JP6720346B2 - 構造物データセットにおける位置を装置の構造物造形セクションにおける位置に対して関連付ける装置および方法 - Google Patents
構造物データセットにおける位置を装置の構造物造形セクションにおける位置に対して関連付ける装置および方法 Download PDFInfo
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Description
本発明の課題は、従来技術のこれらの欠点を克服して、技術的設備を確実に制御又は操作するための改良された制御システムを提供することである。
Claims (11)
- 構造物データセットにおける位置を装置の構造物造形セクション(12)における位置に対して関連付ける装置であって、
3次元製品を造り、境界表面(104)を備える基部要素(101)を受容するように構成された構造物造形セクション(12)と、
放射線ビーム(22)を発生し、所定の走査領域(302)上を走査させるように構成された照射ユニット(18)であって、前記所定の走査領域(302)は前記基部要素(101)の前記境界表面(104)の少なくとも一部を含む、照射ユニット(18)と、
前記放射線ビーム(22)が前記所定の走査領域(302)を走査している間に、前記放射線ビーム(22)のスポット位置(13)において発せられた電磁放射線の時間依存性を有する電磁放射線強度を検出するように構成された検出ユニット(39)と、
制御器(36)であって、
検出された前記電磁放射線強度を、前記放射線ビーム(22)の現在位置を表す位置情報に対して関連付け、
検出された前記時間依存性を有する電磁放射線強度の強度変化と前記位置情報とに基づき、前記走査領域(302)に関する前記基部要素(101)の前記境界表面(104)の位置を決定し、時間に亙る急激な強度変化は、前記境界表面(104)の縁部に対応するときに識別されるようにし、且つ、
前記境界表面(104)の決定された位置に基づき、構造物データセットにおける位置を前記構造物造形セクション(12)における位置に対して関連付け、
前記構造物データセットにより定義された付加要素(103)の付加境界表面(105)の位置を、前記基部要素(101)の前記境界表面(104)の決定された位置に対して関連付けるように構成された、制御器(36)と、
を備える装置。 - 前記検出ユニット(39)は、前記放射線ビーム(22)の前記スポット位置(13)に依存する前記電磁放射線強度を検出し、前記位置情報を出力するように構成される、請求項1に記載の装置。
- 前記制御器(36)は、前記照射ユニット(18)に対して入力された放射線位置情報に基づいて前記位置情報を決定するように構成される、請求項1に記載の装置。
- 前記装置は、前記基部要素(101)上へ付加要素(103)を造るように構成され、該付加要素(103)の付加境界表面(105)は、前記構造物データセットにおける位置と前記構造物造形セクション(12)における位置との間の関連性を考慮することにより、前記基部要素(101)の前記境界表面(104)に一致する、請求項1〜3の何れか一項に記載の装置。
- 前記装置は、前記照射ユニット(18)を用いる粉末床溶融結合により、前記基部要素(101)上に前記付加要素(103)を造るように構成される、請求項4に記載の装置。
- 前記制御器(36)は、
検出された前記電磁放射線強度と関連付けられた前記位置情報とに基づき、2次元画像を作り、
画像処理を用いることにより、前記2次元画像における前記基部要素(101)の前記境界表面(104)の縁部を識別し、且つ、
識別された前記縁部に基づき、前記走査領域(302)に関する前記基部要素(101)の前記境界表面(104)の位置を決定する、
ように構成される、請求項1〜5の何れか一項に記載の装置。 - 構造物データセットにおける位置を装置の構造物造形セクション(12)における位置に対して関連付ける方法であって、
3次元製品を造るため、境界表面(104)を備える基部要素(101)を構造物造形セクション(12)内に位置決めする段階と、
放射線ビーム(22)を発生し、該放射線ビームを所定の走査領域(302)上を走査させる段階であって、前記所定の走査領域(302)は前記基部要素(101)の前記境界表面(104)の少なくとも一部を含む段階と、
前記放射線ビーム(22)が前記所定の走査領域(302)を走査している間に、前記放射線ビーム(22)のスポット位置(13)において発せられた電磁放射線の時間依存性を有する電磁放射線強度を検出する段階と、
検出された前記電磁放射線強度を、前記放射線ビーム(22)の現在位置を表す位置情報に対して関連付ける段階と、
検出された前記時間依存性を有する電磁放射線強度と前記位置情報とに基づき、前記走査領域(302)に関する前記基部要素(101)の前記境界表面(104)の位置を決定し、時間に亙る急激な強度変化は、前記境界表面(104)の縁部に対応するときに識別されるようにする段階と、
前記境界表面(104)の決定された位置に基づき、構造物データセットにおける位置を前記構造物造形セクション(12)における位置に対して関連付ける段階と、
前記構造物データセットにより定義された付加要素(103)の付加境界表面(105)の位置を、前記基部要素(101)の前記境界表面(104)の決定された位置に対して関連付ける段階と、
を備える方法。 - 前記放射線ビーム(22)は前記基部要素(101)の材料構造が影響されないほど低い強度を有する、請求項7に記載の方法。
- 前記放射線ビーム(22)は、相互に対して平行である複数本の照射ベクトル(304)を備えるパターンにて、前記所定の走査領域(302)上を走査される、請求項7又は8に記載の方法。
- 前記方法は、前記基部要素(101)上へ付加要素(103)を造る段階を更に備え、該付加要素(103)の付加境界表面(105)は、前記構造物データセットにおける位置と前記構造物造形セクション(12)における位置との間の関連性を考慮することにより、前記基部要素(101)の前記境界表面(104)に一致する、請求項7〜9の何れか一項に記載の方法。
- 前記付加要素(103)は、前記照射ユニット(18)を用いる粉末床溶融結合により、前記基部要素(101)上に造られる、請求項8〜10の何れか一項に記載の方法。
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