JP7191959B2 - 3次元物体を積層製造するための装置 - Google Patents
3次元物体を積層製造するための装置 Download PDFInfo
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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]
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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
- B22F12/20—Cooling 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
- 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
- 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
- B29C64/245—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
- 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
- B22F10/10—Formation of a green body
- B22F10/14—Formation of a green body by jetting of binder onto a bed of metal powder
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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
- B22F12/10—Auxiliary heating means
- B22F12/17—Auxiliary heating means to heat the build chamber or platform
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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
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
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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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- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Powder Metallurgy (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Producing Shaped Articles From Materials (AREA)
Description
3次元物体を作成するために、例において記載する装置を使用した。3次元物体を製造するために、表1に挙げる特性を有するPA12粉末を使用した。そのためには、すべての例において、6mmの粉末層を造形空間プラットフォーム上に敷き、造形空間全体を180分間、168℃の温度に予備加熱した。造形プロセスを開始し(加工温度174℃、層厚0.15mm)、全体として36個の引張試験片(DIN ISO527、照射パラメータ設定:速度、物体の位置およびアライメントはすべての例において同じ)を造形した。それぞれ12個の、z方向(垂直)の引張試験片は造形領域の周縁部および中央に配置した。残りの12個の引張試験片は、x方向(水平)に造形領域に配置した。粉末床の高さは、造形プロセスの終了時にそれぞれ320mmであった。造形プロセスの継続時間は、それらの例では18h57minであった。造形プロセスの終了後、加熱のスイッチを切り、造形空間コンテナをその中に含有されている粉末と共に72h、レーザ焼結機中に保管した。次いで、作製した3次元物体を粉末床から取り出して試験した。粉末も同じく造形空間コンテナから取り出し、ミキサを利用してホモジナイズした。続いて、そのようにホモジナイズした粉末の溶液粘度(ISO307、Schott AVS Pro、溶媒は、酸性m-クレゾール、容積法、二重測定、溶解温度100℃、溶解時間2h、ポリマー濃度5g/l、測定温度25℃)を測定した。
表1の材料特性値を有するPA12粉末を、eos GmbH社のEOSINT P395レーザ焼結機で加工した。サンプリングチャンバ温度を、130℃に調整した。
表1の材料特性値を有するPA12粉末を、eos GmbH社のEOSINT P395レーザ焼結機で加工する。サンプリングチャンバの加熱のスイッチを切った。造形空間コンテナの外郭面は、40mmの壁厚を有する発泡ガラスからなっていた。
2 粉末
3 スライド装置
4 造形領域
5 エネルギー源
6 造形空間プラットフォーム
7 3次元物体
8 造形空間コンテナ
9 粉末ケーキ
10 造形領域平面
11 造形空間コンテナの外郭面
12 造形空間プラットフォームの上側
13 造形空間プラットフォームの下側
14 冷媒用出口
15 外部駆動のターボ機械
16 冷媒用入口
17 冷却流路
Claims (6)
- 造形空間(1)と、少なくとも1つのエネルギー源(5)と、造形空間プラットフォーム(6)を有する造形領域(4)と、前記造形空間プラットフォーム(6)を側方で囲む造形空間コンテナ(9)とを含む、粉末床溶融結合法において3次元物体を積層製造するための装置であって、前記造形空間プラットフォーム(6)が、粉末(2)に面した上側(12)と前記粉末に面していない下側(13)とを有する装置において、前記上側(12)が、少なくとも20W/(m・K)の熱伝導率を有する材料を含み、前記下側(13)が、最高0.5W/(m・K)の熱伝導率を有する材料を含み、かつ前記造形空間プラットフォーム(6)の前記上側(12)の、前記粉末(2)または冷媒との接触面積が、造形空間プラットフォーム(6)の平面と比べて少なくとも20%だけ増大し、
