JP5701302B2 - 押し出し式デジタル製造システムにて使用する非円筒形フィラメント - Google Patents
押し出し式デジタル製造システムにて使用する非円筒形フィラメント Download PDFInfo
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- JP5701302B2 JP5701302B2 JP2012532132A JP2012532132A JP5701302B2 JP 5701302 B2 JP5701302 B2 JP 5701302B2 JP 2012532132 A JP2012532132 A JP 2012532132A JP 2012532132 A JP2012532132 A JP 2012532132A JP 5701302 B2 JP5701302 B2 JP 5701302B2
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- ribbon
- cylindrical
- liquefier
- filament
- cross
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Description
本開示は、3次元(3D)モデルを構築するための直接デジタル製造システムに関する。特に、本発明は、押し出し式デジタル製造システムにて使用するモデリングおよび支持材料などの消耗材料に関する。
(概要)
本開示の第1の態様は、押し出し式デジタル製造システムにて使用する消耗材料に関する。消耗材料は、長さと、軸方向に非対称である長さの少なくとも一部の断面プロファイルを含む。断面プロファイルは、押し出し式デジタル製造システムの非円筒形液化装置を用いた場合、同一の熱的に制限された最大体積流量で円筒形液化装置における円筒形フィラメントを用いて達成可能な応答時間より速い(例えば、少なくとも50%速い)応答時間を提供するように構成される。
本開示は、押し出し式デジタル製造システムにて使用するモデリングおよび支持材料の非円筒形フィラメント、並びに非円筒形フィラメントを製造するための方法およびシステムに関する。以下に説明するように、非円筒形フィラメントは、同一の体積流量を有する円筒形液化装置から融解して押し出される円筒形フィラメントと比較して、減少した応答時間で非円筒形液化装置から融解して押し出され得る消耗材料である。このことは、堆積精度を向上させ且つ構築時間を低減し、そのことにより3Dモデルおよび対応する支持構造体を構築するプロセス効率を増加させるのに有利である。
(等式1)
(等式2)
(等式3)
円筒形液化装置の流動抵抗と流量キャパシタンスを組み合わせることにより、円筒形液化装置の応答時間は、集中した圧力変化時定数τcに基づいて、等式4により決定してもよい。
(等式4)
(等式5)
(等式6)
(等式7)
(等式8)
(等式9)
(等式10)
(等式11)
(等式12)
(等式13)
(等式14)
(等式15)
(等式16)
(等式17)
円筒形液化装置の場合、等式17はDh=Dcに約分される。通路52が融解した材料で実質的に満たされる液化装置48などの矩形の液化装置の場合、Ae=WrTr、およびU=2(Wr+Tr)であり、水力直径Dhは等式18で表されてもよい。
(等式18)
(等式19)
(等式20)
Claims (13)
- 押し出し式デジタル製造システムと、押し出し式デジタル製造システムにて使用する消耗材料との組み合わせであって、前記消耗材料は、長さと、前記長さの少なくとも一部が非円筒形である断面プロファイルとを有するリボンフィラメントを含み、前記断面プロファイルは、2:1以上の幅対厚さの断面アスペクト比を有する矩形の幾何学的形状を有し、前記断面プロファイルは、同一の熱的に制限された最大体積流量の円筒形液化装置での円筒形フィラメントで達成可能な応答時間より少なくとも50%速い応答時間を非円筒形液化装置で提供するように、Dh<0.95√Aeである入口断面積Aeと水力直径Dhを有する押し出し式デジタル製造システムの前記非円筒形液化装置と嵌合するように構成されたことを特徴とする、組み合わせ。
- 前記断面プロファイルの前記幅は、1.0ミリメートル〜10.2ミリメートルであることを特徴とする、請求項1に記載の組み合わせ。
- 前記消耗材料は、第1面及び第2面を有するベース部と、前記ベース部の前記第1面上に配置された層とを備え、
前記ベース部と前記層とは、異なる材料によって形成されていることを特徴とする、請求項1に記載の組み合わせ。 - Dh<0.90√Aeであることを特徴とする、請求項1に記載の組み合わせ。
- 押し出し式デジタル製造システムで三次元モデルを製造するための方法であって、
消耗材料であるリボンフィラメントを押し出し式デジタル製造システムにより保持されるリボン液化装置に送出することであって、前記リボンフィラメントは、長さと、前記長さの少なくとも一部が非円筒形である断面プロファイルとを有し、
