JP2008291317A - Method for producing three-dimensionally shaped object - Google Patents

Method for producing three-dimensionally shaped object Download PDF

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JP2008291317A
JP2008291317A JP2007138093A JP2007138093A JP2008291317A JP 2008291317 A JP2008291317 A JP 2008291317A JP 2007138093 A JP2007138093 A JP 2007138093A JP 2007138093 A JP2007138093 A JP 2007138093A JP 2008291317 A JP2008291317 A JP 2008291317A
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powder
layer
sintered
sintered layer
crack
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JP4867790B2 (en
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Isao Fuwa
勲 不破
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Panasonic Electric Works Co Ltd
パナソニック電工株式会社
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing a three-dimensionally shaped object designed in such a manner that gas is effectively removed without requiring complicated designing and post-working. <P>SOLUTION: This invention relates to the method where a process in which a prescribed part in the layer 10 of a powder material 13 is irradiated with a light beam L, and the powder in the part is sintered, so as to form a sintered layer 11; the surface of the sintered layer 11 is coated with the layer 10 of a new material; a prescribed part is irradiated with a light beam L, and the powder in the part is sintered, so as to form a new sintered layer 11 integrated with the sintered layer 11 at the lower layer is repeated, thus a three-dimensional shaped article in which a plurality of the sintered layers 11 are stacked and integrated is produced. The method includes a stage where, in the sintered layers 11, a crack 17 communicating through each sintered layer 11 is generated, and the crack 17 is selectively formed by feeding additional powder 14 generating the crack 17 to the part at which the crack is generated in each sintered layer 11 of the layer 10 in each powder material 13 and irradiating the same with a light beam L. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a method of manufacturing a three-dimensional shaped object in which a plurality of sintered layers are laminated and integrated by repeating a step of forming a sintered layer by irradiating a layer of powder material with a light beam.

  A predetermined layer of the powder material layer is irradiated with a light beam and sintered to form a sintered layer, and a new powder material layer is coated on the sintered layer and the new powder material layer is formed. By irradiating a predetermined beam of a light beam and sintering, a sintered layer integrated with the lower sintered layer is formed, and by repeating this, a plurality of sintered layers are laminated and integrated. There is a method for producing a three-dimensional shaped object (for example, see Patent Document 1).

FIG. 18 shows an example. First, on the modeling base 122 on the upper surface of the modeling table 120 that can be moved up and down, from the powder material 113 on the material table 124 that can be moved up and down adjacent to the modeling table 120, the squeezing blade 121 is used. A layer (powder layer) 110a of the powder material 113 having a thickness Δt 2 is formed. The modeling table 120 moves up and down along the side surface of the cylinder 115, and the blade 121 reciprocates in the horizontal direction at the same level as the upper surface of the cylinder 115. Therefore, the powder layer 110 a can be formed on the modeling table 120 with a thickness corresponding to the step formed between the upper surface of the modeling table 120 and the upper surface of the cylinder 115. Thereafter, the predetermined portion of the powder layer 110a is irradiated with the light beam L condensed by the condenser lens, and the portion of the powder layer 110a is sintered to form the sintered layer 111a. Next, the modeling table 120 is slightly lowered, and the powder layer 110b having a predetermined thickness is formed on the sintered layer 111a from the powder material 113 on the material table 124 using the blade 121 in the same manner as described above. Form. Then, in the same manner as described above, a predetermined portion of the powder layer 110b is irradiated with the light beam L to sinter the portion of the powder layer 110b, and the sintered layer 111a is integrated with the sintered layer 111a. A sintered layer 111b is formed. By repeating the above operation, a three-dimensional shaped object in which a predetermined number of sintered layers 111a to 111f are laminated and integrated can be manufactured. FIG. 19 is a schematic perspective view of a three-dimensional shaped object.

Here, when the product 100 as shown in FIG. 20A is manufactured, the product 100 is horizontally aligned at a predetermined interval Δt 3 as shown in FIG. 20B based on the three-dimensional CAD data of the product 100. The cross-sectional data of the slice planes of the layers 100a to 100f when sliced into two layers are obtained, and the scanning path of the light beam L applied to each powder layer is determined based on the slice cross-sectional data, and corresponds to the layers 100a to 100f. By forming the sintered layers 111a to 111f with a horizontal cross-sectional shape, the same three-dimensional shaped object as the product 100 can be manufactured. Then, by adopting a method in which the sintered layers 111a to 111f are sequentially formed and stacked in this way, a three-dimensional shaped object having a desired shape can be obtained quickly without using a complicated mechanism device. Can do.

