JP5027780B2 - 積層造形装置 - Google Patents
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- 238000004519 manufacturing process Methods 0.000 title claims description 47
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 10
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- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
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- 229910052751 metal Inorganic materials 0.000 description 3
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
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Description
2 光学機器
3 加工機
8 粉末
9 硬化層
10 造形部
11 ベース
12 昇降枠
15 粉末供給部
L 光ビーム
Claims (22)
- 無機質あるいは有機質の粉末材料の層を形成する粉末層形成手段と、上記粉末層の所定箇所に光ビームを照射して該当個所の粉末を焼結または溶融固化させて硬化層を形成する光学機器とを備えて、粉末層形成手段による粉末層の形成と、光学機器による硬化層の形成とを繰り返すことで複数の硬化層が積層一体化された三次元造形物を製造する積層造形装置であって、上記粉末層及び上記硬化層がその上面側に形成されるベースと、固定されている該ベースの外周を囲んでいるとともに該ベースに対して上下移動自在な昇降枠と、該昇降枠を上下に移動させる昇降駆動手段とを備えて、上記粉末層は上記昇降枠の内周面で囲まれた前記ベース上方空間に形成されるものであり、
前記粉末層形成手段は、前記昇降枠の上面に沿ってスライド自在なスライドプレートに設けた粉末材料供給口から上記ベース上面と上記昇降枠とで囲まれる空間に粉末を供給するものとして設けられているとともに、上記粉末材料供給口を開閉するカバーを備えていることを特徴とする積層造形装置。 - 無機質あるいは有機質の粉末材料の層を形成する粉末層形成手段と、上記粉末層の所定箇所に光ビームを照射して該当個所の粉末を焼結または溶融固化させて硬化層を形成する光学機器と、切削除去加工用の加工機とを備えて、粉末層形成手段による粉末層の形成と、光学機器による硬化層の形成とを繰り返すことで複数の硬化層が積層一体化された三次元造形物を製造するとともに上記繰り返しの間に上記加工機による切削除去加工をそれまでに積層一体化された三次元造形物の表面に対して行う積層造形装置であって、上記粉末層及び上記硬化層がその上面側に形成されるベースと、該ベースの外周を囲んでいるとともに該ベースに対して上下移動自在な昇降枠と、該昇降枠を上下に移動させる昇降駆動手段とを備え、少なくとも3軸制御可能な数値制御工作機械である上記加工機におけるテーブルに上記ベースが固定されて、上記粉末層は上記昇降枠の内周面で囲まれた前記ベース上方空間に形成されるものであり、
前記粉末層形成手段は、前記昇降枠の上面に沿ってスライド自在なスライドプレートに設けた粉末材料供給口から上記ベース上面と上記昇降枠とで囲まれる空間に粉末を供給するものとして設けられているとともに、上記粉末材料供給口を開閉するカバーを備えていることを特徴とする積層造形装置。 - 上記スライドプレートのスライド方向と直交する方向における上記粉末材料供給口の幅が同方向における上記ベースの幅よりも大であることを特徴とする請求項1または2記載の積層造形装置。
- 上記スライドプレートは粉末の嵩密度を高めるための部材を備えていることを特徴とする請求項1〜3のいずれか1項に記載の積層造形装置。
- 上記スライドプレートは粉末層表面を均すための部材を備えていることを特徴とする請求項1〜4のいずれか1項に記載の積層造形装置。
- 上面開口に光ビームを透過するウィンドウを備え且つ下面が開放されて前記昇降枠上に配される覆い枠と、該覆い枠内に雰囲気ガスを供給する雰囲気ガス供給手段とを備えていることを特徴とする請求項1〜5のいずれか1項に記載の積層造形装置。
- 上記覆い枠の内部に供給される雰囲気ガスを旋回流とする旋回流形成手段を備えていることを特徴とする請求項6記載の積層造形装置。
