JP2017053025A - 粉末層付加製造装置及び方法 - Google Patents
粉末層付加製造装置及び方法 Download PDFInfo
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Abstract
Description
12 ビルドエンクロージャ
14 第1のゾーン、第1の気密ゾーン
15 アクセス
16 第2のゾーン
17 窓
18 粉末供給機構
20 粉末移動機構
22 オーバーフロー開口
24 ビルドプラットフォーム
26 ビルドプレート
28 シール
29 凹部(スロット)
30 外部の熱制御機構
32 部品移動機構
34 作業表面
36 (ビルドプレートの)ビルド表面
37 (ビルドプレートの)下面
38 (ビルドプレートの)開口
42 ビルド開口
44 供給開口
45 オーバーフロー受け
50 供給容器
52 供給部材
54 アクチュエータ機構
55 部品アクチュエータ
56 粉末係合部材
57 (粉末係合部材の)下縁
58 アクチュエータ機構
60 粉末層
62 部品係合機構
64 (部品の)端部
80 方向付けされたエネルギ源
82 ビーム案内機構
B ビーム
C 部品
P 金属粉末
S 焦点
Claims (15)
- 金属部品(C)又はその一部分を製造するための装置(10)であって、
ビルド表面(36)と、下面(37)と、開口(38)とを備えるビルドプレート(26)であって、開口(38)は、該ビルドプレート(26)を貫いて下面(37)とビルド表面(36)との間に延在するビルドプレート(26)と、
金属部品(C)の端部(64)がビルドプレート(26)の開口(38)内かつビルド表面(36)よりも下方に位置するように、金属部品(C)をビルドプレート(26)に対して移動させるように動作することができるアクチュエータ(55)と、
ビルドプレート(26)の開口(38)内に結合させられ、金属部品(C)の端部(64)に係合するように構成されたシール(28)と、
ビルドプレート(26)の下面(37)に近接して配置され、部品(C)の亀裂を防止すべく端部(64)の所定の温度プロフィールを形成するように動作することができる外部の熱制御機構(30)と
を備えており、
ビルドプレート(26)の開口(38)、シール(28)、及び金属部品(C)の端部(64)は、所定の組成の金属粉末(P)を内部に保持するように構成された粉末層(60)を形成するように協働する、装置(10)。 - ビルドプレート(26)の開口(38)は、金属部品(C)の端部(64)の第2の断面によって定められる面積の135%以下の面積を定める第1の断面を備えている、請求項1に記載の装置(10)。
- 外部の熱制御機構(30)は、ビルドプレート(26)に対して不変の位置関係にある、請求項1に記載の装置(10)。
- ビルドプレート(26)は、非金属である、請求項1に記載の装置(10)。
- 温度プロフィールに従って外部の熱制御機構(30)を介して端部(64)の温度を制御する温度フィードバック機構
をさらに備える、請求項1に記載の装置(10)。 - シール(28)は、少なくとも粉末層(60)内の金属粉末(P)に対して開口(38)を封止する、請求項1に記載の装置(10)。
- 金属部品(C)の端部(64)上に粉末層(60)内の金属粉末(P)を融合させるために適したエネルギビームを生成するように動作することができる方向付けされたエネルギ源(80)
をさらに備える、請求項1に記載の装置(10)。 - 実質的に酸素の存在しない雰囲気を形成する気密なビルドエンクロージャ(12)をさらに備え、少なくとも粉末層(60)は、実質的に酸素の存在しない雰囲気内に位置する、請求項1に記載の装置(10)。
- 所定の組成の金属粉末(P)の供給源と、
供給源からの金属粉末(P)を移動させて粉末層(60)を金属粉末(P)で実質的に満たすように動作することができる移動機構(20)と
をさらに備える、請求項1に記載の装置(10)。 - 外部の熱制御機構(30)は、金属部品(C)が開口(38)内に配置されたときに金属部品(C)の周りに延在する1以上の誘導コイルを備え、ビルドプレート(26)は、1以上の誘導コイルによってビルドプレート(26)が金属粉末(P)の焼結温度まで加熱されることを防止するように動作することができる電気絶縁材料で形成されている、請求項1に記載の装置(10)。
- 部品(C)又はその一部分を製造する方法であって、
部品を、ビルド表面(36)と、下面(37)と、ビルド表面(36)と下面(37)との間に延在する開口(38)とを有しているビルドプレート(26)、及び開口(38)内に結合したシール(28)に対して、部品の端部(64)がシール(28)に係合しかつ開口(38)内でビルド表面(36)よりも下方に位置するように、移動させるステップと、
所定の組成の金属粉末(P)を、ビルドプレート(26)の開口(38)へと、シール(28)及び部品(C)の端部(64)の上方に堆積させるステップと、
端部(64)上に部品(C)の断面の層を形成するためのパターンで堆積させた金属粉末(P)の一部分を融合させるために方向付けされたエネルギ源(80)からのビームを案内するステップと、
形成された断面の層について、ビルドプレート(26)の下面(37)の下方に配置された外部の熱制御機構(30)にて、部品(C)の亀裂を防止するための温度プロフィールを形成するステップと
を含む方法。 - 部品を移動させるステップ、金属粉末(P)を堆積させるステップ、方向付けされたエネルギ源(80)からのビームを案内するステップ、及び温度プロフィールを形成するステップが、サイクルを形成し、
当該方法は、サイクルを複数回実行することで部品(C)に複数の層を付加するステップをさらに含む、請求項11に記載の方法。 - ビルドプレート(26)は、非金属であり、外部の熱制御機構(30)は、金属部品(C)の周りに延在する1以上の誘導コイルを備え、シール(28)は、堆積金属粉末(P)が開口(38)を通過することを防止する、請求項11に記載の方法。
- ビルドプレート(26)の開口(38)、シール(28)、及び金属部品(C)の端部(64)は、堆積金属粉末(P)を保持する粉末層(60)を形成するように協働する、請求項11に記載の方法。
- 部品(C)は、タービンブレードであり、形成された断面の層は、タービンブレードの先端部の一部分である、請求項11に記載の方法。
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US20200023631A1 (en) | 2020-01-23 |
BR102016019817A2 (pt) | 2017-03-01 |
CN106475560B (zh) | 2020-04-14 |
CN106475560A (zh) | 2017-03-08 |
EP3135408A1 (en) | 2017-03-01 |
US10343392B2 (en) | 2019-07-09 |
US11583931B2 (en) | 2023-02-21 |
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US20170056975A1 (en) | 2017-03-02 |
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