JP2019183219A - 三次元造形物の製造方法 - Google Patents
三次元造形物の製造方法 Download PDFInfo
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- 238000000034 method Methods 0.000 claims description 23
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- 238000005245 sintering Methods 0.000 abstract description 19
- 238000000465 moulding Methods 0.000 abstract description 6
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- B22—CASTING; POWDER METALLURGY
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- 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
- B22F3/24—After-treatment of workpieces or articles
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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]
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- 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
- B22F12/30—Platforms or substrates
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- 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
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- 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
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- 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
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- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
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- B22F10/66—Treatment of workpieces or articles after build-up by mechanical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/70—Recycling
- B22F10/77—Recycling of gas
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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
- 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
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- B22F12/41—Radiation means characterised by the type, e.g. laser or electron beam
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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
- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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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
- 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
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/247—Removing material: carving, cleaning, grinding, hobbing, honing, lapping, polishing, milling, shaving, skiving, turning the surface
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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
- B29C64/188—Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control
- B29C64/194—Processes of additive manufacturing involving additional operations performed on the added layers, e.g. smoothing, grinding or thickness control during lay-up
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- 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
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
好ましくは、前記第3の工程後に前記焼結体の上面を基準面にして前記ベースプレートの裏面を平坦に削り出す第4の工程を含んでなる。
好ましくは、前記第3の工程において前記焼結体の上面を平坦に削り出した後、前記ベースプレートの上面に複数の支柱を取り付け、前記複数の支柱の上面をそれぞれ同じ高さの水平面上で水平に平坦に削り出してから前記複数の支柱によって前記ベースプレートを上下逆に支持する。
図1に示すように、本発明の実施形態に係る積層造形装置は、チャンバ1とレーザ光照射部13とを有する。
図5〜図16を用いて、上述した積層造形装置を用いた積層造形物の製造方法について説明する。なお、図5〜図16では、視認性を考慮し図1〜図4で示していた積層造形装置の構成要素を一部省略している。