前記リボン液化装置において、前記リボンフィラメントを溶解して、溶解された消耗材料を提供することと、
前記リボン液化装置から溶解された消耗材料を押し出すことと、
前記三次元モデルの少なくとも一部を形成するために、押し出された消耗材料を層ごとに堆積することと、
同一の熱的に制限された最大体積流量の円筒形液化装置での円筒形フィラメントで達成可能な応答時間よりも50%速い、前記溶解された消耗材料を押し出すための応答時間を呈する前記リボン液化装置へ前記リボンフィラメントを送出するための駆動圧を変更することと
を含み、前記溶解された消耗材料を押し出している間に、前記呈する応答時間に一部基づいた速度にて前記リボン液化装置を移動させる、方法。 - 前記リボン液化装置から前記溶解された消耗材料を押し出すための応答時間は、前記円筒形液化装置での前記円筒形フィラメントの前記応答時間より、少なくとも2倍速いことを特徴とする、請求項5に記載の方法。
- 前記リボン液化装置から前記溶解された消耗材料を押し出すための前記応答時間は、前記円筒形液化装置での前記円筒形フィラメントの前記応答時間より、少なくとも3倍速いことを特徴とする、請求項5に記載の方法。
- 前記リボンフィラメントの断面プロファイル及び前記リボン液化装置の断面プロファイルは、各々、矩形の幾何学的形状を含むことを特徴とする、請求項5に記載の方法。
- 前記リボンフィラメントの幅対厚さの断面アスペクト比は2.5:1〜20:1であることを特徴とする、請求項8のいずれか1項に記載の方法。
- 前記断面プロファイルの前記幅は、1.0ミリメートル〜10.2ミリメートルであることを特徴とする、請求項8に記載の方法。
- 前記消耗材料は、第1面及び第2面を有するベース部と、前記ベース部の前記第1面上に配置された層とを備え、
前記ベース部と前記層とは、異なる材料によって形成されていることを特徴とする、請求項5に記載の方法。 - Dh<0.90√Aeであることを特徴とする、請求項5に記載の方法。
- 前記リボン液化装置は、弓形の断面プロファイルを有するチャンネルを備えたことを特徴とする、請求項7に記載の方法。
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US24706709P | 2009-09-30 | 2009-09-30 | |
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US12/612,333 US8221669B2 (en) | 2009-09-30 | 2009-11-04 | Method for building three-dimensional models in extrusion-based digital manufacturing systems using ribbon filaments |
PCT/US2010/049607 WO2011041166A1 (en) | 2009-09-30 | 2010-09-21 | Non-cylindrical filaments for use in extrusion-based digital manufacturing systems |
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RU2514831C2 (ru) | 2014-05-10 |
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US8221669B2 (en) | 2012-07-17 |
EP2483060B1 (en) | 2017-03-08 |
EP2483060A1 (en) | 2012-08-08 |
US20170136691A1 (en) | 2017-05-18 |
US20110076496A1 (en) | 2011-03-31 |
TW201213095A (en) | 2012-04-01 |
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US10759107B2 (en) | 2020-09-01 |
ES2627566T3 (es) | 2017-07-28 |
CA2775076C (en) | 2015-01-06 |
KR20120063538A (ko) | 2012-06-15 |
CA2775076A1 (en) | 2011-04-07 |
WO2011041166A1 (en) | 2011-04-07 |
US9586357B2 (en) | 2017-03-07 |
KR101380112B1 (ko) | 2014-04-01 |
RU2012117834A (ru) | 2013-11-10 |
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