JP2018130961A - 改良型付加製造 - Google Patents
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- B33Y10/00—Processes of additive manufacturing
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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Abstract
【解決手段】塗布装置1により、下地の上に粉末9の層8を塗布する。加工ビーム12により、層8の第1の区域10を、該区域10内にある粉末9の粒子が加熱されるが未だ互いに結合はしないように、局所的に加熱する。該層8の温度プロフィルを検出し、第1の区域10の近辺で該区域10からの距離xや時間に応じて評価する。該評価の一環として第1の区域10の温度プロフィルに基づき少なくとも局所的熱伝導率k又は局所的拡散率Dを定量的又は定性的に判定する。加工ビーム12により、層8の第1の区域10と相関する第2の区域11を局所的に加熱し、該区域11内にある粉末9の粒子を互いに結合させる。第2の区域11の加熱に関わる加工ビーム12の少なくとも1つの加工変数を、相関する第1の区域10に対し判定済みの局所的熱伝導率k又は拡散率Dに関連して決定する。
【選択図】図1
Description
加工ビームの出力;
加工ビームを層上で移動させる送り速度;
加工ビームの出力の変調;
加工ビームのフォーカス変数。
2 加工ビーム発生装置
3 検出装置
4 制御装置
5 コンピュータプログラム
6 機械語
7 基板
8 層(塗布層)
9 粉末
10 第1の区域
11 第2の区域
12 加工ビーム
13 偏向装置
14 フィルタ
15 アクチュエータ
Claims (15)
- 付加製造装置の運転方法であって、
塗布装置(1)により、下地の上に粉末(9)の層(8)を塗布する工程と、
加工ビーム(12)による第1の加熱処理において、前記塗布層(8)の第1の区域(10)を、該第1の区域(10)内にある前記粉末(9)の粒子が加熱されるけれども未だ互いに結合するには至らないように、局所的に加熱する工程と、
検出装置(3)により、当該塗布層(8)の温度プロファイルを検出する工程と、
該温度プロファイルを、前記第1の区域(10)の近辺において該第1の区域(10)からの距離(x)及び時間のいずれか又は両方に応じて評価する工程と、
前記評価の一環として、前記第1の区域(10)の温度プロファイルに基づいて、少なくとも局所的熱伝導率(k)又は局所的拡散率(D)を定量的又は定性的に判定する工程と、
加工ビーム(12)による第2の加熱処理において、前記塗布層(8)の、前記第1の区域(10)と相関する第2の区域(11)を、該第2の区域(11)内にある前記粉末(9)の粒子が加熱されると共に互いに結合するように、局所的に加熱し、このときに、前記第2の区域(11)の加熱に関わる加工ビーム(12)の少なくとも1つの加工変数を、相関する前記第1の区域(10)に関し判定済みの前記局所的熱伝導率(k)又は拡散率(D)に応じて決定する工程とを、反復して実行する、運転方法。 - 前記第2の区域(11)に対する前記第2の加熱処理において前記粉末(9)の焼結又は溶融を行う、請求項1に記載の運転方法。
- 前記加工ビーム(12)がレーザー又は電子ビームである、請求項1又は2に記載の運転方法。
- 少なくとも1つの前記第1の区域(10)が線形構造として形成され、
前記温度プロファイルを、該線形構造に直交して一次元で評価する、請求項1〜3のいずれか1項に記載の運転方法。 - 少なくとも1つの前記第1の区域(10)が点形構造として形成され、
前記温度プロファイルを、該点形構造に直交して一次元で又は二次元で評価する、請求項1〜4のいずれか1項に記載の運転方法。 - 前記第2の区域(11)が細長い構造として形成されるか又は境界エッジを有する場合、これに相関する前記第1の区域(10)が、当該第2の区域(11)に対し平行であるか又は直交する、あるいは、前記境界エッジに対し平行であるか又は直交する線形構造として形成され、
前記第2の区域(11)が角又はオーバーハングを有する場合、これに相関する前記第1の区域(10)が、前記角又はオーバーハングを内包する、請求項1〜5のいずれか1項に記載の運転方法。 - 前記第1の加熱処理の前に前記塗布層(8)の局所的厚さ(d)を判定し、該局所的厚さ(d)を、少なくとも、前記第1の区域(10)の加熱に関わる加工スビーム(12)の加工変数を決定する一環として考慮する、又は、前記局所的熱伝導率(k)又は局所的拡散率(D)を判定する一環として、又は、前記第2の区域(11)の加熱に関わる加工ビーム(12)の少なくとも1つの加工変数を決定する一環として、前記局所的熱伝導率(k)又は局所的拡散率(D)に加えて考慮する工程、又は