  By the way, this three-dimensional shaped object is used as a plastic mold. The plastic mold needs to be designed so that the gas in the mold and the gas generated from the molten resin escape effectively when the resin is rapidly filled in the mold. If not designed in this way, discoloration and gas burn will occur on the surface of the molded product and the appearance will be impaired, or the flow state of the resin in the mold will be different from the design, so the dimensional accuracy of the molded product will be reduced There is a fear.

Therefore, conventionally, a porous material is embedded in a location where gas is to be removed, a gap formed by a split mold structure is used, or a gap formed in the insertion hole by using a knockout pin insertion hole is used. In some cases, the gas was extracted (for example, see Patent Document 2).
Japanese Patent No. 2620353 JP 2003-1715 A

  However, when the gas is extracted by the method as described above, there is a problem that complicated design and subsequent processing are required.

  The present invention has been made in view of the above-described problems, and provides a method for producing a three-dimensional shaped object designed so that gas can be effectively removed without requiring complicated design and subsequent processing. For the purpose.

  In order to solve the above-mentioned problem, the manufacturing method of the three-dimensional shaped object according to claim 1 sinters by irradiating a predetermined portion of the layer of the powder material with a light beam to sinter the powder at the corresponding portion. A layer is formed, and a layer of a new powder material is coated on the sintered layer, and a predetermined portion of the powder is irradiated with a light beam to sinter the powder at the corresponding location, thereby integrating with the lower sintered layer. In the method of manufacturing a three-dimensional shaped object in which a plurality of sintered layers are laminated and integrated by repeatedly forming a new sintered layer, the method communicates each sintered layer with the sintered layer. Including a step of generating a crack, and the crack is selectively formed by supplying an additive powder for generating a crack to a portion where the crack is generated in the sintered layer of the powder material layer and irradiating with a light beam. It is characterized by that.

  The invention according to claim 2 is the method for producing a three-dimensional shaped article according to claim 1, wherein the powder material is iron-based powder, at least one of nickel or nickel-based alloy powder, copper or copper-based A mixed powder containing at least one of alloy powders, the blending ratio being 60 to 90% by weight of iron-based powder, 5 to 35% by weight of nickel or nickel-based alloy powder, copper or copper-based alloy powder The additive powder that causes at least one of 5 to 15% by weight and generates cracks is a powder containing at least one selected from sulfur, silicon, and phosphorus, and the supply amount thereof is an additive that generates cracks with the powder material. It is characterized by 0.1 to 2.0% by weight of the total weight of the powder.

  Invention of Claim 3 collect | recovers the addition powder which generate | occur | produces the crack which was not sintered after forming a sintered layer in the manufacturing method of the three-dimensional shape molded article of the said Claim 1 or 2 It is characterized by that.

  The invention according to claim 4 is the method for producing a three-dimensional shaped article according to any one of claims 1 to 3, wherein after the sintered layer is formed, the surface of the shaped article produced so far A step of cutting and removing at least one of the part and the unnecessary part.

  The invention according to claim 5 is the method for producing a three-dimensional shaped article according to any one of claims 1 to 4, wherein the three-dimensional shaped article is an injection mold. To do.

  According to the present invention, a crack can be generated at a desired location of a three-dimensional shaped object. In particular, when a three-dimensional shaped object is applied to a mold, the crack serves as a vent hole, and gas can be effectively removed. As a result, the appearance of the molded product is not impaired, and the dimensional accuracy of the molded product can be improved.

(Embodiment 1)
FIG. 1 shows a three-dimensional shaped article manufacturing apparatus (hereinafter simply referred to as “manufacturing apparatus”) according to the first embodiment. In the following description, the present invention may be described with specific examples, but the present invention is not limited to the following specific examples.

