JP2021521333A - 3d印刷用の金属粉末 - Google Patents
3d印刷用の金属粉末 Download PDFInfo
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- JP2021521333A JP2021521333A JP2020555828A JP2020555828A JP2021521333A JP 2021521333 A JP2021521333 A JP 2021521333A JP 2020555828 A JP2020555828 A JP 2020555828A JP 2020555828 A JP2020555828 A JP 2020555828A JP 2021521333 A JP2021521333 A JP 2021521333A
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Images
Classifications
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- 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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Abstract
Description
3D印刷法における金属粉末の使用は、その粉末が特定の特性を有することを必要とする。例えば、均質且つ無孔の物品を製造するためには、粉末は流動性でなければならない。さらに、通常は特定の粒子サイズ分布が必要とされ、それは使用される具体的な3D法に依存して変わることがある。従って、選択的レーザー溶融法において用いられる粉末について必要とされる粒子サイズ分布は、電子線溶融法において用いられるものとは異なり得る。さらに、後の物品の機械的特性を改善するためには、粉末中の酸素、窒素および水素の含有率が低いことが好ましい。最後だが大事なことには、機械的に安定であり且つ無孔の物品を製造するために必要とされる十分な溶融を可能にするために、用いられる粉末は別個の波長のレーザー光または電子線について十分な吸収を有するべきである。従って、3D印刷法において用いるために特に設計された粉末、並びに前記粉末の製造方法についての要求がまだある。
a) 粉末の粉末状成分をプレスするか、またはプレスおよび焼結して、金属体を得る段階、
b) 前記金属体を噴霧化して、金属粉末を得る段階、
c) ASTM B822に準拠して測定して、2μm未満、好ましくは5μm未満、さらにより好ましくは10μm未満の粒子サイズを有する粒子を分離して、本発明の金属粉末を得る段階、および
d) 本発明の金属粉末の粒子サイズをスクリーニングによって分級して、所望の粒子サイズ分布を得る段階
を含む。
・ DIN EN ISO 6892−1に準拠して測定して20〜100GPa、好ましくは40〜90GPa、特に40〜80GPaの弾性率mE、
・ DIN EN ISO 6892−1に準拠して測定して600〜1400MPa、好ましくは600〜1200MPa、特に600〜699MPaの極限強さRm、および
・ DIN EN ISO 6892−1に準拠して測定して500〜1200MPa、好ましくは500〜1000MPa、特に500〜699MPaの降伏強さRp0.2
を有する。
1) 篩別/空気分級
2) 超音波処理
3) 水の傾瀉(pH5〜8で)
によって分ける段階に供した。
Rp0.2: DIN EN ISO 6892−1:2016に準拠して測定された降伏強さ
Rm: DIN EN ISO 6892−1:2016に準拠して測定された極限強さ
Fm: DIN EN ISO 6892−1:2016に準拠して測定された最大力
Ag: DIN EN ISO 6892−1:2016に準拠して測定されたRmでのひずみ
A30: DIN EN ISO 6892−1:2016に準拠して測定された破壊ひずみ
S0: DIN EN ISO 6892−1:2016に準拠して測定された断面の面積
表3:
1: Ti 70.8質量%、Nb 26.3質量%、Ta 2.9質量%
2: Ti 72.4質量%、Nb 25.4質量%、Ta 2.2質量%
3: Ti 54.0質量%、Nb 38.2質量%、Ta 7.8質量%
4: Ti 54.6質量%、Nb 38.0質量%、Ta 7.4質量%
