JP2019534186A - 積層造形法のための方法及び熱的構造体 - Google Patents
積層造形法のための方法及び熱的構造体 Download PDFInfo
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Classifications
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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
-
- 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
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/003—Articles made for being fractured or separated into parts
-
- 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
- B29C64/40—Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
-
- 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]
-
- 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
- B22F10/30—Process control
-
- 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
- B22F10/40—Structures for supporting workpieces or articles during manufacture and removed afterwards
- B22F10/47—Structures for supporting workpieces or articles during manufacture and removed afterwards characterised by structural features
-
- 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
- B22F10/60—Treatment of workpieces or articles after build-up
-
- 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
- B22F12/90—Means for process control, e.g. cameras or sensors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2009/00—Layered products
-
- 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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- Materials Engineering (AREA)
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims (21)
- 物体を製造するための方法であって、
(a)一連の走査線内でエネルギービームを用いて粉末ベッド内の粉末層を照射して融着領域を形成すること、
(b)前記粉末ベッドの第1の側から前記粉末ベッドの第2の側まで前記粉末ベッドの上でリコータアームを通過させることによって、前記粉末ベッドの上に後続の粉末層を提供すること、及び
(c)前記物体と少なくとも1つの支持構造体とが前記粉末ベッド内に形成されるまで工程(a)及び工程(b)を繰り返すこと、
を含み、
前記少なくとも1つの支持構造体は、未融着粉末の部分によって前記物体から分離された犠牲構造体を含み、前記物体の各断面の領域からの熱散逸のレートは、前記犠牲構造体の存在によって増加されて、各断面の熱散逸レートは、前記物体内の温度勾配が、前記物体の変形を防止する指定された閾値未満に留まるように維持される、
方法。 - 前記物体の断面の前記領域からの熱散逸の前記レートを、前記物体のための構築プロセスの熱的モデルに基づいて判定することをさらに含む、請求項1に記載の方法。
- 前記物体の前記熱的モデルは、1つの層内の前記物体の水平断面と、1又は複数の先行する層内の前記融着領域とに基づく、請求項2に記載の方法。
- パイロメータ又はサーマルイメージングカメラを使用して前記物体の温度を測定することをさらに含む、請求項1に記載の方法。
- 測定された温度に基づいて前記犠牲構造体の寸法を動的に調節することをさらに含む、請求項4に記載の方法。
- 前記犠牲構造体のマスは前記物体のマスより大きい、請求項1に記載の方法。
- 前記犠牲構造体は、各層内の前記融着領域と、前記粉末ベッドの合計面積との間の実質的に一定の比率を維持する、請求項1に記載の方法。
- 各層内の前記物体及び前記少なくとも1つの支持構造体の合計融着領域は、熱的モデルに基づく閾値面積を超過する、請求項1に記載の方法。
- 前記犠牲構造体の表面は、前記物体の表面に合致し、未融着粉末の部分によって前記物体から分離される、請求項1に記載の方法。
- 前記犠牲構造体は造形プレートから、少なくとも、熱的モデルに基づいて前記物体のマスが閾値マスを超過する高さまで延在する、請求項1に記載の方法。
- 前記犠牲構造体は前記物体の対向する端から延在する、請求項1に記載の方法。
- 前記犠牲構造体は前記物体の対向する面を覆う、請求項1に記載の方法。
- 前記犠牲構造体は前記物体の対向する端から延在する、及び前記物体の対向する面を覆う、請求項1に記載の方法。
- 前記少なくとも1つの支持構造体の合計マスは、前記物体のマスの2倍より大きい、請求項1に記載の方法。
- 前記物体は湾曲した表面を有し、除去可能な熱的構造体は対応する湾曲を有する、請求項1に記載の方法。
- 前記犠牲構造体と前記物体との間に隙間が存在する、請求項1に記載の方法。
- 前記隙間は粉末を用いて充填される、請求項16に記載の方法。
- 前記物体と前記犠牲構造体とはほぼ同じ高さを有する、請求項1に記載の方法。
- 以前に製造された物体の経験的測定値に基づいて前記犠牲構造体の寸法を調節することをさらに含む、請求項1に記載の方法。
- 閾値を超過する前記物体のアスペクト比に基づいて、前記犠牲構造体を前記物体の3次元モデルに追加することをさらに含む、請求項1に記載の方法。
- 前記指定された閾値は、粉末の熱的特性に基づく、請求項1に記載の方法。
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US15/335,116 | 2016-10-26 | ||
US15/335,116 US10471695B2 (en) | 2016-10-26 | 2016-10-26 | Methods and thermal structures for additive manufacturing |
PCT/US2017/053456 WO2018080691A1 (en) | 2016-10-26 | 2017-09-26 | Methods and thermal structures for additive manufacturing |
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JP2020207466A Active JP7043574B2 (ja) | 2016-10-26 | 2020-12-15 | 積層造形法のための方法及び熱的構造体 |
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WO (1) | WO2018080691A1 (ja) |
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JP6859435B2 (ja) | 2021-04-14 |
JP7043574B2 (ja) | 2022-03-29 |
CN110087804B (zh) | 2021-10-22 |
US20180111334A1 (en) | 2018-04-26 |
CN110087804A (zh) | 2019-08-02 |
WO2018080691A1 (en) | 2018-05-03 |
EP3532221A1 (en) | 2019-09-04 |
JP2021059785A (ja) | 2021-04-15 |
US10471695B2 (en) | 2019-11-12 |
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