WO2004076102A1 - 三次元形状造形物の製造装置及び製造方法 - Google Patents
三次元形状造形物の製造装置及び製造方法 Download PDFInfo
- Publication number
- WO2004076102A1 WO2004076102A1 PCT/JP2004/002181 JP2004002181W WO2004076102A1 WO 2004076102 A1 WO2004076102 A1 WO 2004076102A1 JP 2004002181 W JP2004002181 W JP 2004002181W WO 2004076102 A1 WO2004076102 A1 WO 2004076102A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- light beam
- powder
- powder layer
- chamber
- sintered
- Prior art date
Links
Classifications
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- 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
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/40—Radiation means
- B22F12/44—Radiation means characterised by the configuration of the radiation means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/32—Process control of the atmosphere, e.g. composition or pressure in a building chamber
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/36—Process control of energy beam parameters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/70—Recycling
- B22F10/77—Recycling of gas
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/70—Gas flow means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/90—Means for process control, e.g. cameras or sensors
-
- 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
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Definitions
- a powder layer composed of inorganic V or organic powder is irradiated with a light beam to form a sintered layer, and the sintered layer is laminated to produce a desired three-dimensional shape.
- the present invention relates to a manufacturing apparatus and a manufacturing method for original shaped objects. Background art
- the powder layer formed on the stage is irradiated with a light beam (directed energy beam, for example, a laser) to form a sintered layer, and a new powder layer is formed on the sintered layer to produce a light beam.
- a light beam directed energy beam, for example, a laser
- a new powder layer is formed on the sintered layer to produce a light beam.
- a powder supply means for supplying powder to a stage provided in a chamber maintained in a predetermined atmosphere to form a powder layer is disposed, and an optical beam irradiation means disposed outside the chamber is used to form a chamber.
- the powder layer is irradiated with a light beam through a light-transmitting window (including one formed with a lens) provided immediately above the stage in the first stage.
- the take-out mechanism is not taken into consideration, and it is currently being taken out manually.
- the modeled object to be manufactured is of a size such as 50 O mm X 50 O mm 10 O O mm, and it is manufactured with metal powder having a specific gravity of about 6 to 8, it is obtained.
- the modeled object weighs between 150 and 200 kg and cannot be removed by human power at all, so a crane is used.
- the light beam irradiating means In the above case where the light beam irradiating means is located above the stage in the chamber, the light beam irradiating means must be moved when the modeled object is taken out by the crane. Since the positioning reproducibility is lost, the machining accuracy will be extremely lowered, and adjustment work will be required each time molding processing is performed.
- the present invention has been made in view of the above-described problems of the prior art, and the main object of the present invention is to provide a three-dimensional shaped article manufacturing apparatus and an apparatus that can eliminate the influence of the scattered powder. Another object of the present invention is to provide a manufacturing apparatus and a manufacturing method for a three-dimensional shaped object that can be easily taken out from the chamber. . Disclosure of the invention
- the present invention provides a light beam irradiation means for irradiating a predetermined region of a powder layer formed on a stage with a light beam to sinter the powder in the predetermined region, and on the stage and already baked.
- a powder supply means for supplying a powder layer onto the sintered layer, and the light beam irradiation means is disposed at a position shifted from a position immediately above the irradiation range of the light beam, and the light beam is obliquely applied to the powder layer. It is characterized by being irradiated.
- the fumes generated by irradiating the powder layer with the light beam and heating rise and go to the position directly above, but the light beam is irradiated from a position avoiding this position.
- fogging by the fumes of the light beam irradiation means (a window provided in the chamber 1 to transmit the light beam when the chamber is partitioned) is reduced.
- the light beam irradiating means preferably includes a beam shape correcting means for making the light beam spot shape on the irradiation surface substantially circular. Despite the irradiation from an oblique direction, the powder layer can be irradiated with a light beam in a circular spot shape, and stable sintering can be performed.