なお、本願における技術的思想の適用範囲は、上記実施形態に限定されない。たとえば、上記実施形態にはおいては、ベースプレート33の中央を治具プレート7に対して2点で固定しているが、3点または4点などで固定してもよく、1点のみで固定してもよい。1点で固定する場合は、ベースプレート33が治具プレート7に対して回転しないように、側部に回転止めを設ける等の工夫があると好ましい。このように2点固定以外の場合においても、上記実施形態と同様の効果を奏することができる。
1a :ウィンドウ
1b :チャンバ供給口
1c :チャンバ排出口
1d :造形空間
1e :副供給口
1f :副排出口
3 :粉体層形成装置
4 :ベース台
5 :造形テーブル
7 :治具プレート
8 :材料粉体層
8a :材料粉体層
8b :材料粉体層
11 :リコータヘッド
11a :材料収容部
11b :材料供給部
11c :材料排出部
11fb :ブレード
11fs :リコータヘッド供給口
11rb :ブレード
11rs :リコータヘッド排出口
13 :レーザ光照射部
15 :不活性ガス供給装置
17 :ヒューム拡散装置
17a :筐体
17b :開口部
17c :拡散部材
17d :不活性ガス供給空間
17e :細孔
17f :清浄室
17g :ヒューム拡散装置供給口
19 :ヒュームコレクタ
21 :ダクトボックス
23 :ダクトボックス
26 :粉体保持壁
31 :造形テーブル駆動機構
33 :ベースプレート
33a :水平面
35 :固定ボルト
37 :固定ボルト
38 :支柱
38a :水平面
39 :裏面
41 :撮像部
42 :レーザ光源
43a :ガルバノミラー
43b :ガルバノミラー
44 :フォーカス制御ユニット
50 :切削装置
57 :加工ヘッド
60 :スピンドル
81 :焼結体
81a :焼結層
81b :焼結層
82 :上面
84 :加工面
好ましくは、前記第3の工程後に前記加工面を基準面にして前記ベースプレートの裏面を平坦に削り出す第4の工程を含んでなる。
好ましくは、前記第3の工程において前記焼結体の上面を平坦に削り出した後、前記ベースプレートの上面に複数の支柱を取り付け、前記複数の支柱の上面をそれぞれ同じ高さの水平面上で水平に平坦に削り出してから前記複数の支柱によって前記ベースプレートを上下逆に支持する。
Claims (4)
- 造形領域内に載置された治具プレートに対して、材料粉体を積層するためのベースプレートを、固定部材を用いて前記ベースプレートの位置ずれが生じない可能な限り前記ベースプレートの中心に近い位置において1以上の箇所で前記治具プレートにする第1の工程と、
前記ベースプレートの上において前記材料粉体を均一に平坦に撒布して所定の照射領域にレーザ光を照射し、当該材料粉体を焼結して焼結層を形成し前記焼結層を積層して焼結体を生成する第2の工程と、
前記焼結体の少なくとも上面を平坦に削り出す第3の工程と、を含んでなる三次元造形物の製造方法。 - 前記第3の工程において、前記造形領域内の前記治具プレート上に前記焼結体を含む前記ベースプレートを載置した状態で、前記焼結体の上面を平坦に削り出すことを特徴とする請求項1に記載の三次元造形物の製造方法。
- 前記第3の工程後に前記焼結体の上面を基準面にして前記ベースプレートの裏面を平坦に削り出す第4の工程を含んでなる請求項1に記載の三次元造形物の製造方法。
- 前記第3の工程において前記焼結体の上面を平坦に削り出した後、前記ベースプレートの上面に複数の支柱を取り付け、
前記複数の支柱の上面をそれぞれ同じ高さの水平面上で水平に平坦に削り出してから前記複数の支柱によって前記ベースプレートを上下逆に支持するようにした請求項3に記載の三次元造形物の製造方法。
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JP2018074120A JP6676688B2 (ja) | 2018-04-06 | 2018-04-06 | 三次元造形物の製造方法 |
US16/289,838 US11285541B2 (en) | 2018-04-06 | 2019-03-01 | Method for producing three-dimensional molded object |
DE102019107494.0A DE102019107494B4 (de) | 2018-04-06 | 2019-03-25 | Verfahren zur Herstellung eines dreidimensionalen geformten Objekts |
CN201910261677.3A CN110340355B (zh) | 2018-04-06 | 2019-04-02 | 三维造型物的制造方法 |
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JP2018074120A JP6676688B2 (ja) | 2018-04-06 | 2018-04-06 | 三次元造形物の製造方法 |
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EP3862114B8 (en) * | 2020-02-10 | 2024-09-11 | JEOL Ltd. | Three-dimensional powder bed fusion additive manufacturing apparatus |
US11529686B2 (en) * | 2020-02-10 | 2022-12-20 | Jeol Ltd. | Three-dimensional powder bed fusion additive manufacturing apparatus |
JP6993492B1 (ja) * | 2020-10-20 | 2022-01-13 | 株式会社ソディック | 積層造形装置 |
JP7041293B1 (ja) * | 2021-02-15 | 2022-03-23 | 株式会社ソディック | 三次元造形物の製造方法およびシート裁断装置の製造方法 |
CN112916880A (zh) * | 2021-04-01 | 2021-06-08 | 潍坊聚慧达数控科技有限公司 | 一种模拟极地条件深冷状态下的增材制造平台装备 |
US20230013204A1 (en) * | 2021-07-15 | 2023-01-19 | General Electric Company | Additive manufacturing system with partially flexible build platform |
US20230399977A1 (en) * | 2022-06-10 | 2023-12-14 | Raytheon Technologies Corporation | Build plate integrated into additive manufactured component |
CN117680715A (zh) * | 2024-01-31 | 2024-03-12 | 西安空天机电智能制造有限公司 | 激光选区熔化单刮刀双向铺粉装置、方法及增材制造设备 |
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US11285541B2 (en) | 2022-03-29 |
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