JP2019001171A - 選択的に粒子状物質を結合するための方法及び機器 - Google Patents
選択的に粒子状物質を結合するための方法及び機器 Download PDFInfo
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Abstract
【解決手段】方法は、堆積装置を用いて部分土台の面上に粒子状物質のレイヤーを提供する工程;放射線を供給してレイヤーの一部を焼結する工程;堆積装置を用いて、前回提供レイヤーの上層に上層追加レイヤーを提供する工程;放射線を供給して上層追加レイヤー内の別部分を焼結し、別部分を前回提供レイヤーの前回焼結した一部に焼結させる工程;第3及び第4工程を連続的に繰り返して三次元オブジェクトを造形する工程を含む。1以上のレイヤーが、各レイヤーの物質の一部の焼結前及びこの焼結とは独立して放射線ヒーターにより予熱される。放射線ヒーターが、粒子状物質堆積装置から離間して設けられると共に、堆積された粒子状物質に放射線を介して熱を伝達するために粒子状物質堆積装置に追随して部分土台の面の上方を横切るように構成される。
【選択図】図9
Description
(i)部分土台に粒子状物質のレイヤーを提供する工程;
(ii)放射線を供給して前記レイヤーの前記物質の一部を焼結する工程;
(iii)前回焼結した前記物質の一部を含む粒子状物質の前回レイヤーの上層に粒子状物質の追加レイヤーを提供する工程;
(iv)放射線を供給して上層の前記追加レイヤー内の物質の別部分を焼結し、前記別部分を前記前回レイヤーの前記前回焼結した物質の一部に焼結する工程;
(v)工程(iii)及び(iv)を連続的に繰り返して三次元オブジェクトを造形する工程を含み、
前記粒子状物質のレイヤーの少なくとも幾つかが、各レイヤーの前記物質の一部の焼結前にヒーターにより予熱され、前記ヒーターが、前記粒子状物質に対し、近接して動くように構成される。
前記レイヤーの選択された表面部分に亘り工程(ii)で供給される放射線の吸収を変化させて前記レイヤーの物質の一部を焼結する工程;及び
前記追加レイヤーの選択された表面部分に亘り工程(iv)で供給される放射線の吸収を変化させて、上層の前記追加レイヤー内の物質の別部分を焼結し、また前記別部分を前記前回レイヤーの前記前回焼結した物質の一部に焼結する工程を制御するように構成される。
本発明の実施形態の様々な実施例のより良い理解のために、ここで例示のためのみに添付図面を参照する。
Claims (14)
- 粒子状物質を選択的に結合する方法であって、
(i)粒子状物質堆積装置を用いて部分土台の面上に粒子状物質のレイヤーを提供する工程;
(ii)放射線を供給して前記レイヤーの前記物質の一部を焼結する工程;
(iii)粒子状物質堆積装置を用いて、前回焼結した前記物質の一部を含む粒子状物質の前回提供レイヤーの上層に粒子状物質の上層追加レイヤーを提供する工程;
(iv)放射線を供給して前記上層追加レイヤー内の物質の別部分を焼結し、前記別部分を前記前回提供レイヤーの前記前回焼結した前記物質の一部に焼結させる工程;
(v)工程(iii)及び(iv)を連続的に繰り返して三次元オブジェクトを造形する工程を含み、
前記粒子状物質の1以上のレイヤーが、各レイヤーの前記物質の一部の焼結前及びこの焼結とは独立して放射線ヒーターにより予熱され、
前記放射線ヒーターが、前記粒子状物質堆積装置から離間して設けられると共に、堆積された粒子状物質に放射線を介して熱を伝達するために前記粒子状物質堆積装置に追随して前記部分土台の面の上方を横切るように構成される、方法。 - 粒子状物質から100mm内で前記放射線ヒーターを動かすことを更に含む、請求項1に記載の方法。
- 前記放射線ヒーターが、前記粒子状物質のレイヤーの少なくとも幾つかを加熱するように構成され、粒子状物質の少なくとも一つの下層のレイヤーがカールする温度まで冷却されることを阻止する、請求項1又は2に記載の方法。
