JP4691680B2 - 粒子材料を結合させるための方法及び装置 - Google Patents
粒子材料を結合させるための方法及び装置 Download PDFInfo
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- JP4691680B2 JP4691680B2 JP2006521645A JP2006521645A JP4691680B2 JP 4691680 B2 JP4691680 B2 JP 4691680B2 JP 2006521645 A JP2006521645 A JP 2006521645A JP 2006521645 A JP2006521645 A JP 2006521645A JP 4691680 B2 JP4691680 B2 JP 4691680B2
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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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/02—Moulding by agglomerating
- B29C67/04—Sintering
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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
- B29C64/141—Processes of additive manufacturing using only solid materials
- B29C64/153—Processes of additive manufacturing using only solid materials using layers of powder being selectively joined, e.g. by selective laser sintering or melting
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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
- B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
- B29C67/02—Moulding by agglomerating
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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
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/0288—Controlling heating or curing of polymers during moulding, e.g. by measuring temperatures or properties of the polymer and regulating the process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/0005—Condition, form or state of moulded material or of the material to be shaped containing compounding ingredients
- B29K2105/0047—Agents changing thermal characteristics
- B29K2105/005—Heat sensitisers or absorbers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/16—Fillers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0018—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds having particular optical properties, e.g. fluorescent or phosphorescent
- B29K2995/003—Reflective
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
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- Engineering & Computer Science (AREA)
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Chemical & Material Sciences (AREA)
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- Manufacturing & Machinery (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Description
(i)粒子材料(からなる)層を設ける工程と、
(ii)粒子材料層に対して放射線を供給する工程と、
(iii)粒子材料層の粒子材料の一部を結合させるため、粒子材料層の選択した表面部分にわたって、供給される放射線の吸収を変える工程とを含む方法が提供される。
第1及び第2実施形態と似ており、これらに対応する構成要素には対応する参照番号が与えられる。この実施形態において、コントローラCは、源12が供給した放射線を選択的に方向変え、これにより、層10の表面部分にわたる放射線強度入射を変えるように構成される。放射線の選択的方向変えは、コントローラCを用いて、複数の鏡34を制御することにより実現される。鏡34は、デジタルミラーデバイス(DMD)36を形成する。各鏡34は、放射線が層10の表面部分上へと完全に方向変えされる動作位置へと、又は放射線が該表面部分から離れる方向へと十分に変更される非動作位置へとコントローラによって調整可能である。鏡34のアレイ(配列)を設けることにより、層10の表面部分は、後述するような区分(セグメント)のアレイへと有効に分けられ得る。また、各区分への放射線入射の強度は、個々の鏡34が動作位置と非動作位置との間を移動する周波数を選択的に変更することにより、ビットマップイメージに従って変えることができる。
12 放射線源
14 オブスキューラ
16 放射線透過基材
18 放射線反射性材料
20 結合部分
22 非結合部分
24 中央部分
26 縁部分
28 モーター
30 印刷ヘッド
C コントローラ
Claims (17)
- 粒子材料を選択的に焼結させる方法であって、
(i)粒子材料層を設ける工程と、
