JP2004306612A - サーマルイメージ・フィードバックを用いた焼結 - Google Patents
サーマルイメージ・フィードバックを用いた焼結 Download PDFInfo
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- JP2004306612A JP2004306612A JP2004114924A JP2004114924A JP2004306612A JP 2004306612 A JP2004306612 A JP 2004306612A JP 2004114924 A JP2004114924 A JP 2004114924A JP 2004114924 A JP2004114924 A JP 2004114924A JP 2004306612 A JP2004306612 A JP 2004306612A
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/27—Control of temperature characterised by the use of electric means with sensing element responsive to radiation
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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
-
- 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
-
- 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
- B33Y30/00—Apparatus for additive manufacturing; Details thereof or accessories therefor
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
-
- 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
Abstract
【解決手段】 標的区域上に粉末の第1の頂部層を分配する。粉末の第1の頂部層の温度を所定の温度に加減する。標的区域にエネルギービームを方向付けて、粉末の第1の頂部層により選択した位置の粉末を融解させて第1の一体層を形成する。第1の頂部層の融解した粉末および融解していない粉末の上に粉末の第2の頂部層を分配し、同様にして、第1の一体層に結合した第2の一体層を形成する。以上を繰り返して、三次元物品を形成するように隣接した層に一体に結合した追加の層を形成する。温度加減工程で、マシンビジョン装置を用いて、粉末の現在の頂部層の多数の温度をイメージングし、標的区域の上に位置する区画化された放射放熱器からの放射放熱出力を調節することによりこれらの温度を調節する。
【選択図】 なし
Description
102 プロセスチャンバ
108,154 二酸化炭素レーザ
114,158 走査装置
124,126 粉末カートリッジ供給装置
130 逆回転平坦化ローラ
132,162 粉末床
150 本発明の装置
170 放射放熱装置
174 マシンビジョン装置
Claims (13)
- レーザ焼結法により三次元物品を形成する方法であって、
(a) 標的区域上に粉末の第1の頂部層を分配し、
(b) 該粉末の第1の頂部層の温度を所定の温度に加減し、
(c) 前記標的区域にエネルギービームを方向付けて、前記粉末の第1の頂部層により選択した位置の粉末を融解させて第1の一体層を形成し、
(d) 前記第1の頂部層の融解した粉末および融解していない粉末の上に粉末の第2の頂部層を分配し、
(e) 該粉末の第2の頂部層の温度を所定の温度に加減し、
(f) 前記標的区域にエネルギービームを方向付けて、前記粉末の第2の頂部層により前記第1の一体層に結合した第2の一体層を形成し、
(g) 工程(a)から(f)を繰り返して、三次元物品を形成するように隣接した層に一体に結合した追加の層を形成する、
各工程を有してなり、
前記温度加減工程が、マシンビジョン装置を用いて、粉末の現在の頂部層の多数の温度をイメージングし、前記標的区域の上に位置する区画化された放射放熱器からの放射放熱出力を調節することによりこれらの温度を調節する各工程を有してなることを特徴とする方法。 - 前記マシンビジョン装置が赤外線カメラであることを特徴とする請求項1記載の方法。
- 前記エネルギービームが二酸化炭素レーザであることを特徴とする請求項2記載の方法。
- レーザ焼結法により三次元物品を形成する方法であって、
(a) 標的区域上に粉末の第1の頂部層を分配し、
(b) 該粉末の第1の頂部層の温度を所定の温度に加減し、
(c) 前記標的区域にエネルギービームを方向付けて、前記粉末の第1の頂部層により選択した位置の粉末を融解させて第1の一体層を形成し、
(d) 前記第1の頂部層の融解した粉末および融解していない粉末の上に粉末の第2の頂部層を分配し、
(e) 該粉末の第2の頂部層の温度を所定の温度に加減し、
(f) 前記標的区域にエネルギービームを方向付けて、前記粉末の第2の頂部層により前記第1の一体層に結合した第2の一体層を形成し、
(g) 工程(a)から(f)を繰り返して、三次元物品を形成するように隣接した層に一体に結合した追加の層を形成する、
各工程を有してなり、
前記方向付け工程が、
(i) 既知の数学モデルから、製造されている部品の領域における所望の温度を予測し、