  The manufacturing apparatus uses the squeezing blade 21 to smooth the powder material 13 supplied on the modeling table 20 that moves up and down in the space surrounded by the cylinder 15, so that the powder has a predetermined thickness Δt 1 (see FIG. 2). A powder layer forming means 2 for forming a layer (powder layer) 10 of the material 13 and an XY drive mechanism (preferably a linear motion linear motor driven one is preferred in terms of speeding up) 40 at the base of the powder layer forming means 2 The powder layer 10 includes an additive powder supply unit 23 that supplies the additive powder 14 (see FIG. 2) that generates the crack 17 at a location where the crack 17 (see FIG. 2) is generated in the sintered layer 11 to be described later. The light beam (laser) L provided from the additive powder supply means 3 and the powder layer forming means 2 and output from the laser oscillator 30 is passed through a scanning optical system such as a galvano mirror 31. The sintered layer 11 containing the cracks 17 is formed by irradiating the predetermined portion of the powder layer 10 and the additive powder 14 that generates the crack 17 to sinter the additive powder 14 that generates the predetermined portion and crack 17 of the powder layer 10. And a sintered layer forming means 4 for forming a basic structure.

  As shown in FIG. 2, the three-dimensional shaped object manufactured by this is used for forming the upper surface of the lifting table 20 which is an adjusting means for adjusting the relative distance between the sintered layer forming means 4 and the sintered layer 11. The powder material 13 is supplied to the surface of the base 22 and is smoothed by the blade 21 to form the first powder layer 10, and the crack 17 is generated at the place where the crack 17 is generated in the sintered layer 11 of the powder layer 10. After the additive powder 14 is supplied, the additive powder 14 that generates predetermined portions and cracks 17 in the powder layer 10 is irradiated with the light beam L to form the sintered layer 11 integrated with the base 22.

  Thereafter, the lifting table 20 is slightly lowered, the powder material 13 is supplied again and the blade 21 is used to form the second powder layer 10, and cracks 17 are generated in the sintered layer 11 of the powder layer 10. After supplying the additive powder 14 for generating cracks 17 at the locations, the predetermined powder in the powder layer 10 and the additive powder 14 for generating cracks 17 are irradiated with the light beam L to be integrated with the lower sintered layer 11. A binder layer 11 is formed.

  Here, the crack 17 generated in each sintered layer is generated so as to communicate with each other.

  By repeating the above steps, a target three-dimensional shaped object is manufactured.

  Here, the powder material 13 is a mixed powder containing iron-based powder, at least one of nickel or nickel-based alloy powder, and at least one of copper or copper-based alloy powder. 60 to 90 weight percent, at least one of nickel or nickel-based alloy powder is 5 to 35 weight percent, and at least one of copper or copper-based alloy powder is 5 to 15 weight percent. Specifically, the powder material 13 is a mixed powder of chromium molybdenum steel (SCM440), nickel (Ni), copper manganese alloy (CuMnNi), and graphite (C) having an average particle diameter of 30 μm, and the blending ratio thereof is (70 wt% SCM440-20 wt% Ni-9 wt% CuMnNi) +0.3 wt% C. The mixed powder has an average particle diameter of 1 to 100 μm and a substantially spherical shape. The thickness Δt1 of the powder layer 10 is 0.05 mm.

  The additive powder 14 that generates the crack 17 is a powder containing at least one selected from sulfur, silicon, and phosphorus, and the supply amount thereof is 0.1% of the total weight of the powder material 13 and the additive powder that generates the crack 17. -2.0% by weight. If it is less than 0.1% by weight, when the three-dimensional shaped article 1 is used in a mold, it is not possible to generate sufficient cracks 17 for degassing, and if it is more than 2.0% by weight, The crack 17 becomes too large and the strength of the three-dimensional shaped object is not sufficient.

  As the light beam L, a carbon dioxide laser is used. The irradiation path of the light beam L is created in advance from three-dimensional CAD data. That is, the contour shape data of each cross section obtained by slicing STL data generated from a three-dimensional CAD model at an equal pitch (here, 0.05 mm) is used.

  The cross-sectional structure of the three-dimensional shaped object manufactured without supplying the additive powder 14 that generates the crack 17 in FIG. 3A is 0.3 as the additive powder 14 that generates the crack 17 in FIG. Produced by supplying 1.0% by weight of phosphorus powder as an additive powder 14 for generating cracks 17 in FIG. The cross-sectional structure | tissue of the made three-dimensional molded object is shown. In FIG. 3B and FIG. 3C, it was found that when a three-dimensional shaped object was used as a mold, a crack 17 that can effectively vent gas was generated.