(ii)粒子材料層の選択した表面部分にわたって、供給される放射線の吸収を変えて、粒子材料層の粒子材料の一部を焼結させる工程と、
(iii)以前に焼結した材料部分を含む先行する粒子材料層上に重なる更なる粒子材料層を設ける工程と、
(iv)前記重なる更なる粒子材料層の選択した表面部分にわたって、供給される放射線の吸収を変えて、該更なる粒子材料層における粒子材料の更なる一部を焼結させると共に、該更なる一部を、前記先行する粒子材料層の以前に焼結した材料部分と一体に焼結させる工程と、
(v)工程(iii)と(iv)を連続的に繰り返して三次元オブジェクトを形成する工程とを含み、
工程(ii)及び(iv)における放射線吸収の変化は、前記先行する粒子材料層及び前記更なる粒子材料層それぞれの前記選択した表面部分に対し、ある量の放射線吸収性材料を供給することによって得られる方法。 - 前記工程(ii)及び(iv)は、前記選択した表面部分の第1領域に第1レベルの放射線吸収を与えると共に、該選択した表面部分における該第1領域に隣接する第2領域に異なる第2レベルの放射線吸収を与える工程を含む請求項1に従う方法。
- 前記工程(ii)及び(iv)は、前記選択した表面部分における第2領域に隣接する第3領域に異なる第3レベルの放射線吸収を与える工程を含む請求項2に従う方法。
- 前記工程(i)は、粒子材料層の前記第1領域に第1の粒子材料を設けると共に、第2領域に異なる第2の粒子材料を設ける工程を含む請求項2又は3に従う方法。
- 粒子材料が焼結されるべき結合領域に放射線を供給する工程を含み、該結合領域は、中央部分と縁部分とを含み、工程(ii)及び(iv)は、縁部分に中央部分よりも多い放射線吸収を与える工程を含む請求項1に従う方法。
- 前記放射線の吸収は、中央部分での最小値から縁部分での最大値へと増加する請求項5に従う方法。
- 前記放射線を供給する工程は、前記結合領域に隣接しかつ結合領域の外側にある非結合領域に放射線を供給する工程を含み、前記工程(ii)及び(iv)は、非結合領域に対する放射線の吸収が結合領域の縁部分に対する放射線の吸収よりも少ないように、供給される放射線の吸収を変える工程を含む請求項5又は6に従う方法。
- 前記非結合領域に対する放射線の吸収は、結合領域の中央部分に対する放射線の吸収よりも少ない請求項7に従う方法。
- 前記工程(ii)及び(iv)は、前記選択した表面部分の表面領域を区分のアレイへと論理的に分ける工程と、該アレイの異なる区分に異なるレベルの放射線吸収を与える工程とを含む請求項1〜8のいずれか一に従う方法。
- 前記工程(ii)及び(iv)は、前記表面領域を複数の区分に分けるビットマップイメージを作り出す工程を含む請求項9に従う方法。
- 前記工程(ii)及び(iv)は、前記選択した表面部分の第1領域上に第1波長の放射線を吸収するための放射線吸収材料を設ける工程と、該選択した表面部分の第2領域上に異なる第2波長の放射線を吸収するための放射線吸収材料を設ける工程とを含む請求項1〜10のいずれか一に従う方法。
- 当該方法は、前記第1領域の粒子材料を結合させるために粒子材料層に対して第1波長を有する放射線を供給する工程と、前記第2領域の粒子材料を結合させるために粒子材料層に対して第2波長を有する放射線を供給する工程とを含む請求項11に従う方法。
- 前記工程(ii)及び(iv)は、前記選択した表面部分上に放射線吸収材料を印刷することにより、粒子材料層の選択した表面部分上にわたって、変化する量の放射線吸収材料を設ける工程を含む請求項1〜12のいずれか一に従う方法。
- 粒子材料を焼結させるための装置であって、
印刷ヘッドと、放射線に対する粒子材料層の表面部分の露出を可能にするためのコントローラとを備え、
前記印刷ヘッドは放射線吸収材料を含み、
前記コントローラは、前記印刷ヘッドを制御して粒子材料層に対しある量の放射線吸収材料を堆積させることにより、前記表面部分にわたる放射線吸収の変化を制御するように構成される装置。 - 前記コントローラは、前記表面部分にわたる温度変化に応答し、該温度変化に応じて、ある量の放射線吸収材料の堆積を制御するように構成される請求項14に従う装置。
- 前記コントローラは、粒子材料層の表面部分上への異なる波長の放射線を吸収可能な異なる放射線吸収材料の直接の堆積を制御すると共に、異なる波長の放射線に対する該表面部分の露出を可能にするように構成される請求項14に従う装置。
- 粒子材料を選択的に焼結させる方法であって、
(i)粒子材料層を設ける工程と、
(ii)粒子材料層に対して放射線を供給する工程と、
(iii)粒子材料層の選択した表面部分にわたって、供給される放射線の吸収を変えて、粒子材料層の粒子材料の一部を焼結させる工程と、
(iv)以前に焼結した材料部分を含む先行する粒子材料層上に重なる更なる粒子材料層を設ける工程と、
(v)工程(ii)と(iii)を繰り返して、前記重なる更なる粒子材料層における粒子材料の更なる一部を焼結させると共に、該更なる一部を、前記先行する粒子材料層の以前に焼結した材料部分と一体に焼結させる工程と、
(vi)工程(iv)と(v)を連続的に繰り返して三次元オブジェクトを形成する工程とを含み、
前記工程(iii)は、粒子材料層の選択した表面部分上にある量の放射線吸収材料を設けることにより、粒子材料層の選択した表面部分にわたって該粒子材料での放射線吸収を変える工程を含む方法。
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GB0317387.9 | 2003-07-25 | ||
GBGB0317387.9A GB0317387D0 (en) | 2003-07-25 | 2003-07-25 | Method and apparatus for combining particulate material |
PCT/GB2004/003142 WO2005011959A1 (en) | 2003-07-25 | 2004-07-20 | Method and apparatus for combining particulate material |
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JP2007533480A JP2007533480A (ja) | 2007-11-22 |
JP4691680B2 true JP4691680B2 (ja) | 2011-06-01 |
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US (2) | US7879282B2 (ja) |
EP (1) | EP1648686B2 (ja) |
JP (1) | JP4691680B2 (ja) |
AT (1) | ATE450361T1 (ja) |
DE (1) | DE602004024403D1 (ja) |
GB (1) | GB0317387D0 (ja) |
WO (1) | WO2005011959A1 (ja) |
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