- the light is transparent and prevents the passage of fumes generated from the sintered part by the light beam irradiation. If the blocking means is arranged, it is possible to more reliably prevent the light transmittance from decreasing.
- the stage and the powder supply means are closed at a position directly above the light beam irradiation range in the chamber 1 for taking out the sintered three-dimensional shaped object and with an openable / closable lid.
- An opening is provided, and after sintering is completed, unsolidified powder on the stage is removed, and then the opening is opened and the sintered three-dimensional shaped product is taken out of the chamber.
- the molded object can be taken out by a crane or the like without causing interference with the light beam irradiation means, and powder can be prevented from being scattered outside the chamber.
- the residual atmosphere is measured by measuring the amount of residual fumes in the chamber and measuring the oxygen concentration in the chamber while purifying the atmosphere in the chamber and replacing the atmosphere with gas.
- the opening is opened and the three-dimensional shaped object is taken out, so that contamination of the external environment can be prevented.
- FIG. 1 is a partial cross-sectional perspective view of a three-dimensional shaped object manufacturing apparatus according to the present invention.
- FIG. 2 is an operation explanatory diagram of the manufacturing apparatus of FIG.
- FIG. 3 is a flowchart showing a method for controlling the manufacturing apparatus of FIG.
- FIG. 4 is a block diagram for forming a light beam irradiation path.
- FIG. 5 is a vertical cross-sectional view for explaining the generation state of fumes in the manufacturing apparatus of FIG.
- FIG. 6 is a perspective view of a beam shape correcting means provided in the manufacturing apparatus of FIG. 7A to 7D are explanatory diagrams of beam shape correction by the beam shape correcting means.
- FIG. 8A is a schematic longitudinal sectional view showing a modified example of the manufacturing apparatus according to the present invention.
- FIG. 8B is a schematic longitudinal sectional view showing another modified example of the manufacturing apparatus according to the present invention.
- FIG. 9 is a schematic longitudinal sectional view showing another modified example of the manufacturing apparatus according to the present invention.
- FIG. 10 is a schematic longitudinal sectional view showing an opening / closing structure of a chamber ceiling part of the manufacturing apparatus according to the present invention.
- FIG. 11A is a schematic longitudinal sectional view showing another opening / closing structure of the chamber ceiling.
- Fig. 11 B is a schematic longitudinal sectional view showing still another open / close structure of the ceiling of the chamber.
- FIG. 12 is a schematic longitudinal sectional view of the manufacturing apparatus according to the present invention when the fume capturing means is displaced from the opening.
- FIG. 13 is a schematic longitudinal sectional view showing a modification of the manufacturing apparatus according to the present invention.
- FIG. 14A and FIG. 14B are schematic longitudinal sectional views showing another modified example of the manufacturing apparatus according to the present invention.
- FIG. 15 is a schematic longitudinal sectional view showing still another modified example of the manufacturing apparatus according to the present invention.
- FIG. 16A is a schematic vertical cross-sectional view of the manufacturing apparatus according to the present invention in the case where a screw hole for a suspension bolt is provided in a modeled article.
- FIG. 16B is a schematic vertical cross-sectional view of the manufacturing apparatus according to the present invention, in which a threaded port hole is provided in the plate between the stage and the modeled object.
- FIG. 1 shows an apparatus for producing a three-dimensional shaped object according to the present invention, comprising a powder layer forming means 2, a light beam irradiation means 3, and a chamber 5 in which the powder layer forming means 2 is housed. ing.
- the powder layer forming means 2 supplies the metal powder in the powder tank 23 3 on the stage 20 that moves up and down by a cylinder drive in the space surrounded by the outer periphery by the squeegee blade 21 and smoothes it.
- a powder layer 10 having a predetermined thickness ⁇ t 1 is formed on the stage 20.
- the light beam irradiating means 3 irradiates the powder layer 10 with a laser output from the laser vibrator 30 through a scanning optical system such as a galvano mirror 31, and is disposed outside the chamber 5.
- the light beam emitted from the light beam irradiating means 3 is irradiated onto the powder layer through a light transmissive window 50 provided in the chamber 5.