Therefore, the crack 17 can be generated at a desired location of the three-dimensional shaped object. In particular, the three-dimensional shaped object can be used as an injection mold, and when applied to an injection mold, the crack 17 serves as a vent hole and effectively vents the gas from the crack 17. be able to. As a result, the appearance of the molded product is not impaired, and the dimensional accuracy of the molded product can be improved.
(Embodiment 2)
FIG. 4 shows a manufacturing apparatus according to the second embodiment. This embodiment is different from the first embodiment in that a collecting means 5 for separately collecting the powder material 13 that has not been sintered and the additive powder 14 that generates the crack 17 is provided, and the other points are the same.

  Here, the recovery means 5 includes an air pump 50 and a suction nozzle 51 connected to the air pump 50, and the suction nozzle 51 is provided in the XY drive mechanism 40 because it needs to move freely. As shown in FIG. 5, after manufacturing the three-dimensional shaped object, the powder material 13 and the additive powder 14 that generates the crack 17 may remain as they are without being sintered. The powder material 13 and the additive powder 14 that generates cracks 17 are collected separately. Specifically, first, the powder powder 13 is sucked and collected after the additive powder 14 that generates the crack 17 is partially sucked and collected.

Accordingly, the powder material 13 and the additive powder 14 that generates the cracks 17 can be reused.
(Embodiment 3)
FIG. 6 shows a manufacturing apparatus according to the third embodiment. In the first embodiment, at least one of a surface portion or an unnecessary portion in a modeled object that has been manufactured so far by a cutting tool 41 provided with a ball end mill and provided in a base portion of the powder layer forming means 2 via an XY drive mechanism 40. This is different in that a removing means 6 is provided to remove, and the other points are the same.

  In this embodiment, it is preferable to irradiate the light beam L so that at least the outermost surface of the three-dimensional shaped object can be sintered so as to have a high density (porosity of 5% or less). This is because even if the surface removal described later by the removing means 6 is performed, if the exposed portion is porous, the surface after the removal processing is also in a porous state. For this purpose, as shown in FIG. 7, the shape model data is divided into the surface layer portion S and the inner portion N in advance, and the inner N portion is sintered under a porous condition. Then, the light beam L is irradiated under the condition of high density. FIG. 8 shows the low-density surface layer 16 made of the high-density portion 12 and the above-mentioned adhered powder.

  Then, the powder layer 10 is formed, and the formation of the sintered layer 11 is repeated by irradiating the light beam L. The total thickness of the sintered layer 11 is, for example, less than the effective blade length of the cutting tool 41. When the predetermined value is reached, the removing means 6 is once operated to cut the surface of the shaped object that has been shaped so far. For example, when the cutting tool 41 having a ball end mill with a tool diameter of 0.6 mm and an effective blade length of 1.0 mm is used, if the thickness Δt1 of the powder layer 10 is 0.05 mm, 10 layers are sintered. When the layer 11 is formed, that is, when the shaping of 0.5 mm is performed, the removing means 6 is operated.

  As shown in FIG. 8, the removal means 6 performs cutting to remove the low-density surface layer 16 from the powder adhering to the surface of the modeled object, and at the same time, the high-density portion 12 is cut into the surface of the modeled object to increase the density. The part 12 is exposed entirely. Thereby, the surface roughness of the modeled object surface can be increased. Therefore, the sintered layer 11 is made slightly larger than the desired shape M.

  The cutting path by the removing means 6 is created in advance from three-dimensional CAD data in the same manner as the irradiation path of the light beam L. At this time, the machining path is determined by applying contour processing, but the Z-direction pitch does not need to stick to the lamination pitch at the time of sintering, and in the case of a gentle inclination, by interpolating with a finer Z-direction pitch, Keep a smooth surface. When cutting is performed with the cutting tool 41 having a tool diameter of 1 mm, the cutting depth is 0.1 to 0.5 mm, the feed rate is 5 m / min to 50 m / min, and the tool rotation speed is 20,000 rpm to 100,000 rpm. Is preferred.

