WO2016135974A1 - 粉末リコータ - Google Patents
粉末リコータ Download PDFInfo
- Publication number
- WO2016135974A1 WO2016135974A1 PCT/JP2015/055964 JP2015055964W WO2016135974A1 WO 2016135974 A1 WO2016135974 A1 WO 2016135974A1 JP 2015055964 W JP2015055964 W JP 2015055964W WO 2016135974 A1 WO2016135974 A1 WO 2016135974A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- powder
- recoater
- supply
- hopper
- supply means
- Prior art date
Links
- 239000000843 powder Substances 0.000 title claims abstract description 145
- 239000007921 spray Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 238000005507 spraying Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
Images
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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
- B05D1/12—Applying particulate materials
-
- 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
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B13/00—Feeding the unshaped material to moulds or apparatus for producing shaped articles; Discharging shaped articles from such moulds or apparatus
- B28B13/02—Feeding the unshaped material to moulds or apparatus for producing shaped articles
-
- 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
- B29C31/00—Handling, e.g. feeding of the material to be shaped, storage of plastics material before moulding; Automation, i.e. automated handling lines in plastics processing plants, e.g. using manipulators or robots
- B29C31/02—Dispensing from vessels, e.g. hoppers
-
- 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
-
- 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
- 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/255—Enclosures for the building material, e.g. powder containers
-
- 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
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/321—Feeding
- B29C64/329—Feeding using hoppers
-
- 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
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/343—Metering
-
- 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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
-
- 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
Definitions
- the present invention relates to a powder recoater.
- Patent Document 1 discloses a technique of dispersing powder by vibrating a recoater.
- Patent Document 2 discloses a technique in which a positive pressure is applied to the recoater when spraying powder, and a negative pressure is applied to the recoater when spraying of powder is stopped.
- powder can be sprayed only in one direction, for example, the forward direction of the powder recoater, and powder cannot be sprayed in both directions, that is, the forward direction and the backward direction of the powder recoater.
- An object of the present invention is to provide a technique for solving the above-described problems.
- the powder recoater comprises: A hopper for storing powder; A columnar powder supply means having a powder supply path having a side surface close to or in contact with the bottom surface of the hopper, Rotating means for rotating the powder supply means; With The central axis of the supply path is displaced in the radial direction of the powder supply means with respect to the central axis of the powder supply means.
- powder can be sprayed in both directions, that is, in the forward and backward directions of the powder recoater.
- a powder recoater 100 as a first embodiment of the present invention will be described with reference to FIG.
- the powder recoater 100 is a device that disperses the powder 111 on the modeling surface while moving left and right on the modeling surface.
- the powder recoater 100 includes a hopper 101, a powder supply unit 102, and a rotation unit 103.
- the hopper 101 stores the powder 111.
- the powder supply unit 102 has a side surface close to or in contact with the bottom surface of the hopper 101.
- the powder supply part 102 has the supply path 121 of the powder 111, and has a cylindrical shape.
- the central axis of the supply path 121 is displaced in the radial direction with respect to the central axis of the powder supply unit 102.
- the rotation unit 103 rotates the powder supply unit 102.
- the powder 111 can be dispersed in both directions, that is, the forward direction and the backward direction of the powder recoater.
- FIG. 2 is a view for explaining the configuration of the powder recoater 200 according to the present embodiment.
- FIG. 3 is a perspective view of the powder supply unit 202 of the powder recoater 200 according to the present embodiment.
- the powder recoater 200 is a device that disperses the powder 211 on the modeling surface while moving left and right on the modeling surface.
- the powder recoater 200 includes a hopper 201, a powder supply unit 202, a swinging unit 204, and a leveling unit 205. Furthermore, the powder recoater 200 includes a rotating unit such as a servo motor (not shown).
- the hopper 201 stores the powder 211 to be spread on the modeling surface.
- a predetermined amount of the powder 211 is appropriately supplied from a tank for storing the powder 211 (not shown) and the like before refilling.
- the powder 211 is fed from the top inlet of the hopper 201 and supplied to the powder supply unit 202 from the outlet provided on the bottom surface.
- the powder supply unit 202 is provided in the vicinity of the bottom surface of the hopper 201 or is provided so as to contact the bottom surface.
- the powder supply unit 202 is a cylindrical member, and a supply path 221 through which the powder 211 passes is provided on the side surface.
- the supply path 221 is provided such that the central axis of the supply path 221 is displaced in the radial direction of the powder supply unit 202 with respect to the central axis of the cylindrical powder supply unit 202.
- the central axis of the supply path 221 is eccentric with respect to the central axis of the powder supply unit 202.