- a beam shape correcting means 35 for irradiating a substantially circular spot beam is disposed on the powder layer 10 which is an irradiation surface, as described later.
- the window 50 is made of a material that allows laser light to pass therethrough.
- the laser oscillator 30 is a carbon dioxide laser, a plate made of ZnSe or the like can be used. It may be a lens (eg, F ⁇ lens).
- the three-dimensional shaped object is manufactured by supplying the powder overflowed from the powder tank 2 3 onto the surface of the stage 2 0 and the blade 2 1 at the same time as the blade 2 1
- a powder layer 10 of the first layer is formed by leveling with 1, and a portion of the powder layer 10 to be cured is irradiated with a light beam (laser) L to sinter the powder, and the base 22
- An integrated sintered layer 1 1 is formed.
- the stage 20 is lowered by a predetermined height, and the powder is supplied again and leveled with the plate 21.
- the second layer is formed on the end layer 10 and the sintered layer 11 on the first layer.
- the first powder layer 10 was formed, and the portion to be cured of the second powder layer 10 was irradiated with the light beam L to sinter the powder and integrated with the lower sintered layer 1 1.
- Sintered layer 1 1 is formed.
- iron powder having an average particle diameter of 30 ⁇ can be used as the powder, but the powder is not limited thereto.
- Both the powder layer forming means 2 and the light beam irradiating means 3 are electrically connected to the control device 4, and the control device 4 sets the metal powder in the powder tank 2 3 to the stage for the powder layer forming means 2. Control for feeding onto 20 and control for leveling supplied metal powder with blade 21 are performed. On the other hand, for the light beam irradiation means 3, the control device 4 performs ON / OFF control (oscillation control) of the laser oscillator 30 when irradiating the powder layer 10 with a laser, and generates a substantially circular spot beam as a powder layer.
- the beam shape correction means 3 5 is controlled to condense the diameter to irradiate 10 and the laser irradiation position control (deflection control) is applied to the scanning optical system in order to irradiate the laser to a predetermined position of the powder layer Like to do. More specifically, the control device 4 first determines irradiation coordinates based on the irradiation path of the light beam input in advance. Next, after calculating the deflection angle (mirror angle) of the galvano mirror 31 and calculating the rotation angle and position of, for example, a cylindrical lens constituting the beam shape correcting means 35, the laser oscillator 30 based on the calculation result. ON / OFF control is performed on the galvano mirror, deflection control of the galvano mirror 31 is performed, and the angle and position of the cylindrical lens are controlled.
- the deflection angle mirror angle
- the irradiation path of the light beam can be created in advance from 3D CAD data.
- STL data generated from a 3D CAD model is created with contour data for each cross-section sliced at an equal pitch (if the Atl is 0.05 mm, 0.05 mm pitch)
- Irradiation path data can be generated by performing irradiation path generation processing on this data and input to the modeling apparatus together with the contour shape data.
- This manufacturing apparatus lowers the stage 20 to form a new powder layer 10, and repeats the process of irradiating the light beam to make the required portion the sintered layer 11 1.
- This is intended to produce the desired three-dimensional shaped object as a layered object, and a carbon dioxide laser can be suitably used as the light beam, and the thickness ⁇ t 1 of the powder layer 10 is the obtained three-dimensional
- the thickness is preferably about 0.05 mm.
- the window 50 in the chamber 5 is arranged at a position shifted laterally from the position just above.
- the light beam is applied to the powder layer 10 from an oblique direction.
- the window 50 and the irradiation range A do not overlap. However, even if they partially overlap, if the light beam L does not pass through the overlapping area in the window 50, there is a problem. It will never be.
- the beam shape correcting means 35 is arranged in front of the scanning optical system composed of the galvanometer mirror 31 in the light beam irradiating means 3, and the powder layer 10 which is the irradiation surface is substantially omitted. A circular spot beam is irradiated.