  In the removal by cutting, as shown in FIG. 9, the portion immediately before the cutting is softened by irradiating and heating the light beam L having a reduced energy density, and the softened portion is removed. When the cutting tool 41 performs cutting, the cutting resistance is reduced, so that the cutting time can be shortened and the life of the cutting tool 41 can be extended.

  In addition, as shown in FIG. 10, it is also preferable to increase the surface density by irradiating the light beam L again to the part immediately after the cutting and removing it, and then performing the heat curing or heat treatment.

  By the way, when removing the surface of the object and unnecessary parts by the removing means 6, unsintered powder and cutting waste by the removing means 6 interfere with the removing operation, and when forming the next powder layer 10, the blade 21 is cut by the blade 21. The flat powder layer 10 may not be formed due to scraps, or the blade 21 may stop due to the cutting scraps sandwiched between the blade 21 and the modeled object. For this purpose, as shown in FIG. 11 and FIG. 12 (a) or FIG. 12 (b), it is preferable to provide, for example, an exclusion means 7 comprising an air pump 60 and a suction nozzle 61. Here, when the suction nozzle 61 connected to the air pump 60 is disposed adjacent to the cutting tool 41 and the additive powder 14 and the cutting waste generating the unsintered powder material 13 and the crack 17 are sucked simultaneously with the cutting. Good. In the case shown in FIG. 12B in which the cutting tool 41 is surrounded by the suction nozzle 51, a spindle head can be preferably used for the cutting tool 41.

  As shown in FIG. 13, before cutting, only the unsintered powder material 13 and the additive powder 14 that generates the cracks 17 may be collected by suction, and the cutting waste may be removed by suction simultaneously with the cutting. At this time, as described in the second embodiment, it is preferable that the unsintered powder material 13 and the additive powder 14 that generates the crack 17 are separately sucked and collected. Since no cutting waste is mixed in the unsintered powder material 13 and the additive powder 14 that generates the crack 17, the reuse of the unsintered powder material 13 and the additive powder 14 that generates the crack 17 is easy. Become.

  By the way, when the unsintered powder material 13 has been sucked and collected, when the powder layer 10 is further laminated after the removal step, a large amount of the powder material 13 is required, and each time the removal step is repeated a plurality of times, The powder material 13 must be filled in the entire space where the unsintered powder material 13 is lost, resulting in a large time loss. For this reason, in the space where the unsintered powder material 13 disappears, as shown in FIG. 14, a solidified portion 18 is formed by pouring and solidifying resin or brazing material, and the next powder layer 10 is the It may be formed on the upper surface of the upper sintered layer 11 and the solidified portion 18. The amount of the powder material 13 to be used can be reduced.

  Note that the suction nozzle 61 in the exclusion means 7 that sucks and collects the unsintered powder material 13 prior to the removing step is provided in the drive portion of the blade 21 in the powder layer forming means 2 as shown in FIG. When attached, it is possible to suck and collect the unsintered powder material 13 in the entire area and to eliminate the need for a dedicated drive mechanism for the suction nozzle 61, so that the apparatus configuration can be simplified.

  Further, as shown in FIG. 16, when the suction nozzle 61 is attached to the dedicated XY drive mechanism 55 or the XY drive mechanism 40 in the removing means 6, the suction nozzle 61 is moved along the cross-sectional contour shape of the modeled object. Can be moved.

  The unsintered powder material 13 is not sucked and collected before the removal step, but is unsintered powder by, for example, spraying liquid nitrogen or the like (if necessary, simultaneously containing gas containing moisture). The material 13 may be frozen and solidified, or a resin or a brazing material may be poured and solidified, and the removing means 6 may be operated in this state. Since the cutting waste does not enter the unsintered powder, only the cutting waste can be easily sucked out without requiring refilling of the powder material 13 or the like.

  FIG. 17 shows a measuring means 8 for measuring the shape and position of a shaped article immediately after sintering or immediately after removal processing. Light beam irradiation accuracy and removal processing accuracy can be measured on-machine. The measurement result (positional coordinate data) and CAD data are compared by feeding back the measurement results. In addition to being able to calculate, the next light beam irradiation path data is corrected or the next removal processing path data is corrected based on the comparison result, thereby enabling more accurate modeling.

