JP7394032B2 - 付加製造方法 - Google Patents
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- JP7394032B2 JP7394032B2 JP2020131646A JP2020131646A JP7394032B2 JP 7394032 B2 JP7394032 B2 JP 7394032B2 JP 2020131646 A JP2020131646 A JP 2020131646A JP 2020131646 A JP2020131646 A JP 2020131646A JP 7394032 B2 JP7394032 B2 JP 7394032B2
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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
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- B22F12/17—Auxiliary heating means to heat the build chamber or platform
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- B—PERFORMING OPERATIONS; TRANSPORTING
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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
- 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
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- B29C64/141—Processes of additive manufacturing using only solid materials
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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
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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
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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
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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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- 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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- B—PERFORMING OPERATIONS; TRANSPORTING
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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
- B22F2201/00—Treatment under specific atmosphere
- B22F2201/10—Inert gases
- B22F2201/11—Argon
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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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- 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
- B29C64/295—Heating elements
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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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- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Automation & Control Theory (AREA)
- Plasma & Fusion (AREA)
- Environmental & Geological Engineering (AREA)
- Powder Metallurgy (AREA)
Description
付加製造装置100は、たとえば、チャンバ10と、ガス供給部20と、排気機構30と、材料供給部40と、付加製造部50と、回収部60と、リコータ70と、ビーム源80と、制御部90と、を備えている。
次に、付加製造装置100を用いた本実施形態の付加製造方法Mについて説明する。図1に示すように、本実施形態の付加製造方法Mは、たとえば造形準備工程P1と、付加製造工程P2とを有している。
材料粉末Pとして、熱間工具鋼鋼材(JIS SKD61)の粉末を使用し、前述の実施形態で説明した造形準備工程P1と付加製造工程P2を含む付加製造方法Mによって造形物Sを製造した。なお、酸素量モニタリング処理P2cの酸素量の判定P222における酸素量の規定範囲は、0.3[ppm]以下に設定した。また、造形準備工程P1および温度モニタリング処理P2bの温度の判定P106,P212におけるステージ51の予熱温度の範囲は、450[℃]以上、550[℃]以下に設定した。また、不活性ガスは窒素ガスとし、供給量を15[l/min]とし、チャンバ10内の圧力を12000[Pa]以上、14000[Pa]以下に制御した。
材料粉末Pとして、ニッケル基合金(Alloy718)の粉末を使用し、前述の実施形態で説明した造形準備工程P1と付加製造工程P2を含む付加製造方法Mによって造形物Sを製造した。なお、酸素量モニタリング処理P2cの酸素量の判定P222における酸素量の規定範囲は、0.3[ppm]以下に設定した。また、造形準備工程P1および温度モニタリング処理P2bの温度の判定P106,P212におけるステージ51の予熱温度の範囲は、60[℃]以上、80[℃]以下に設定した。また、不活性ガスはアルゴンガスとし、供給量を15[l/min]とし、チャンバ内の減圧環境の圧力を12000[Pa]以上、14000[Pa]以下に制御した。本実施例で使用したニッケル合金の材料粉末Pは、付加製造において予熱を必要としない材料であるが、本実施例の付加製造方法により、減圧環境の酸素量を低減することができ、造形物Sの酸素量を約90[ppm]に低減することができた。
51 ステージ
L レーザ
M 付加製造方法
P2a 付加製造処理
P102 ステージの設置
P105 ステージの予熱
P203 溶融結合
P215 出力の制御(予熱温度の制御)
P216 温度の測定(予熱温度の制御)
P217 温度の判定(予熱温度の制御)
P225 真空排気(酸素量の調整)
P226 酸素量の判定(酸素量の調整)
P228 圧力の調整
P245 真空排気(酸素量の調整)
P246 酸素量の判定(酸素量の調整)
P248 圧力の調整
PB 粉末床
S 造形物
Claims (3)
- チャンバ内のステージの上に粉末床を形成し、前記粉末床にレーザを照射して溶融結合により造形物を製造する付加製造方法であって、
前記チャンバの内部の圧力を低下させて減圧環境とし、
前記ステージの予熱を行い、
前記予熱を継続しつつ前記チャンバ内にアルゴンガスを供給して前記チャンバ内の減圧環境の圧力を20000[Pa]以上、30000[Pa]以下に調整し、
前記ステージの予熱温度を200[℃]以上、650[℃]以下としながら、
前記ステージの上に前記粉末床を形成することを特徴とする付加製造方法。 - 前記粉末床の形成と前記溶融結合とを繰り返す付加製造中に、前記チャンバ内において180[s]で300[Pa]以上の圧力変化量が測定された場合に、前記圧力変化量の測定時の前記溶融結合の完了後に、前記チャンバ内の真空排気と、前記チャンバ内の酸素量および圧力の調整と、を行う、
請求項1に記載の付加製造方法。 - 前記粉末床の形成と前記溶融結合とを繰り返す付加製造中に、前記チャンバ内において規定値以上の酸素量が測定された場合に、前記規定値以上の酸素量が測定された直後の前記溶融結合の完了後に、前記チャンバ内の真空排気と、前記チャンバ内の酸素量および圧力の調整とを行う、
請求項1に記載の付加製造方法。
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JP2020131646A JP7394032B2 (ja) | 2020-08-03 | 2020-08-03 | 付加製造方法 |
PCT/JP2021/009091 WO2022030042A1 (ja) | 2020-08-03 | 2021-03-08 | 付加製造方法 |
DE112021002635.6T DE112021002635T5 (de) | 2020-08-03 | 2021-03-08 | Additives fertigungsverfahren |
US18/013,301 US20230321728A1 (en) | 2020-08-03 | 2021-03-08 | Additive manufacturing method |
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- 2021-03-08 US US18/013,301 patent/US20230321728A1/en active Pending
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JP2017145476A (ja) | 2016-02-18 | 2017-08-24 | キヤノン株式会社 | 三次元造形装置、及び三次元造形方法 |
CN106392067A (zh) | 2016-03-06 | 2017-02-15 | 武汉理工大学 | 基于湿法铺粉的选择性激光熔融设备及其打印工艺 |
US20190232429A1 (en) | 2018-02-01 | 2019-08-01 | Velo3D, Inc. | Three-dimensional printing |
JP2019142024A (ja) | 2018-02-16 | 2019-08-29 | 株式会社日立製作所 | 付加製造装置 |
WO2020099241A1 (de) | 2018-11-13 | 2020-05-22 | Covestro Deutschland Ag | Verfahren zur herstellung eines additiv gefertigten und behandelten gegenstands |
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US20230321728A1 (en) | 2023-10-12 |
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DE112021002635T5 (de) | 2023-03-09 |
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