前記下側(13)に1つまたは複数の外部駆動のターボ機械(15)が組み込まれていることを特徴とする、装置。 - 冷媒用の少なくとも1つの入口(16)および少なくとも1つの出口(14)が、それぞれ前記造形空間プラットフォーム(6)の前記下側(13)に配置されていることを特徴とする、請求項1記載の装置。
- 前記造形空間コンテナ(9)が外郭面(11)を有し、前記外郭面(11)が、最高0.5W/(m・K)の熱伝導率を有する材料を含むことを特徴とする、請求項1または2記載の装置。
- 前記造形空間コンテナ(9)の前記外郭面(11)が、少なくとも10mmの層厚を有することを特徴とする、請求項3記載の装置。
- 造形空間(1)と、少なくとも1つのエネルギー源(5)と、造形空間プラットフォーム(6)を有する造形領域(4)と、前記造形空間プラットフォーム(6)を側方で囲む造形空間コンテナ(9)とを含む、粉末床溶融結合法において3次元物体を積層製造するための装置であって、前記造形空間プラットフォーム(6)が、粉末(2)に面した上側(12)と前記粉末に面していない下側(13)とを有する装置において、前記上側(12)が、少なくとも20W/(m・K)の熱伝導率を有する材料を含み、前記下側(13)が、最高0.5W/(m・K)の熱伝導率を有する材料を含むことを特徴とする装置内で、粉末床溶融結合法において3次元物体を積層製造する方法であって、
a.粉末(2)を、少なくとも6mmの層厚で供給するステップと、
b.前記造形空間プラットフォーム(6)の前記上側(12)の温度が加工温度を最高で15℃下回り、前記加工温度が前記粉末(2)の融点を10~20℃下回るように調整するステップと、
c.前記造形空間(1)内の温度(加工温度)が前記粉末の融解温度を下回るように調整するステップと、
d.前記粉末(2)の焼結すべき部位に、インクジェットを利用して溶融助剤を施与するステップと、
e.エネルギー源(5)により前記粉末に電磁エネルギーを印加して、選択的焼結を行うステップと、
f.さらなる粉末(2)を施与するステップと、
g.前記ステップd~fを繰り返すステップと
を含み、前記製造方法の開始後、前記造形空間プラットフォーム(6)の前記上側(12)の温度を、前記造形空間プラットフォーム(6)の前記上側(12)が最高50℃の温度に達するまで、造形進捗10mmごとに少なくとも5℃だけ下げることを特徴とする、方法。 - 前記造形空間プラットフォーム(6)の前記上側(12)の温度が、方法の進行と共に降下することを特徴とする、請求項5記載の粉末床溶融結合法。
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EP17210030.7 | 2017-12-22 | ||
EP17210030.7A EP3501695A1 (de) | 2017-12-22 | 2017-12-22 | Vorrichtung zur schichtweisen herstellung von dreidimensionalen objekten sowie herstellungsverfahren dazu |
PCT/EP2018/085165 WO2019121490A1 (de) | 2017-12-22 | 2018-12-17 | Vorrichtung zur schichtweisen herstellung von dreidimensionalen objekten |
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JP2021508293A JP2021508293A (ja) | 2021-03-04 |
JP7191959B2 true JP7191959B2 (ja) | 2022-12-19 |
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US (1) | US11511488B2 (ja) |
EP (2) | EP3501695A1 (ja) |
JP (1) | JP7191959B2 (ja) |
CN (1) | CN111465461B (ja) |
ES (1) | ES2924226T3 (ja) |
PL (1) | PL3519129T3 (ja) |
WO (1) | WO2019121490A1 (ja) |
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2018
- 2018-12-17 EP EP18815754.9A patent/EP3519129B1/de active Active
- 2018-12-17 US US15/733,258 patent/US11511488B2/en active Active
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- 2018-12-17 CN CN201880082561.7A patent/CN111465461B/zh active Active
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Also Published As
Publication number | Publication date |
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CN111465461B (zh) | 2023-05-16 |
CN111465461A (zh) | 2020-07-28 |
EP3519129B1 (de) | 2022-06-15 |
WO2019121490A1 (de) | 2019-06-27 |
US20200307085A1 (en) | 2020-10-01 |
PL3519129T3 (pl) | 2022-09-05 |
ES2924226T3 (es) | 2022-10-05 |
EP3501695A1 (de) | 2019-06-26 |
EP3519129A1 (de) | 2019-08-07 |
US11511488B2 (en) | 2022-11-29 |
JP2021508293A (ja) | 2021-03-04 |
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