- FIG. 6 shows an example of the beam shape correcting means 35, which is a pair of cylindrical lens lenses 3 6 and 3 7 and a rotational drive mechanism for rotating the cylindrical lenses 3 6 and 3 7 around the axis of the light beam (see FIG. Not shown).
- the beam shape correcting means 35 which is a pair of cylindrical lens lenses 3 6 and 3 7 and a rotational drive mechanism for rotating the cylindrical lenses 3 6 and 3 7 around the axis of the light beam (see FIG. Not shown).
- the major axis is as shown in Fig. 7C or Fig. 7D.
- a light beam L having an elliptical cross section facing each direction can be obtained.
- the ratio of the major axis to the minor axis of the elliptical cross section can be adjusted arbitrarily. can do.
- a substantially circular spot beam can be applied to the irradiated surface.
- the cross-sectional shape of the light beam can be corrected according to the irradiation angle that changes depending on the irradiation position of the light beam.
- a circular spot beam can always be applied to the irradiated surface.
- two cylindrical lenses 36 and 37 are used as the light beam shape correction means 35.
- only one cylindrical lens is used to direct a circular spot beam in a specific direction. It may be changed to an elliptical spot beam.
- a circular or substantially circular spot beam is irradiated to the powder layer 10 in the light beam irradiation range A by irradiating the elliptical spot beam obliquely.
- Figures 8A and 8B show other examples. This is because it is not possible to completely prevent the fumes 6 from adhering to the windows 50 by simply shifting the windows 50 that transmit the light beams L in the chamber 5 from the position immediately above the irradiation range of the light beams L.
- the inside of the chamber 5 is bisected by a light-blocking means that blocks the passage of the fumes 6, the stage 20 is arranged on one side, and the window 50 that serves as the final emission part of the light beam L on the other side Is placed.
- a vertically extending transparent plate 60 as shown in FIG. 8A may be used, but as shown in FIG. 8B, a gas curtain 61 can be preferably used.
- the gas curtain 61 is composed of an atmospheric gas such as nitrogen gas supplied to the chamber 5 to make the inside of the chamber 5 a non-oxidizing atmosphere, the fume does not reach the window 50 side while maintaining the atmosphere. This can be easily realized.
- Figure 9 shows another example. This is one in which the fume capturing means 7 is arranged at a position immediately above the irradiation range of the light beam L.
- the fume trapping means 7 in the illustrated example is composed of an air pump 70 and a filter 7 1.
- the fume is captured. 6 Captures scattered powder.
- the sucked atmospheric gas is circulated in the chamber 5, if a gas curtain 61 is provided at this time, a decrease in light transmittance due to the fumes 6 can be prevented extremely reliably and reasonably. Can do.
- the filter 71 may be any filter as long as it is effective for capturing fume 6 and powder, and may be a labyrinth type or a cyclone type. When the powder is a magnetic material, a magnet may be used.
- FIG. 10 shows the chamber 5 provided with an opening 52 that can be opened and closed by a lid 51 in the ceiling directly above the irradiation range of the light beam L. This opening 52 is provided for removing the manufactured object by the crane 8, but the inside of the chamber 5 is filled with an inactive gas during sintering. Keep the chamber 5 sealed when the lid 51 is closed using, for example.
- the opening / closing structure of the lid 51 is not limited to the rotary type with hinges shown in Fig. 10.
- a folding-type lid 51 can be used, or as shown in Fig. 11 B, sliding A lid 51 of the type may be used, and the opening / closing structure of the lid 51 is not limited to the illustrated example.
- the fume trapping means 7 when the fume trapping means 7 is also used, the fume trapping means 7 can also be moved away from the above position by sliding movement, etc., or the lid 51 can capture the fumes. Means 7 should be provided so as not to prevent removal of the shaped product through the opening 52.
- the atmosphere gas in the chamber 5 is sucked by the vacuum pump 8 1 as shown in FIG.