- the supply path 221 is formed by providing a plurality of holes in a slit shape, but may be formed by a single hole (single slit). Further, a plurality of members provided with a single hole may be connected.
- the supply path 221 may have any shape as long as the powder 211 can pass therethrough, and may have various shapes such as a circle, an ellipse, a polygon, and a slit.
- a rotation mechanism such as a servo motor (not shown) is attached to the powder supply unit 202 and rotates in accordance with the operation of the servo motor.
- the material of the powder supply unit 202 may be any metal such as aluminum, iron, or copper, plastic, or resin.
- the powder 211 can be dispersed regardless of whether the powder recoater 200 is moving forward or backward. Even in the reverse direction, the powder 211 can be dispersed, so that the modeling time can be shortened.
- the swinging unit 204 swings the hopper 201 to give vibration to the hopper 201 and promote the supply of the powder 211 to the supply path 221 of the powder supply unit 202.
- the swing unit 204 includes a swing arm 241 and a rotating arm 242.
- the swing arm 241 is connected to the hopper 201.
- the rotating arm 242 is eccentric with respect to the center of rotation, and vibrations due to the rotation of the rotating arm 242 are transmitted to the swinging arm 241, thereby giving vibrations to the hopper 201 and promoting the falling of the powder 211.
- the leveling unit 205 levels the powder 211 sprayed on the modeling surface. Since the powder 211 sprayed from the powder supply unit 202 falls from the supply path 221 of the powder supply unit 202, the thickness is not uniform (constant) when sprayed on the modeling surface.
- the surface of the powder 211 is leveled by the soldering portion 205. For example, the powder 211 may be struck or leveled with a roller or the like. After the powder 211 is leveled, the powder 211 is irradiated with a laser or the like and cured to produce a three-dimensional structure.
- FIG. 4 is a diagram showing a state of spreading of the powder 211 by the powder recoater 200 according to the present embodiment.
- FIG. 4A is a diagram showing a state in which the powder 211 is dispersed in the forward direction
- FIG. 4B is a diagram showing a state in which the powder 211 is dispersed in the backward direction
- FIG. It is a figure which shows a mode that spraying of the powder 211 was stopped.
- the discharge port of the supply path 221 of the powder supply unit 202 is positioned on the right side. Like that.
- the powder 211 can be spread forward with respect to the traveling direction of the powder recoater 200.
- the powder supply unit 202 is rotated so that the discharge port of the hopper 201 and the supply path 221 are not directly connected. Good.
- the powder 211 can be supplied in any case where the powder recoater 200 moves forward or backward. Can be sprayed.
- the powder 211 can be dispersed not only when the powder recoater 200 is moving in the traveling direction but also when moving in the backward direction, the modeling speed is improved. Moreover, the powder recoater 200 of this embodiment can also be used for a three-dimensional modeling apparatus.
- FIG. 5 is a side view for explaining the configuration of the powder recoater 500 according to the present embodiment.
- the powder recoater 500 according to the present embodiment is different from the second embodiment in that it further includes a supply amount adjusting unit 501. Since other configurations and operations are the same as those of the second embodiment, the same configurations and operations are denoted by the same reference numerals, and detailed description thereof is omitted.
- the supply amount adjustment unit 501 is provided below the powder supply unit 202, and is provided between the powder supply unit 202 and the modeling surface. By adjusting the opening degree of the supply amount adjusting unit 501, the supply amount of the powder 211 spread on the modeling surface can be adjusted.
- the supply amount adjusting unit 501 plays a role like a throttle. If the opening degree is increased, the supply amount of the powder 211 can be increased, and if the opening degree is decreased, the supply amount of the powder 211 can be reduced. it can.
- the supply amount adjusting unit 501 is provided on both sides of the powder recoater 500 on the forward direction side (forward direction side) and the backward direction side (reverse direction side).
- the shape of the supply amount adjusting unit 501 may be a shutter-like structure or a plate-like structure, and may be any shape as long as it can close or open the dropping path of the powder 211.
- the powder guiding unit 502 is a mechanism for guiding the powder 211 such that the powder 211 supplied from the powder supplying unit 202 falls toward the supply amount adjusting unit 501. By providing the powder guiding unit 502, it is possible to prevent the powder 211 supplied from the powder supply unit 202 from flowing sideways.