前記第1の加熱処理の後に前記塗布層(8)の局所的厚さ(d)を判定し、該局所的厚さ(d)を、少なくとも、前記局所的熱伝導率(k)又は局所的拡散率(D)を判定する一環として、又は、前記第2の区域(11)加熱に関わる加工ビーム(12)の少なくとも1つの加工変数を決定する一環として、前記局所的熱伝導率(k)又は局所的拡散率(D)に加えて考慮する工程を含む、請求項1〜6のいずれか1項に記載の運転方法。 - 前記局所的厚さ(d)の判定後であって次の加熱処理の前に、前記局所的厚さ(d)のバラツキを均す目的で均し工程を実行する、請求項7に記載の運転方法。
- 局所的熱容量(c)も判定し、該局所的熱容量(c)を、前記第2の区域(11)の加熱に関わる加工ビーム(12)の少なくとも1つの加工変数を決定する一環として考慮する、請求項1〜8のいずれか1項に記載の運転方法。
- 加工ビーム(12)の前記加工変数として、加工ビーム(12)の出力、加工ビーム(12)を前記塗布層(8)の上で移動させる送り速度、加工ビーム(12)の出力の変調、及び加工ビーム(12)のフォーカス変数の少なくとも1つを使用する、請求項1〜9のいずれか1項に記載の運転方法。
- 前記検出装置(3)によって検出する前に前記温度プロファイルをスペクトルでフィルタにかけることにより、加工ビーム(12)そのものを前記温度プロファイル内でマスクする、請求項1〜10のいずれか1項に記載の運転方法。
- 前記検出装置(3)としてサーモグラフィー検出装置を使用する、請求項1〜11のいずれか1項に記載の運転方法。
- 付加製造装置の制御装置(4)のためのコンピュータプログラムであって、
前記制御装置(4)により実行される機械語(6)を用いて構成され、
前記制御装置(4)が該機械語(6)を実行することにより、当該制御装置(4)が、請求項1〜12のいずれか1項に記載の運転方法に従い前記付加製造装置を作動させる、コンピュータプログラム。 - 付加製造装置の制御装置であって、
請求項13に記載のコンピュータプログラム(5)によりプログラミングされ、運転中の前記付加製造装置を請求項1〜12のいずれか1項に記載の運転方法により作動させる、制御装置。 - 下地の上に粉末(9)の層(8)を塗布する塗装装置(1)と、
該塗布層(8)の区域(10,11)を局所的に加熱する加工ビーム(12)を発生する加工ビーム発生装置(2)と、
前記塗布層(8)の温度プロファイルを検出する検出装置(3)と、
請求項14に記載の制御装置(4)とを有する、付加製造装置。
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EP17156500.5 | 2017-02-16 | ||
EP17156500.5A EP3363562A1 (de) | 2017-02-16 | 2017-02-16 | Verbesserte additive fertigung |
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EP3598467A1 (en) | 2018-07-10 | 2020-01-22 | Creative Coatings Co., Ltd. | Electronic component manufacturing method and apparatus |
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JP6887896B2 (ja) * | 2017-06-28 | 2021-06-16 | 日本電子株式会社 | 3次元積層造形装置 |
EP3656489A1 (de) * | 2018-11-22 | 2020-05-27 | Siemens Aktiengesellschaft | Regelungsverfahren für die additive herstellung |
EP3656490A1 (de) * | 2018-11-22 | 2020-05-27 | Siemens Aktiengesellschaft | Verfahren zum bereitstellen von daten für eine adaptive temperaturregelung |
EP3984721A1 (de) * | 2020-10-15 | 2022-04-20 | Ivoclar Vivadent AG | Verfahren zur prozessteuerung eines 3d-stereolithographie-prozesses |
NL2028668B1 (en) * | 2021-07-08 | 2023-01-16 | Additive Ind Bv | An apparatus and method for producing an object by means of additive manufacturing |
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US10668536B2 (en) | 2020-06-02 |
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