- 上記覆い枠の内部空間における酸素濃度を測定する酸素濃度計を備えており、前記雰囲気ガス供給手段は上記酸素濃度計の出力に応じて雰囲気ガスの供給を行うものであることを特徴とする請求項6または7記載の積層造形装置。
- 上記覆い枠の内部空間を上下に移動するピストンを備えて、該ピストンの上下動で雰囲気ガスの給排がなされるものであることを特徴とする請求項6〜8のいずれか1項に記載の積層造形装置。
- 上記ウィンドウがfθレンズで形成されていることを特徴とする請求項6〜9のいずれか1項に記載の積層造形装置。
- 上記ウィンドウの内面を含む上記覆い枠の内面を清掃する清掃手段を備えていることを特徴とする請求項6〜10のいずれか1項に記載の積層造形装置。
- 上記清掃手段は、上記昇降枠に設けられて上記覆い枠内を上下移動するとともに回転して上記ウィンドウの内面を含む上記覆い枠の内面を清掃する清掃部材を備えたものであることを特徴とする請求項11記載の積層造形装置。
- 前記覆い枠が前記昇降枠の上面に沿ってスライド自在なものとして複数設けられているとともに、複数の覆い枠のうちのある覆い枠がベース上にある時に他の覆い枠が清掃手段によって清掃される位置にあることを特徴とする請求項11または12記載の積層造形装置。
- 前記光学機器が上記覆い枠上に設置されていることを特徴とする請求項6〜13のいずれか1項に記載の積層造形装置。
- 前記昇降枠の上面に設けられて前記光学機器からの光ビームによってマーキングがなされるマークターゲットと、このマークターゲットに付されたマーキングの位置を測定して光学機器による光ビームの照射位置の補正データを得る測定装置とを備えていることを特徴とする請求項1〜14のいずれか1項に記載の積層造形装置。
- 前記昇降枠の上面に前記光学機器からの光ビームのパワーを測定するパワー測定装置を配していることを特徴とする請求項1〜15のいずれか1項に記載の積層造形装置。
- 上面開口に光ビームを透過するウィンドウを備え且つ下面が開放されて昇降枠上に配される覆い枠と、該覆い枠内に雰囲気ガスを供給する雰囲気ガス供給手段とを備えており、前記粉末層形成手段は昇降枠の上面に沿ってスライド自在とされたスライドプレートに設けられており、上記覆い枠は上記スライドプレートの一部として設けられていることを特徴とする請求項1または2記載の積層造形装置。
- 前記昇降枠は、複数設けられている前記ベースの各外周を囲むとともに各ベースに対して上下移動自在となっており、この昇降枠の上面に沿ってスライド自在なスライドプレートを備え、前記粉末層形成手段は上記スライドプレートに設けられて上記複数のベースの上方に前記スライドプレートのスライドによって選択的に粉末層を形成するものであることを特徴とする請求項1または2記載の積層造形装置。
- 前記スライドプレートは前記加工機における工具を通すための切削用開口を備えていることを特徴とする請求項17または18記載の積層造形装置。
- 前記スライドプレートは前記ベース上の未硬化粉末を吸引除去する吸引部を備えていることを特徴とする請求項17〜19のいずれか1項に記載の積層造形装置。
- 前記スライドプレートは前記昇降枠の上面に沿って回転スライドするものであることを特徴とする請求項17〜20のいずれか1項に記載の積層造形装置。
- 前記光学機器は、光ビームの照射面からの高さ位置を可変として設けられていることを特徴とする請求項1〜21のいずれか1項に記載の積層造形装置。
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US20100006228A1 (en) | 2010-01-14 |
DE112008000027T5 (de) | 2009-06-10 |
WO2008146920A1 (ja) | 2008-12-04 |
KR100925363B1 (ko) | 2009-11-09 |
CN101541511A (zh) | 2009-09-23 |
JP4238938B2 (ja) | 2009-03-18 |
US8070474B2 (en) | 2011-12-06 |
DE202008017990U1 (de) | 2011-02-10 |
CN101541511B (zh) | 2011-12-21 |
JP2009007669A (ja) | 2009-01-15 |
KR20090035713A (ko) | 2009-04-10 |
JP2009078558A (ja) | 2009-04-16 |
DE112008000027B4 (de) | 2015-05-21 |
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