を有する粉末の樹枝状の特徴を明らかに示す。
1: Ti 56.4質量%、Nb 40.0質量%、Ta 3.6質量%
2: Ti 64.4質量%、Nb 32.1質量%、Ta 3.4質量%
3: Ti 67.4質量%、Nb 31.4質量%、Ta 1.2質量%
4: Ti 53.7質量%、Nb 41.4質量%、Ta 4.9質量%
5: Ti 53.5質量%、Nb 42.0質量%、Ta 4.5質量%
を有する粉末の樹枝状の特徴を明らかに示す。
Claims (25)
- 3D印刷法において使用するために適した金属粉末であって、前記粉末はタンタル、チタン、ニオブおよびそれらの合金からなる群から選択される金属を含むか、または前記金属からなり、且つ前記金属粉末の粒子は、平均アスペクト比ψA 0.7〜1、好ましくは0.8〜1、より好ましくは0.9〜1、さらにより好ましくは0.95〜1を有し、ここでψA=x最小フェレット/x最大フェレットである、前記粉末。
- 前記粉末がチタンとニオブとの合金を含むか、またはチタンとニオブとの合金からなる、請求項1に記載の粉末。
- 前記合金がさらにタンタルを含有する、請求項1または2に記載の粉末。
- 前記粉末がチタンとニオブとタンタルとの金属合金を含むか、またはチタンとニオブとタンタルとの金属合金からなる、請求項1から3までのいずれか1項に記載の粉末。
- 前記粉末が、ASTM B527に準拠して測定して、理論密度の40〜80%、好ましくは理論密度の60〜80%のタップ密度を有する、請求項1から4までのいずれか1項に記載の粉末。
- 前記粉末が、ASTM B213に準拠して測定して25秒/50g未満、特に20秒/50g未満、さらにより好ましくは15秒/50g未満の流動性を有する、請求項1から5までのいずれか1項に記載の粉末。
- 前記粉末が、ASTM B822に準拠して測定して2μmを上回る、好ましくは5μmを上回るD10、および80μm未満、好ましくは70μm未満のD90と共に、20〜50μm、好ましくは25〜50μmのD50の粒子サイズ分布を有する、請求項1から6までのいずれか1項に記載の粉末。
- 前記粉末が、ASTM B822に準拠して測定して20μmを上回る、好ましくは50μmを上回るD10、および150μm未満、好ましくは120μm未満のD90と共に、40〜90μm、好ましくは60〜85μmのD50の粒子サイズ分布を有する、請求項1から6までのいずれか1項に記載の粉末。
- 前記粉末が、ASTM B822に準拠して測定して50μmを上回る、好ましくは80μmを上回るD10、および240μm未満、好ましくは210μm未満のD90と共に、60〜150μm、好ましくは100〜150μmのD50の粒子サイズ分布を有する、請求項1から6までのいずれか1項に記載の粉末。
- 前記粉末中の酸素のレベルが3000ppm未満、特に1500ppm未満、および特に1000ppm未満、より特に500ppm未満、さらにより特に300ppm未満である、請求項1から9までのいずれか1項に記載の粉末。
- 請求項1から10までのいずれか1項に記載の粉末の製造方法であって、
a) 粉末の粉末状成分をプレスするか、またはプレスおよび焼結して、金属体を得る段階、
b) 段階a)の金属体を噴霧化して、金属粉末を得る段階、
c) ASTM B822に準拠して測定して、2μm未満、好ましくは5μm未満、さらにより好ましくは10μm未満の粒子サイズを有する粒子を分離して、本発明の金属粉末を得る段階、および
d) 本発明の金属粉末の粒子サイズをスクリーニングによって分級する段階
を含む、前記方法。 - 前記方法の段階c)における分離を、粉末を篩別することによって実現する、請求項11に記載の方法。
- 前記方法の段階c)における分離を、超音波を使用した水浴中での解凝集および引き続く傾瀉によって実現する、請求項11に記載の方法。
- 前記方法の段階c)における分離を、水浴中での攪拌および引き続く傾瀉によって実現する、請求項11に記載の方法。
- 前記方法がさらに脱酸素の段階を含む、請求項11から14までのいずれか1項に記載の方法。
- 前記粉末をさらに酸処理に供する、請求項11から15までのいずれか1項に記載の方法。
- 付加製造法における、請求項1から10までのいずれか1項に記載の粉末の使用。
- 請求項1から10までのいずれか1項に記載の粉末を使用する三次元物品の製造方法であって、前記三次元物品が1層ずつ構築される、前記方法。