(ii) マシンビジョン装置のデジタル出力から、前記製造されている部品の領域における実際の温度を読み出し、
(iii) 前記所望の温度と実際の温度との間の差に基づいて、前記方向付け工程中のエネルギービーム出力および走査速度を調節して、前記標的区域に亘る所望の温度を達成する、
各工程を含むことを特徴とする方法。 - 前記マシンビジョン装置が赤外線カメラであることを特徴とする請求項4記載の方法。
- 前記エネルギービームが二酸化炭素レーザであることを特徴とする請求項5記載の方法。
- 粉末から部品を製造するための装置であって、
(a) アディティブ法が行われる標的区域を持つチャンバ、
(b) 前記標的区域上に粉末層を堆積させ、平坦化するための手段、
(c) 前記標的区域で前記粉末層の選択された部分を融解するための手段、
(d) 前記標的区域のxy座標に亘り温度を測定するためのマシンビジョン装置、および
(e) 前記標的区域の頂面で融解した粉末と融解していない粉末の温度を制御するように該標的区域を加熱するための放射放熱器、
を有してなることを特徴とする装置。 - 前記マシンビジョン装置が赤外線カメラであることを特徴とする請求項7記載の装置。
- 前記放射放熱器が、前記標的区域の異なる部分に異なるレベルのエネルギーを送出するための異なる区画を持つ区画化された放射放熱器であることを特徴とする請求項8記載の装置。
- 前記区画化された放射放熱器の出力が、前記区画化された放射放熱器の円周の周りで変えられることを特徴とする請求項9記載の装置。
- 前記区画化された放射放熱器の出力が、前記標的区域の中心から半径方向に変えられることを特徴とする請求項10記載の装置。
- 粉末から部品を製造するための装置であって、
(a) アディティブ法が行われる標的区域を持つチャンバ、
(b) 前記標的区域上に粉末層を堆積させ、平坦化するための手段、
(c) 前記標的区域で前記粉末層の選択された部分を融解するためのエネルギービーム、
(d) 前記標的区域のxy座標に亘り温度を測定するためのマシンビジョン装置、および
(e) 測定した温度および数学モデルから予測した所望の温度に応じて、前記エネルギービームの走査速度および出力を調節するための制御手段、
を有してなることを特徴とする装置。 - 前記マシンビジョン装置が赤外線カメラであることを特徴とする請求項12記載の装置。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US10/410,686 US6815636B2 (en) | 2003-04-09 | 2003-04-09 | Sintering using thermal image feedback |
Publications (2)
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JP2004306612A true JP2004306612A (ja) | 2004-11-04 |
JP4146385B2 JP4146385B2 (ja) | 2008-09-10 |
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JP2004114924A Expired - Lifetime JP4146385B2 (ja) | 2003-04-09 | 2004-04-09 | サーマルイメージ・フィードバックを用いた焼結 |
Country Status (4)
Country | Link |
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US (1) | US6815636B2 (ja) |
EP (1) | EP1466718B1 (ja) |
JP (1) | JP4146385B2 (ja) |
DE (1) | DE102004017769B4 (ja) |
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KR102369084B1 (ko) | 2018-02-07 | 2022-03-03 | 콘투어 (시안) 메디컬 테크놀로지 컴퍼니 리미티드 | 마스크를 기반으로 하는 구역별 예열설비 및 그 구역별 예열 방법 |
JP2021513612A (ja) * | 2018-02-07 | 2021-05-27 | カントゥォ(シーアン)メディカル テクノロジー カンパニー リミテッド | マスクによるゾーン予熱装置、及びゾーン予熱方法 |
KR20200128016A (ko) * | 2018-02-07 | 2020-11-11 | 콘투어 (시안) 메디컬 테크놀로지 컴퍼니 리미티드 | 마스크를 기반으로 하는 구역별 예열설비 및 그 구역별 예열 방법 |
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DE102004017769B4 (de) | 2008-01-03 |
JP4146385B2 (ja) | 2008-09-10 |
US6815636B2 (en) | 2004-11-09 |
US20040200816A1 (en) | 2004-10-14 |
EP1466718A3 (en) | 2009-03-18 |
DE102004017769A1 (de) | 2004-12-09 |
EP1466718A2 (en) | 2004-10-13 |
EP1466718B1 (en) | 2011-06-15 |
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