JP7065351B2 - 三次元形状造形物の製造方法 - Google Patents
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/007—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of moulds
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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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- 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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- 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
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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
- B22F3/10—Sintering only
- B22F3/105—Sintering only by using electric current other than for infrared radiant energy, laser radiation or plasma ; by ultrasonic bonding
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- B—PERFORMING OPERATIONS; TRANSPORTING
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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
- B22F3/12—Both compacting and sintering
- B22F3/16—Both compacting and sintering in successive or repeated steps
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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
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- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B22F10/36—Process control of energy beam parameters
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/50—Treatment of workpieces or articles during build-up, e.g. treatments applied to fused layers during build-up
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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
- B22F12/40—Radiation means
- B22F12/41—Radiation means characterised by the type, e.g. laser or electron beam
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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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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- Y02P10/25—Process efficiency
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- Mechanical Engineering (AREA)
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- Analytical Chemistry (AREA)
- Automation & Control Theory (AREA)
- Plasma & Fusion (AREA)
- Powder Metallurgy (AREA)
Description
(i)粉末層の所定箇所に光ビームを照射し、かかる所定箇所の粉末を焼結又は溶融固化させて固化層を形成する工程。
(ii)得られた固化層の上に新たな粉末層を形成し、同様に光ビームを照射して更なる固化層を形成する工程。
(i)粉末層の所定箇所に光ビームを照射して所定箇所の粉末を焼結又は溶融固化させて固化層を形成する工程、および
(ii)得られた固化層の上に新たな粉末層を形成し、新たな粉末層の所定箇所に光ビームを照射して更なる固化層を形成する工程
により粉末層および固化層を交互に繰り返して積層させることで三次元形状造形物を製造する方法であって、
固化層の形成時において、光ビームが照射される被照射スポットの外観性状をモニタリングすることを更に含む、三次元形状造形物の製造方法が提供される。
まず、本発明の一実施形態の製造方法の前提となる粉末床溶融結合法について説明する。特に粉末床溶融結合法において三次元形状造形物の切削処理を付加的に行う光造形複合加工を例として挙げる。図11は、光造形複合加工のプロセス態様を模式的に示しており、図12および図13は、粉末床溶融結合法と切削処理とを実施できる光造形複合加工機の主たる構成および動作のフローチャートをそれぞれ示している。
本発明は、上述の粉末床溶融結合法において固化層の形成態様に特徴を有している。
チャンバー外から被照射スポットの外観性状をモニタリングした。具体的には、チャンバー外から被照射スポットに生じる光の色の動画をデジタルカメラ(画素数:207万画素、フレーム率:29fps)を用いて撮影した。なお、本実施例では、被照射スポット領域における照射条件を以下の2つの条件に場合分けした。
・照射条件1(低速・高照射エネルギー条件)
走査速度:215mm/s、照射エネルギー密度:99.2J/mm3
・照射条件2(高速・低照射エネルギー条件)
走査速度:250mm/s、照射エネルギー密度:73.1J/mm3
チャンバー外から被照射スポットの外観性状をモニタリングした。具体的には、チャンバー外から被照射スポットに生じる光の色の動画をデジタルカメラ(画素数:207万画素、フレーム率:29fps)を用いて撮影した。なお、本実施例では、被照射スポット領域における照射条件を以下の2つの条件に場合分けした。
・照射条件1(照射エネルギー大)
走査速度:215mm/s、照射エネルギー密度:99.2J/mm3
・照射条件2(照射エネルギー小)
走査速度:250mm/s、照射エネルギー密度:73.1J/mm3
チャンバー外から被照射スポットの外観性状をモニタリングした。具体的には、チャンバー外から被照射スポットに生じる光の色の動画をRGBカメラ(画素数:500万画素、フレーム率:20fps、レンズ焦点距離:75mm、F値:16)を用いて撮影した。なお、本実施例では、被照射スポット領域における照射条件を以下の2つの条件に場合分けした。
・照射条件3(照射エネルギー大)
レーザ出力:320W、スポット径:0.3mm、走査速度:300mm/s、照射エネルギー密度:61.0J/mm3
・照射条件4(照射エネルギー小)
レーザ出力:160W、スポット径:0.1mm、走査速度:300mm/s、照射エネルギー密度:61.0J/mm3
22 粉末層
24 固化層
24A 固化層
24B 固化層
24C 固化層
50 被照射スポット
50’ 被照射スポット
60 スパッタ
60’ スパッタ
70 ヒューム
70’ ヒューム
100 三次元形状造形物
L 光ビーム
Claims (4)
- (i)粉末層の所定箇所に光ビームを照射して該所定箇所の粉末を焼結又は溶融固化させて固化層を形成する工程、および
(ii)得られた固化層の上に新たな粉末層を形成し、該新たな粉末層の所定箇所に光ビームを照射して更なる固化層を形成する工程
により粉末層および固化層を交互に繰り返して積層させることで三次元形状造形物を製造する方法であって、
前記固化層の形成時において、前記光ビームが照射される被照射スポットの外観性状をモニタリングすることを更に含み、前記外観性状として前記被照射スポットに生じる光の色を前記モニタリングし、前記モニタリングにおいて、前記光の前記色を撮影し、該撮影した該光の該色の画像データから該光の該色に関する数値情報を得る、三次元形状造形物の製造方法。 - 前記被照射スポットの前記外観性状に応じて、同一層にて前記固化層の形成条件を途中で変える、請求項1に記載の三次元形状造形物の製造方法。