- 前記方法が、選択的レーザー溶融(SLM、LBM)、電子ビーム溶融(EBM)およびレーザークラッディング(LC)からなる群から選択される、請求項18に記載の方法。
- 請求項18に記載の方法によって得られる三次元物品。
- 前記三次元物品が、DIN EN ISO 6892−1に準拠して測定して20〜100GPa、好ましくは40〜90GPa、特に40〜80GPaの弾性率mEを有することを特徴とする、請求項20に記載の三次元物品。
- 前記三次元物品が、DIN EN ISO 6892−1に準拠して測定して600〜1400MPa、好ましくは600〜1200MPa、特に600〜699MPaの極限強さRmを有することを特徴とする、請求項20または21に記載の三次元物品。
- 前記三次元物品が、DIN EN ISO 6892−1に準拠して測定して500〜1200MPa、好ましくは500〜1000MPa、特に500〜699MPaの降伏強さRp0.2有することを特徴とする、請求項20から22までのいずれか1項に記載の三次元物品。
- 前記三次元物品が、
・ DIN EN ISO 6892−1に準拠して測定して20〜100GPa、好ましくは40〜90GPa、特に40〜80GPaの弾性率mE、
・ DIN EN ISO 6892−1に準拠して測定して600〜1400MPa、好ましくは600〜1200MPa、特に600〜699MPaの極限強さRm、および
・ DIN EN ISO 6892−1に準拠して測定して500〜1200MPa、好ましくは500〜1000MPa、特に500〜699MPaの降伏強さRp0.2
を有することを特徴とする、請求項20から23までのいずれか1項に記載の三次元物品。 - 前記三次元物品が医療用物品、特に医療用インプラントであることを特徴とする、請求項20から24までのいずれか1項に記載の三次元物品。
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JP2022513817A (ja) * | 2018-12-12 | 2022-02-09 | グローバル アドバンスト メタルズ ユー.エス.エー.,インコーポレイティド | 球状ニオブ合金粉末、それを含有する製品、及びその作製方法 |
JP7250374B2 (ja) | 2018-12-12 | 2023-04-03 | グローバル アドバンスト メタルズ ユー.エス.エー.,インコーポレイティド | 球状ニオブ合金粉末、それを含有する製品、及びその作製方法 |
JP2022541046A (ja) * | 2019-07-19 | 2022-09-21 | グローバル アドバンスト メタルズ ユー.エス.エー.,インコーポレイティド | 球状タンタル-チタン合金粉末、それを含有する製品、及びその作製方法 |
JP7228307B2 (ja) | 2019-07-19 | 2023-02-24 | グローバル アドバンスト メタルズ ユー.エス.エー.,インコーポレイティド | 球状タンタル-チタン合金粉末、それを含有する製品、及びその作製方法 |
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JP7424994B2 (ja) | 2024-01-30 |
US20240123495A1 (en) | 2024-04-18 |
BR112020019365A2 (pt) | 2020-12-29 |
KR20200141043A (ko) | 2020-12-17 |
IL277960A (en) | 2020-11-30 |
JP2023175759A (ja) | 2023-12-12 |
EP3774121A1 (en) | 2021-02-17 |
AU2019252333B2 (en) | 2024-06-13 |
CN111918737A (zh) | 2020-11-10 |
CA3093878A1 (en) | 2019-10-17 |
AU2019252333A1 (en) | 2020-10-01 |
US20220023941A1 (en) | 2022-01-27 |
US11865612B2 (en) | 2024-01-09 |
WO2019197376A1 (en) | 2019-10-17 |
US20240123496A1 (en) | 2024-04-18 |
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