JP5431576B2 - 選択的堆積造形のための組成物および方法 - Google Patents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
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- B32B38/00—Ancillary operations in connection with laminating processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
- B29C64/10—Processes of additive manufacturing
- B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
- B29C64/112—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using individual droplets, e.g. from jetting heads
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C64/40—Structures for supporting 3D objects during manufacture and intended to be sacrificed after completion thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29C71/0009—After-treatment of articles without altering their shape; Apparatus therefor using liquids, e.g. solvents, swelling agents
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- B33Y70/00—Materials specially adapted for additive manufacturing
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Description
図1は、本発明のある実施の形態によるSDM装置10の概念図である。SDM装置10は、構築環境12において支持構造46上に三次元物体44が構築されることを示す。物体44および支持構造46は、図1において通常空気圧または水圧シリンダを有するが、さらなる実施の形態において構築プラットフォームを上げ下げする任意の作動装置を有してもよい、任意の従来の作動装置16により垂直に正確に配置できる構築プラットフォーム14上に積層態様で構築される。
次に本発明の構築材料について見ると、構築材料は、構築炭化水素ワックスおよび少なくとも1つの構築粘性調整剤(粘着付与剤としても知られる)を含む。本発明のいくつかの実施の形態において、構築材料が供給装置を介して適切に供給されるために、構築材料は、80℃で約11から約14センチポアズ(約11から約14mPa/s)の粘性、またはより好ましくは80℃で約12から約13センチポアズ(約12から約13mPa/s)の粘性を示す。いくつかの実施の形態の構築材料はまた、約65℃から約85℃の溶融温度を示す。
次に本発明の支持材料について見ると、支持材料は、支持炭化水素アルコールワックスおよび少なくとも1つの支持粘性調整剤を含む。本発明のいくつかの実施の形態において、支持材料が供給装置を介して適切に供給されるために、支持材料は、80℃で約11から約14センチポアズ(約11から約14mPa/s)の粘性、またはより好ましくは80℃で約12から約13センチポアズ(約12から約13mPa/s)の粘性を示す。
SDM装置により三次元物体が製造された後、物体を囲む支持材料から取り外されなければならない。したがって、支持材料から三次元物体を分離する方法が提供される。この方法は、通常はまだプラットフォームに連結されている間に、SDM装置から三次元物体および支持材料を取り出し、構築物およびプラットフォームを極性溶媒中に配置する工程を含む。三次元物体の構築材料は非極性材料であるので、通常は極性溶媒により影響を受けない。しかしながら、支持材料は極性材料であるので、極性溶媒は、支持材料を崩壊させ構築材料から分離する。浴槽は、支持材料の除去を促進するために溶媒を攪拌する攪拌装置を含んでもよく、浴槽の温度は、約35℃から約50℃、またはより好ましくは約42℃から約50℃の間に制御され、同じく支持材料の除去を促進する。この方法を使用すると、宝石のパーツのような比較的小さいパーツを、約15〜30分間で洗浄できる。
12 構築環境
14 構築プラットフォーム
18 レールシステム
20 トロリー
22 構築材料
24 供給装置
44 三次元物体
46 支持構造
48 支持材料
49 リザーバ
50 リザーバ
Claims (9)
- 選択的堆積造形装置により三次元物体を製造するために使用される組成物の組合せにおいて、該組合せが:
(a)構築材料であって:
(i)構築材料の75質量%から85質量%を構成する、約70℃から約80℃の溶融温度を示す構築炭化水素ワックス材料と、
(ii)構築材料の15質量%から25質量%を構成する、約90℃から約145℃の軟化温度を示し、酸素を含まない炭化水素樹脂を含む少なくとも1つの構築粘性調整剤と、
を含み、80℃で約11から約14センチポアズ(約11から約14mPa/s)の粘性を示し、約65℃から約85℃の溶融温度を示す構築材料、および
(b)支持材料であって:
(i)支持材料の60質量%から68質量%を構成する、約52℃から約65℃の溶融温度を示す支持炭化水素アルコールワックス材料と、
(ii)支持材料の32質量%から40質量%を構成する、約60から約200酸価を有する水素化ロジンを含む少なくとも1つの支持粘性調整剤と、
を含み、80℃で約11から約14センチポアズ(約11から約14mPa/s)の粘性を示す支持材料、
を有してなることを特徴とする組成物の組合せ。 - 前記構築炭化水素ワックス材料が、パラフィンワックスを含むことを特徴とする請求項1記載の組成物の組合せ。
- 前記構築粘性調整剤が、約115℃から約125℃の軟化温度を示すことを特徴とする請求項1記載の組成物の組合せ。
- 前記構築粘性調整剤が、水素化炭化水素樹脂を含むことを特徴とする請求項1記載の組成物の組合せ。
- 前記構築炭化水素ワックス材料が前記構築材料の約81質量%を構成し、前記構築粘性調整剤が前記構築材料の約19質量%を構成することを特徴とする請求項1記載の組成物の組合せ。
- 前記支持炭化水素アルコールワックス材料が、オクタデカノールおよびヘキサデカノールの内の少なくとも一方を含むことを特徴とする請求項1記載の組成物の組合せ。
- 前記支持粘性調整剤が、約120酸価を有する水素化ロジンを含むことを特徴とする請求項1記載の組成物の組合せ。
- 前記支持炭化水素ワックス材料が前記支持材料の約65質量%を構成し、前記支持粘性調整剤が前記支持材料の約35質量%を構成することを特徴とする請求項1記載の組成物の組合せ。
- 前記構築材料が約80℃で約12センチポアズ(約12mPa/s)の粘性を示し、前記支持材料が約80℃で約12.5センチポアズ(約12.5mPa/s)の粘性を示すことを特徴とする請求項1記載の組成物の組合せ。
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PCT/US2010/034299 WO2010132392A2 (en) | 2009-05-12 | 2010-05-11 | Compositions and methods for selective deposition modeling |
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