  When the measuring means 8 is, for example, a piezoelectric contact sensor, if the measuring means 8 is provided in the XY drive mechanism 40 in the removing means 6, the measurement can be performed without requiring a dedicated drive mechanism for the measuring means 8. It can be carried out.

  Further, as the measuring means 8, an imaging means such as a CCD camera may be used. The imaging means is moved so that the point to be measured is the center of the image, and the amount of deviation is measured from the number of pixels that are shifted between the center of the image and the point to be measured in the modeled object.

  Note that the removed portion is not limited to the surface portion of the modeled object. For the sake of modeling, if an unnecessary part must be modeled, the unnecessary part can be removed.

  Therefore, it is possible to manufacture a three-dimensional shaped article with a good surface appearance.

  Note that items described in each embodiment can be appropriately selected and combined.

2 is a schematic perspective view according to an example of Embodiment 1. FIG. It is operation | movement explanatory drawing same as the above. It is a cross-sectional organization chart of a three-dimensional shape modeling thing. 10 is a schematic perspective view according to an example of Embodiment 2. FIG. It is operation | movement explanatory drawing same as the above. 10 is a schematic perspective view according to an example of Embodiment 3. FIG. It is explanatory drawing regarding the surface high-density part same as the above. It is sectional drawing which shows the removal process same as the above. It is a perspective view which shows operation | movement of the other example same as the above. It is a perspective view which shows operation | movement of the further another example same as the above. It is a schematic perspective view of the other example same as the above. It is a schematic sectional drawing which shows an example of an exclusion means. It is a schematic sectional drawing which shows operation | movement of the other example of an exclusion means. It is a schematic sectional drawing which shows the process after exclusion. It is a schematic sectional drawing which shows the other example of an exclusion means. It is a schematic perspective view which shows the further another example of an exclusion means. It is a schematic perspective view of the example provided with the measurement means. It is explanatory drawing of the conventional method which manufactures a three-dimensional shape molded article. It is a perspective view of a three-dimensional shaped object. It is explanatory drawing of the conventional method which manufactures a three-dimensional shape molded article.

Explanation of symbols

3 Additive powder supply means 10 Powder layer 11 Sintered layer 13 Powder material 14 Additive powder 17 Crack 23 Additive powder supply part L Light beam

Claims (5)

  1. A predetermined part of the powder material layer is irradiated with a light beam to sinter the powder at the corresponding part to form a sintered layer, and a new powder material layer is coated on the sintered layer to form a predetermined part. A plurality of sintered layers were laminated and integrated by repeating the formation of a new sintered layer integrated with the lower sintered layer by irradiating the light beam to sinter the powder at the corresponding location. In the method of manufacturing a three-dimensional shaped object,
    The method includes a step of generating cracks communicating with each sintered layer in the sintered layer,
    A crack is selectively formed by supplying an additive powder that generates a crack to a portion where a crack is generated in a sintered layer of a powder material layer and irradiating a light beam. A method of manufacturing a shaped object.
  2. The powder material is a mixed powder containing iron-based powder, at least one of nickel or nickel-based alloy powder, and at least one of copper or copper-based alloy powder, and the blending ratio is 60 to 90 weight for iron-based powder. %, At least one of nickel or nickel-based alloy powder is 5 to 35% by weight, at least one of copper or copper-based alloy powder is 5 to 15% by weight,
    The additive powder that generates cracks is a powder containing at least one selected from sulfur, silicon, and phosphorus, and the supply amount thereof is 0.1 to 2.0 of the total weight of the powder material and the additive powder that generates cracks. It is weight%, The manufacturing method of the three-dimensional shape molded article of Claim 1 characterized by the above-mentioned.
  3.   The method for producing a three-dimensional shaped article according to claim 1 or 2, wherein after the sintered layer is formed, the additive powder that generates cracks that have not been sintered is collected.
  4.   The method according to any one of claims 1 to 3, further comprising a step of cutting and removing at least one of a surface portion or an unnecessary portion in the molded article manufactured so far after the sintered layer is formed. A manufacturing method of a three-dimensional shaped object.
  5.   The method for producing a three-dimensional shaped article according to any one of claims 1 to 4, wherein the three-dimensional shaped article is an injection mold.
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5599921B1 (en) * 2013-07-10 2014-10-01 パナソニック株式会社 Manufacturing method of three-dimensional shaped object
WO2015005497A1 (en) * 2013-07-10 2015-01-15 パナソニックIpマネジメント株式会社 Production method and production device for three-dimensionally shaped molded object
WO2015151611A1 (en) * 2014-03-31 2015-10-08 株式会社 東芝 Layered-shaped-article manufacturing device, manufacturing method, and liquid feedstock
JPWO2016042810A1 (en) * 2014-09-19 2017-04-27 株式会社東芝 Additive manufacturing apparatus and additive manufacturing method
CN106735192A (en) * 2016-11-28 2017-05-31 中国石油集团川庆钻探工程有限公司 PDC drill bit mould 3D printing preparation method
WO2017208504A1 (en) * 2016-05-30 2017-12-07 パナソニックIpマネジメント株式会社 Method for producing three-dimensional shaped article