- the air supply to the chamber 5 by the compressor 8 2 and the atmosphere in the chamber 5 by the air supply and the replacement of the atmosphere gas and air by the particle counter 85 the amount of residual fumes in the chamber Measure the dust and the oxygen concentration in the chamber 5 with the oxygen concentration sensor 8 7, and open the lid 5 1 when the residual fume amount and oxygen concentration fall below the specified values, respectively. Take out the 3D shaped object from the And are preferred.
- 8 3 is a pump for feeding an inert gas (nitrogen gas) into the chamber 5
- C is a control device for controlling the operation of the manufacturing apparatus, and a particle counter 8 5 and an oxygen concentration sensor 8 7 are connected.
- the control device C opens and closes the valves 8 6 disposed between the pumps 8 1 and 8 3 and the compressor 8 2 and the chamber 5. Also controls the opening and closing of the lid 51.
- pilot holes 8 8 for the hanger bolts are formed in the modeled product during sintering. As shown in FIG.
- pilot hole 88 for the suspended port screw hole on the plate 29 interposed between the stage 20 and the three-dimensional shaped object.
- a plurality of pilot holes 8 8 are first formed at a predetermined position of the modeled object or plate 29, and after removing the powder when the modeling is completed, when tapping force is applied, for example, eyebolts are attached to the tapped holes. It can be lifted by a crane through a wire opening.
- the above embodiment is an example of a three-dimensional shaped article manufacturing apparatus that does not have a processing means for cutting the surface of a shaped article that has been shaped so far each time a predetermined number of sintered layers 11 are formed.
- the processing means can be constituted by, for example, a milling head attached to the base portion of the powder layer forming means 2 via an XY drive mechanism.
- the processing means may be activated.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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US10/546,454 US8062020B2 (en) | 2003-02-25 | 2004-02-25 | Three dimensional structure producing device and producing method |
DE112004000301T DE112004000301B4 (de) | 2003-02-25 | 2004-02-25 | Verfahren und Vorrichtung zur Herstellung eines dreidimensionalen Objekts |
US13/274,847 US8562897B2 (en) | 2003-02-25 | 2011-10-17 | Method of and apparatus for making a three-dimensional object |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003048264 | 2003-02-25 | ||
JP2003-048264 | 2003-02-25 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US10/546,454 A-371-Of-International US8062020B2 (en) | 2003-02-25 | 2004-02-25 | Three dimensional structure producing device and producing method |
US13/274,847 Continuation US8562897B2 (en) | 2003-02-25 | 2011-10-17 | Method of and apparatus for making a three-dimensional object |
Publications (1)
Publication Number | Publication Date |
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WO2004076102A1 true WO2004076102A1 (ja) | 2004-09-10 |
Family
ID=32923288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/002181 WO2004076102A1 (ja) | 2003-02-25 | 2004-02-25 | 三次元形状造形物の製造装置及び製造方法 |
Country Status (4)
Country | Link |
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US (2) | US8062020B2 (ja) |
JP (1) | JP4770862B2 (ja) |
DE (1) | DE112004000301B4 (ja) |
WO (1) | WO2004076102A1 (ja) |
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US7686995B2 (en) | 1996-12-20 | 2010-03-30 | Z Corporation | Three-dimensional printer |
US7824001B2 (en) | 2004-09-21 | 2010-11-02 | Z Corporation | Apparatus and methods for servicing 3D printers |
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JP3687677B1 (ja) * | 2004-10-26 | 2005-08-24 | 松下電工株式会社 | 光造形方法と光造形システム並びに光造形用プログラム |
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Also Published As
Publication number | Publication date |
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DE112004000301T5 (de) | 2006-01-26 |
JP2008255488A (ja) | 2008-10-23 |
US8562897B2 (en) | 2013-10-22 |
JP4770862B2 (ja) | 2011-09-14 |
US20120139166A1 (en) | 2012-06-07 |
DE112004000301B4 (de) | 2010-05-20 |
US20060192322A1 (en) | 2006-08-31 |
US8062020B2 (en) | 2011-11-22 |
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