for use in solid imaging |
US8985989B2 (en) * | 2012-05-03 | 2015-03-24 | Young Optics Inc. | Three-dimensional printing apparatus |
US9415544B2 (en) * | 2006-08-29 | 2016-08-16 | 3D Systems, Inc. | Wall smoothness, feature accuracy and resolution in projected images via exposure levels in solid imaging |
JP2017007148A (ja) * | 2015-06-18 | 2017-01-12 | ローランドディー.ジー.株式会社 | 三次元造形装置 |
JP2018144236A (ja) * | 2017-03-01 | 2018-09-20 | 株式会社ミマキエンジニアリング | 造形装置及び造形方法 |
JP2020508903A (ja) * | 2017-02-28 | 2020-03-26 | スリーディー システムズ インコーポレーテッド | オーバーラップする光エンジンを有する三次元プリントシステム |
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US8784723B2 (en) | 2007-04-01 | 2014-07-22 | Stratasys Ltd. | Method and system for three-dimensional fabrication |
US8540922B2 (en) * | 2007-08-27 | 2013-09-24 | Hewlett-Packard Development Company, L.P. | Laser patterning of a carbon nanotube layer |
US20090061161A1 (en) * | 2007-08-27 | 2009-03-05 | Lynn Sheehan | Laser patterning of a cross-linked polymer |
JP4900349B2 (ja) * | 2008-09-08 | 2012-03-21 | ソニー株式会社 | 金型製造方法、機能性フィルムの製造方法及び機能性フィルム |
US8678805B2 (en) | 2008-12-22 | 2014-03-25 | Dsm Ip Assets Bv | System and method for layerwise production of a tangible object |
US8777602B2 (en) | 2008-12-22 | 2014-07-15 | Nederlandse Organisatie Voor Tobgepast-Natuurwetenschappelijk Onderzoek TNO | Method and apparatus for layerwise production of a 3D object |
CN102325644B (zh) | 2008-12-22 | 2014-12-10 | 荷兰应用科学研究会(Tno) | 用于3d物体的分层生产的方法及设备 |
JP2010201501A (ja) * | 2009-03-06 | 2010-09-16 | Sony Corp | 光加工方法およびマスク |
WO2013048415A1 (en) * | 2011-09-29 | 2013-04-04 | Intel Corporation | Low temperature thin wafer backside vacuum process with backgrinding tape |
CN104259463A (zh) * | 2014-08-27 | 2015-01-07 | 无锡市华牧机械有限公司 | 一种合金铸造的快速形成方法 |
TWI568601B (zh) * | 2014-10-02 | 2017-02-01 | 三緯國際立體列印科技股份有限公司 | 立體列印裝置及其列印方法 |
AT516769B1 (de) * | 2015-01-22 | 2017-12-15 | Way To Production Gmbh | Verfahren zur Belichtung eines dreidimensionalen Bereichs |
AT518101B1 (de) | 2015-12-17 | 2018-05-15 | Stadlmann Klaus | Verfahren zum Erzeugen eines dreidimensionalen Gegenstands |
US11161201B2 (en) | 2017-05-31 | 2021-11-02 | General Electric Company | System and methods for fabricating a component with a laser device |
US20190022941A1 (en) * | 2017-07-21 | 2019-01-24 | Ackuretta Technologies Pvt. Ltd. | Digital light processing three-dimensional printing system and method |
US11565465B2 (en) | 2017-12-07 | 2023-01-31 | Canon Kabushiki Kaisha | Method for manufacturing three-dimensional shaped object, additive manufacturing apparatus, and article |
WO2019113949A1 (zh) * | 2017-12-15 | 2019-06-20 | 吴江中瑞机电科技有限公司 | 光固化激光扫描系统和方法 |
CN108274745B (zh) * | 2017-12-29 | 2021-02-12 | 深圳摩方新材科技有限公司 | 一种步进拼接3d打印系统及打印方法 |
EP3702132B1 (de) * | 2019-02-26 | 2023-01-11 | UpNano GmbH | Verfahren zur lithographiebasierten generativen fertigung eines dreidimensionalen bauteils |
CN111619108A (zh) * | 2019-02-28 | 2020-09-04 | 宁波市石生科技有限公司 | 一种新型光固化3d打印设备 |
NO20190617A1 (en) * | 2019-05-16 | 2020-11-17 | Visitech As | System and method for exposing a material with images |
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- 2004-09-10 CN CN200480026047XA patent/CN1849207B/zh not_active Expired - Fee Related
- 2004-09-10 US US10/570,232 patent/US7931851B2/en active Active
- 2004-09-10 EP EP04773209A patent/EP1666235B1/en not_active Expired - Fee Related
- 2004-09-10 WO PCT/JP2004/013565 patent/WO2005025838A1/ja active Application Filing
- 2004-09-10 JP JP2005513966A patent/JP4417911B2/ja not_active Expired - Fee Related
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Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1864785A1 (en) * | 2005-03-30 | 2007-12-12 | JSR Corporation | Seterolithography method |
JP4525424B2 (ja) * | 2005-03-30 | 2010-08-18 | Jsr株式会社 | 光造形方法 |
EP1864785A4 (en) * | 2005-03-30 | 2012-11-07 | Jsr Corp | SETEROLITHOGRAPHIEVERFAHREN |
JP2006272916A (ja) * | 2005-03-30 | 2006-10-12 | Jsr Corp | 光造形方法 |
US8703037B2 (en) | 2005-04-01 | 2014-04-22 | 3D Systems, Inc. | Edge smoothness with low resolution projected images for use in solid imaging |
JP2007111989A (ja) * | 2005-10-20 | 2007-05-10 | Cmet Inc | 光学的立体造形方法および装置 |
US9415544B2 (en) * | 2006-08-29 | 2016-08-16 | 3D Systems, Inc. | Wall smoothness, feature accuracy and resolution in projected images via exposure levels in solid imaging |
US8985989B2 (en) * | 2012-05-03 | 2015-03-24 | Young Optics Inc. | Three-dimensional printing apparatus |
USRE48609E1 (en) * | 2012-05-03 | 2021-06-29 | Young Optics Inc. | Three-dimensional printing apparatus |
JP2017007148A (ja) * | 2015-06-18 | 2017-01-12 | ローランドディー.ジー.株式会社 | 三次元造形装置 |
JP2020508903A (ja) * | 2017-02-28 | 2020-03-26 | スリーディー システムズ インコーポレーテッド | オーバーラップする光エンジンを有する三次元プリントシステム |
JP2018144236A (ja) * | 2017-03-01 | 2018-09-20 | 株式会社ミマキエンジニアリング | 造形装置及び造形方法 |
US11040488B2 (en) | 2017-03-01 | 2021-06-22 | Mimaki Engineering Co., Ltd. | Building apparatus and building method |
Also Published As
Publication number | Publication date |
---|---|
JP4417911B2 (ja) | 2010-02-17 |
JPWO2005025838A1 (ja) | 2006-11-16 |
CN1849207B (zh) | 2010-05-26 |
EP1666235B1 (en) | 2012-11-07 |
US7931851B2 (en) | 2011-04-26 |
CN1849207A (zh) | 2006-10-18 |
EP1666235A1 (en) | 2006-06-07 |
US20070029706A1 (en) | 2007-02-08 |
EP1666235A4 (en) | 2009-09-02 |
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