JP2021502670A - フィラメントの疲労を検出する方法、3次元物品を形成する方法、およびフィラメントの疲労を検出するデバイス - Google Patents
フィラメントの疲労を検出する方法、3次元物品を形成する方法、およびフィラメントの疲労を検出するデバイス Download PDFInfo
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Abstract
Description
Claims (15)
- 電子ビーム源における電子ビームのフィラメントの疲労を検出する方法であって、
a.ワークテーブル上の前記電子ビーム源から発するビームスポットを所定の最小サイズに拡大し、
b.カメラによって前記ワークテーブル上のビームスポットの画像を取得し、
c.前記ビームスポットの取得した前記画像を基準画像と比較し、
d.取得した前記画像が前記基準画像から所定の値よりも逸脱している場合にフィラメントの疲労を検出する、
方法。 - 前記基準画像と取得した前記画像との間の前記逸脱は、サイズ、形状、または強度のうちの1つまたは複数である、請求項1に記載の方法。
- 前記ビームスポットは、前記電子ビームをデフォーカスすることによって拡大される、請求項1または請求項2に記載の方法。
- 前記所定の最小サイズは、xxxμmである、請求項1〜請求項3のいずれか1項に記載の方法。
- e.フィラメントの疲労を検出した場合に、フィラメントを所定の温度に所定の時間加熱し、
f.a〜dを繰り返す、
ことをさらに含む、請求項1〜請求項4のいずれか1項に記載の方法。 - 電子ビーム源からの電子ビームで融着されて物品を形成する粉末材料の個々の層を連続的に堆積させることによって3次元物品を形成する方法であって、
請求項1に記載の電子ビームフィラメントの疲労を検出する方法をさらに含む、
方法。 - 前記フィラメントの疲労を検出する方法は、前記3次元物品の準備が整ったときに実行される、請求項6に記載の方法。
- 前記方法は、3次元物品のモデルを受信し、1つ以上のメモリ記憶領域内に記憶することをさらに含み、
少なくとも前記電子ビームを方向付けることは、1つ以上のコンピュータプロセッサの実行を介して行われる、
請求項1に記載の方法。 - 電子ビーム源における電子ビームフィラメントの疲労を検出する方法をコンピュータ上で実行する際に構成されるプログラム要素であって、
前記方法は、
a.ワークテーブル上の前記電子ビーム源から発するビームスポットを所定の最小サイズに拡大し、
b.カメラによって前記ワークテーブル上のビームスポットの画像を取得し、
c.前記ビームスポットの取得した前記画像を基準画像と比較し、
d.取得した前記画像が前記基準画像から所定の値よりも逸脱している場合にフィラメントの疲労を検出する、
ことを含む、
プログラム要素。 - 請求項9に記載のプログラム要素を記憶した非一時的コンピュータ可読媒体。
- 電子ビーム源における電子ビームのフィラメントの疲労を検出するデバイスであって、
a.ワークテーブル上の前記電子ビーム源から発するビームスポットを所定の最小サイズに拡大する手段と、
b.前記ワークテーブル上のビームスポットの画像を取得するカメラと、
c.前記ビームスポットの取得した前記画像を基準画像と比較する比較ユニットと、
を含み、
取得した前記画像が前記基準画像から所定の値よりも逸脱している場合にフィラメントの疲労を検出する、
デバイス。 - 前記基準画像と取得した前記画像との間の前記逸脱は、サイズ、形状、または強度のうちの1つまたは複数である、請求項11に記載のデバイス。
- 前記電子ビームの前記ビームスポットをデフォーカスする手段は、少なくとも1つのフォーカスレンズである、請求項11または請求項12に記載のデバイス。
- 前記所定の最小サイズは、xxxμmである、請求項11〜請求項13のいずれか1項に記載のデバイス。
- コンピュータ可読プログラムコード部分を含む少なくとも1つのコンピュータ可読記憶媒体を含む非一時的コンピュータプログラム製品であって、
前記コンピュータ可読プログラムコード部分は、
電子ビーム源から発するビームスポットをワークテーブル上で所定の最小サイズに拡大するように構成された実行可能部分と、
カメラによって、前記ワークテーブル上の前記ビームスポットの画像を取得するように構成された実行可能部分と、
取得した前記画像が基準画像から所定の値を超えて逸脱している場合にフィラメント疲労を検出するように構成された実行可能部分と、
を含む、
非一時的コンピュータプログラム製品。
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