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001152204A (en) * 1999-11-25 2001-06-05 Matsushita Electric Works Ltd Powder material for manufacturing three-dimensional molding, manufacturing method of three-dimensional molding, and three-dimensional molding
JP2002115004A (en) * 2000-10-05 2002-04-19 Matsushita Electric Works Ltd Method and equipment for manufacturing article with three-dimensional shape
JP2003001715A (en) * 2001-06-26 2003-01-08 Matsushita Electric Works Ltd Method and apparatus for producing three-dimensional shaped article
JP2004122490A (en) * 2002-09-30 2004-04-22 Matsushita Electric Works Ltd Method for manufacturing three-dimensionally shaped article
JP2007070655A (en) * 2005-09-05 2007-03-22 Matsushita Electric Ind Co Ltd Three-dimensional structure and production method therefor

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001152204A (en) * 1999-11-25 2001-06-05 Matsushita Electric Works Ltd Powder material for manufacturing three-dimensional molding, manufacturing method of three-dimensional molding, and three-dimensional molding
JP2002115004A (en) * 2000-10-05 2002-04-19 Matsushita Electric Works Ltd Method and equipment for manufacturing article with three-dimensional shape
JP2003001715A (en) * 2001-06-26 2003-01-08 Matsushita Electric Works Ltd Method and apparatus for producing three-dimensional shaped article
JP2004122490A (en) * 2002-09-30 2004-04-22 Matsushita Electric Works Ltd Method for manufacturing three-dimensionally shaped article
JP2007070655A (en) * 2005-09-05 2007-03-22 Matsushita Electric Ind Co Ltd Three-dimensional structure and production method therefor

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5599921B1 (en) * 2013-07-10 2014-10-01 パナソニック株式会社 Manufacturing method of three-dimensional shaped object
WO2015005497A1 (en) * 2013-07-10 2015-01-15 パナソニックIpマネジメント株式会社 Production method and production device for three-dimensionally shaped molded object
WO2015005496A1 (en) * 2013-07-10 2015-01-15 パナソニックIpマネジメント株式会社 Production method for three-dimensionally shaped molded object
JP2015017295A (en) * 2013-07-10 2015-01-29 パナソニック株式会社 Method for producing three-dimensional shape formed article and manufacturing apparatus therefor
TWI549807B (en) * 2013-07-10 2016-09-21 松下知識產權經營股份有限公司 Method for manufacturing three-dimensional modeled object
US9586285B2 (en) 2013-07-10 2017-03-07 Panasonic Intellectual Property Management Co., Ltd. Method and apparatus for manufacturing three-dimensional shaped object
US9604282B2 (en) 2013-07-10 2017-03-28 Panasonic Intellectual Property Management Co., Ltd. Method for manufacturing three-dimensional shaped object
WO2015151611A1 (en) * 2014-03-31 2015-10-08 株式会社 東芝 Layered-shaped-article manufacturing device, manufacturing method, and liquid feedstock
JPWO2016042810A1 (en) * 2014-09-19 2017-04-27 株式会社東芝 Additive manufacturing apparatus and additive manufacturing method
WO2017208504A1 (en) * 2016-05-30 2017-12-07 パナソニックIpマネジメント株式会社 Method for producing three-dimensional shaped article
CN106735192A (en) * 2016-11-28 2017-05-31 中国石油集团川庆钻探工程有限公司 PDC drill bit mould 3D printing preparation method

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