- the supply amount adjusting unit 501 since the supply amount adjusting unit 501 is further provided, the amount of powder 211 applied can be adjusted more finely.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Ceramic Engineering (AREA)
- Robotics (AREA)
- Coating Apparatus (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
Description
粉末を貯留するホッパーと、
側面が前記ホッパーの底面に近接または当接し、前記粉末の供給路を有する円柱状の粉末供給手段と、
前記粉末供給手段を回動させる回動手段と、
を備え、
前記供給路の中心軸は、前記粉末供給手段の中心軸に対して、前記粉末供給手段の径方向に変位していることを特徴とする。
本発明の第1実施形態としての粉末リコータ100について、図1を用いて説明する。粉末リコータ100は、造形面上を左右に移動しながら造形面に粉末111を散布する装置である。
次に本発明の第2実施形態に係る粉末リコータ200について、図2~図4を用いて説明する。図2は、本実施形態に係る粉末リコータ200の構成を説明するための図である。図3は、本実施形態に係る粉末リコータ200の粉末供給部202の斜視図である。
次に本発明の第3実施形態に係る粉末リコータについて、図5を用いて説明する。図5は、本実施形態に係る粉末リコータ500の構成を説明するための側面図である。本実施形態に係る粉末リコータ500は、上記第2実施形態と比べると、供給量調整部501をさらに有する点で異なる。その他の構成および動作は、第2実施形態と同様であるため、同じ構成および動作については同じ符号を付してその詳しい説明を省略する。
以上、実施形態を参照して本願発明を説明したが、本願発明は上記実施形態に限定されるものではない。本願発明の構成や詳細には、本願発明のスコープ内で当業者が理解し得る様々な変更をすることができる。また、それぞれの実施形態に含まれる別々の特徴を如何様に組み合わせたシステムまたは装置も、本発明の範疇に含まれる。
Claims (6)
- 粉末を貯留するホッパーと、
側面が前記ホッパーの底面に近接または当接し、前記粉末の供給路を有する円柱状の粉末供給手段と、
前記粉末供給手段を回動させる回動手段と、
を備え、
前記供給路の中心軸は、前記粉末供給手段の中心軸に対して、前記粉末供給手段の径方向に変位していることを特徴とする粉末リコータ。 - 前記粉末供給手段の下方に、前記粉末供給手段から供給される粉末の供給量を調整する供給量調整手段をさらに備えることを特徴とする請求項1に記載の粉末リコータ。
- 散布された粉末を均す均し手段をさらに備え、
前記均し手段は、前記粉末供給手段の下方に設けられていることを特徴とする請求項1または2に記載の粉末リコータ。 - 前記ホッパーを振動させる振動手段をさらに備えることを特徴とする請求項1乃至3のいずれか1項に記載の粉末リコータ。
- 前記回動手段は、サーボモータであることを特徴とする請求項1乃至4のいずれか1項に記載の粉末リコータ。
- 請求項1に記載の粉末リコータを用いた3次元造形装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2015/055964 WO2016135974A1 (ja) | 2015-02-27 | 2015-02-27 | 粉末リコータ |
US14/760,134 US9855704B2 (en) | 2015-02-27 | 2015-02-27 | Powder recoater |
EP15762908.0A EP3085517B1 (en) | 2015-02-27 | 2015-02-27 | Powder recoater |
JP2016510539A JP6077715B2 (ja) | 2015-02-27 | 2015-02-27 | 粉末リコータ |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2015/055964 WO2016135974A1 (ja) | 2015-02-27 | 2015-02-27 | 粉末リコータ |
Publications (1)
Publication Number | Publication Date |
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WO2016135974A1 true WO2016135974A1 (ja) | 2016-09-01 |
Family
ID=56787963
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2015/055964 WO2016135974A1 (ja) | 2015-02-27 | 2015-02-27 | 粉末リコータ |
Country Status (4)
Country | Link |
---|---|
US (1) | US9855704B2 (ja) |
EP (1) | EP3085517B1 (ja) |
JP (1) | JP6077715B2 (ja) |
WO (1) | WO2016135974A1 (ja) |
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KR20190036821A (ko) * | 2017-09-28 | 2019-04-05 | (주)센트롤 | 삼차원 프린터 |
WO2019187110A1 (ja) | 2018-03-30 | 2019-10-03 | シーメット株式会社 | 材料供給装置、材料供給装置の制御方法および材料供給装置の制御プログラム |
JP2020532646A (ja) * | 2017-09-01 | 2020-11-12 | エクスワン ゲーエムベーハー | 3dプリンタ用のコータアセンブリ |
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Also Published As
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EP3085517B1 (en) | 2019-05-22 |
EP3085517A4 (en) | 2017-08-30 |
US20160311164A1 (en) | 2016-10-27 |
JPWO2016135974A1 (ja) | 2017-04-27 |
US9855704B2 (en) | 2018-01-02 |
EP3085517A1 (en) | 2016-10-26 |
JP6077715B2 (ja) | 2017-02-08 |
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