- 前記放射線ヒーターが、焼結を開始させる放射線を供給するための放射線源のピーク波長とは異なるピーク波長を有する範囲の波長を放射する、請求項1乃至3のいずれか一項に記載の方法。
- 前記粒子状物質のレイヤーが、前記放射線ヒーターのみにより実質的に予熱される、請求項1乃至4のいずれか一項に記載の方法。
- 前記放射線を供給するための放射線源が前記放射線ヒーターとは異なる、請求項1乃至5のいずれか一項に記載の方法。
- 前記レイヤーの選択された表面部分に亘り工程(ii)で供給される放射線の吸収を変化させて前記レイヤーの前記物質の一部を焼結する工程;及び
前記上層追加レイヤーの選択された表面部分に亘り工程(iv)で供給される放射線の吸収を変化させて、前記上層追加レイヤー内の物質の別部分を焼結し、また前記別部分を前記前回提供レイヤーの前記前回焼結した物質の一部に焼結する工程を更に含む、請求項1乃至6のいずれか一項に記載の方法。 - 放射線吸収の変化は、前記レイヤー及び前記上層追加レイヤーの各々の前記選択された表面部分に亘りある量の放射線吸収物質を供給することにより達成される、請求項7に記載の方法。
- 前記放射線吸収物質が印刷ヘッドにより供給され、前記印刷ヘッドが、前記放射線吸収物質の温度を制御するための関連の熱制御装置を含む、請求項8に記載の方法。
- プロセッサにより実行される時、請求項1乃至9のいずれか一項に記載の方法の実行を生じさせる指令がエンコードされた非一時的コンピューター読み取り可能記憶媒体。
- コンピューター上で実行される時、請求項1乃至9のいずれか一項に記載の方法を実行するコンピュータープログラム。
- 粒子状物質を選択的に結合するための機器であって、コントローラーを備え、当該コントローラーが、
(i)粒子状物質堆積装置を用いて部分土台の面上に粒子状物質のレイヤーを提供することを制御し;
(ii)前記レイヤーの前記物質の一部を焼結するべく放射線を供給することを制御し;
(iii)粒子状物質堆積装置を用いて、前回焼結した前記物質の一部を含む粒子状物質の前回提供レイヤーの上層である粒子状物質の上層追加レイヤーを前記部分土台上に提供することを制御し;
(iv)前記上層追加レイヤー内の物質の別部分を焼結し、また前記別部分を前記前回提供レイヤーの前記前回焼結した前記物質の一部に焼結するべく、放射線を供給することを制御し;
(v)三次元オブジェクトを造形するべく工程(iii)及び(iv)を連続的に繰り返すように制御するように構成され、
前記粒子状物質の1以上のレイヤーが、各レイヤーの前記物質の一部の焼結前及びこの焼結とは独立して放射線ヒーターにより予熱され、
前記放射線ヒーターが、前記粒子状物質堆積装置から離間して設けられると共に、堆積された粒子状物質に放射線を介して熱を伝達するために前記粒子状物質堆積装置に追随して前記部分土台の面の上方を横切るように構成される、機器。 - 前記コントローラーは、請求項2乃至9の1つ以上の方法の実行を生じさせるように更に構成される、請求項12に記載の機器。
- 粒子状物質堆積装置;
工程(ii)及び/又は工程(iv)における焼結を提供するための放射線源;
放射線ヒーター;及び
各レイヤーの選択された表面部分に亘り工程(ii)及び/又は工程(iv)で提供される放射線の吸収を変化させるために放射線吸収材料を提供するように構成された印刷ヘッドから成る群から選択された1つ以上のものを更に備える、請求項12又は13に記載の機器。
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JP6784730B2 (ja) | 2020-11-11 |
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ZA201400857B (en) | 2015-11-25 |
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GB2493398A (en) | 2013-02-06 |
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