- 前記被照射スポットの前記外観性状に応じて、異なる層間で前記固化層の形成条件を変える、請求項1に記載の三次元形状造形物の製造方法。
- 前記被照射スポットの前記外観性状に基づき、前記光ビームの照射時におけるスパッタおよびヒュームの少なくとも一方の挙動を把握する、請求項1~3のいずれかに記載の三次元形状造形物の製造方法。
Priority Applications (5)
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JP2016172058A JP7065351B2 (ja) | 2016-09-02 | 2016-09-02 | 三次元形状造形物の製造方法 |
US16/329,434 US20190217386A1 (en) | 2016-09-02 | 2017-08-25 | Method for manufacturing three-dimensional shaped object |
PCT/JP2017/030580 WO2018043349A1 (ja) | 2016-09-02 | 2017-08-25 | 三次元形状造形物の製造方法 |
CN201780053373.7A CN109641275A (zh) | 2016-09-02 | 2017-08-25 | 三维形状造形物的制造方法 |
EP17846354.3A EP3508290A4 (en) | 2016-09-02 | 2017-08-25 | METHOD FOR MANUFACTURING THREE DIMENSIONAL MOLDING |
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JP2016172058A JP7065351B2 (ja) | 2016-09-02 | 2016-09-02 | 三次元形状造形物の製造方法 |
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JP7065351B2 true JP7065351B2 (ja) | 2022-05-12 |
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EP (1) | EP3508290A4 (ja) |
JP (1) | JP7065351B2 (ja) |
CN (1) | CN109641275A (ja) |
WO (1) | WO2018043349A1 (ja) |
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JP7140828B2 (ja) * | 2018-06-13 | 2022-09-21 | 株式会社ニコン | 演算装置、検出システム、造形装置、演算方法、検出方法、造形方法、演算プログラム、検出プログラムおよび造形プログラム |
CN118003637A (zh) * | 2018-06-13 | 2024-05-10 | 株式会社尼康 | 运算装置 |
US10780498B2 (en) * | 2018-08-22 | 2020-09-22 | General Electric Company | Porous tools and methods of making the same |
US11776072B2 (en) | 2019-04-25 | 2023-10-03 | Shibaura Machine Co., Ltd. | Machine learning method, information processing device, computer program product, and additive manufacturing monitoring system |
JP7221777B2 (ja) * | 2019-04-25 | 2023-02-14 | 芝浦機械株式会社 | 積層造形監視システム |
JP7082355B2 (ja) * | 2020-10-20 | 2022-06-08 | 石川県 | 造形状態推定システム、方法、コンピュータプログラム、及び学習モデルの学習方法 |
JP7165957B2 (ja) * | 2020-10-20 | 2022-11-07 | 石川県 | 造形状態推定システム、方法、コンピュータプログラム、及び学習モデルの学習方法 |
EP4241907A4 (en) | 2020-11-04 | 2024-04-03 | Proterial, Ltd. | METHOD FOR PREDICTING THE DEFECTS OF AN ADDITIVELY MANUFACTURED PRODUCT AND METHOD FOR PRODUCING AN ADDITIVELY MANUFACTURED PRODUCT |
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WO2015200173A1 (en) | 2014-06-23 | 2015-12-30 | Carbon3D, Inc. | Methods of producing three-dimensional objects from materials having multiple mechanisms of hardening |
JP5948462B1 (ja) | 2015-05-19 | 2016-07-06 | 株式会社ソディック | 積層造形装置 |
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JP2008162189A (ja) * | 2006-12-28 | 2008-07-17 | Sony Corp | 光造形装置 |
JP2009270130A (ja) * | 2008-04-30 | 2009-11-19 | Aida Kagaku Kogyo Kk | 銀粉末または銀合金粉末、銀または銀合金の造形体の製造方法並びに銀または銀合金の造形体 |
DE202010010771U1 (de) * | 2010-07-28 | 2011-11-14 | Cl Schutzrechtsverwaltungs Gmbh | Laserschmelzvorrichtung zum Herstellen eines dreidimensionalen Bauteils |
CN103460797B (zh) * | 2010-11-02 | 2016-03-02 | 王子控股株式会社 | 有机发光二极管及其制造方法、图像显示装置及照明装置 |
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GB201316815D0 (en) * | 2013-09-23 | 2013-11-06 | Renishaw Plc | Additive manufacturing apparatus and method |
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CN105728726A (zh) * | 2016-04-20 | 2016-07-06 | 华南理工大学 | 一种金属3d打印密封成型室内气压稳定装置及方法 |
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- 2017-08-25 EP EP17846354.3A patent/EP3508290A4/en not_active Withdrawn
- 2017-08-25 WO PCT/JP2017/030580 patent/WO2018043349A1/ja unknown
- 2017-08-25 US US16/329,434 patent/US20190217386A1/en not_active Abandoned
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JP2015193883A (ja) | 2014-03-31 | 2015-11-05 | 日本電子株式会社 | 3次元積層造形装置及び3次元積層造形方法 |
WO2015200173A1 (en) | 2014-06-23 | 2015-12-30 | Carbon3D, Inc. | Methods of producing three-dimensional objects from materials having multiple mechanisms of hardening |
JP5948462B1 (ja) | 2015-05-19 | 2016-07-06 | 株式会社ソディック | 積層造形装置 |
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EP3508290A4 (en) | 2019-09-25 |
JP2018035429A (ja) | 2018-03-08 |
WO2018043349A1 (ja) | 2018-03-08 |
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US20190217386A1 (en) | 2019-07-18 |
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