JP6869626B2 - 積層造形装置 - Google Patents
積層造形装置 Download PDFInfo
- Publication number
- JP6869626B2 JP6869626B2 JP2019107199A JP2019107199A JP6869626B2 JP 6869626 B2 JP6869626 B2 JP 6869626B2 JP 2019107199 A JP2019107199 A JP 2019107199A JP 2019107199 A JP2019107199 A JP 2019107199A JP 6869626 B2 JP6869626 B2 JP 6869626B2
- Authority
- JP
- Japan
- Prior art keywords
- sintered layer
- state
- convex portion
- unit
- sintered
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000843 powder Substances 0.000 claims description 70
- 238000000465 moulding Methods 0.000 claims description 33
- 239000000463 material Substances 0.000 claims description 31
- 238000003860 storage Methods 0.000 claims description 31
- 238000005245 sintering Methods 0.000 claims description 7
- 239000007769 metal material Substances 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 25
- 238000000034 method Methods 0.000 description 24
- 238000010586 diagram Methods 0.000 description 11
- 230000015572 biosynthetic process Effects 0.000 description 9
- 230000002950 deficient Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Images
Classifications
-
- 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
- B29C64/147—Processes of additive manufacturing using only solid materials using sheet material, e.g. laminated object manufacturing [LOM] or laminating sheet material precut to local cross sections of the 3D object
-
- 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
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/30—Process control
- B22F10/38—Process control to achieve specific product aspects, e.g. surface smoothness, density, porosity or hollow structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/80—Data acquisition or data processing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/80—Data acquisition or data processing
- B22F10/85—Data acquisition or data processing for controlling or regulating additive manufacturing processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F12/00—Apparatus or devices specially adapted for additive manufacturing; Auxiliary means for additive manufacturing; Combinations of additive manufacturing apparatus or devices with other processing apparatus or devices
- B22F12/90—Means for process control, e.g. cameras or sensors
-
- 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/264—Arrangements for irradiation
- B29C64/268—Arrangements for irradiation using laser beams; using electron beams [EB]
-
- 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
- B29C64/30—Auxiliary operations or equipment
- B29C64/307—Handling of material to be used in additive manufacturing
- B29C64/343—Metering
-
- 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
- B29C64/30—Auxiliary operations or equipment
- B29C64/386—Data acquisition or data processing for additive manufacturing
- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- 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
- B33Y50/00—Data acquisition or data processing for additive manufacturing
- B33Y50/02—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
- G01B11/06—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material
- G01B11/0616—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness for measuring thickness ; e.g. of sheet material of coating
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
-
- 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/205—Means for applying layers
- B29C64/209—Heads; Nozzles
-
- 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/245—Platforms or substrates
-
- 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
- B29C64/20—Apparatus for additive manufacturing; Details thereof or accessories therefor
- B29C64/25—Housings, e.g. machine housings
-
- 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
- B29C64/30—Auxiliary operations or equipment
- B29C64/364—Conditioning of environment
- B29C64/371—Conditioning of environment using an environment other than air, e.g. inert gas
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Analytical Chemistry (AREA)
- Powder Metallurgy (AREA)
Description
前記記憶部には、焼結層の表面状態が良好である場合と不良である場合との境界であって、凸部の発生個数または焼結領域の任意の領域の単位面積当たりの発生個数のうちの少なくとも一方が閾値としてさらに記憶され、前記判定部は、予め焼結層に生じた凸部の状態と焼結層の内部状態との関係に基づいて前記閾値を算出して前記記憶部に記憶させ、前記表面状態測定部によって測定された焼結層の表面に生じた凸部の状態から、前記凸部の発生個数または前記焼結領域の任意の領域の単位面積当たりの発生個数のうちの少なくとも一方を算出して前記閾値と比較し、焼結層の内部状態の良不良に対応する焼結層の表面状態の良不良から焼結層の造形状態の良不良を判定することを特徴とする前記積層造形装置。
焼結層を形成する前に、焼結層を形成するときと同じレーザ照射条件にて第1の仮の焼結層を形成し、前記表面状態測定部は、前記第1の仮の焼結層の表面の任意の領域の単位面積当たりに生じた凸部の状態を測定し、前記判定部は、前記第1の仮の焼結層の表面の任意の領域の単位面積当たりに生じた凸部の状態と前記第1の仮の焼結層の内部状態との関係に基づき、前記閾値を算出することを特徴とする前記積層造形装置。
焼結層を形成する前に、焼結層を形成するときと同じレーザ照射条件にて同じ形状に第2の仮の焼結層を形成し、前記表面状態測定部は、前記第2の仮の焼結層の表面に生じた凸部の状態を測定し、前記判定部は、前記第2の仮の焼結層に生じた凸部の状態と前記第2の仮の焼結層の内部状態との関係に基づき、前記閾値を算出することを特徴とする前記積層造形装置。
前記判定部によって焼結層の造形状態が不良であると判定された場合、前記リコータヘッドは、次の粉末層の形成を行わないことを特徴とする前記積層造形装置。
前記判定部によって焼結層の造形状態が不良であると判定された場合、前記レーザ照射部は、前記焼結領域のうちの凸部の発生領域にレーザを再照射することを特徴とする前記積層造形装置。
前記判定部によって焼結層の造形状態が不良であると判定された場合、前記レーザ照射部は、前記焼結領域の全域にレーザを再照射することを特徴とする前記積層造形装置。
図1は、本発明の実施形態に係る積層造形装置1の構成を示した図である。図1に示すように、積層造形装置1は、テーブル2、テーブル駆動部3、粉末層形成部4、レーザ照射部5、表面状態測定部6、チャンバ11、ウインドウ12及び粉末保持壁13を有している。
次に、レーザ照射部5について説明する。図2は、レーザ照射部5の構成の概略を示した図である。
次に、粉末層形成部4のリコータヘッド42について説明する。図3は、リコータヘッド42を上方から見た斜視図である。また、図4は、リコータヘッド42を下方から見た斜視図である。
次に、表面状態測定部6について説明する。表面状態測定部6は、焼結層Sの表面に生じた凸部の状態を測定する。凸部の状態は、焼結層Sの表面のそれぞれの位置毎に基準面からの高さを計測することで測定する。この測定には、例えば、二次元レーザ変位計を利用する。
次に、積層造形装置1を制御する制御装置について説明する。図6は、制御装置の構成を示すブロック図である。
次に、記憶部761に記憶する閾値の決定方法について説明する。図7は、閾値の決定方法の流れを示すアクティビティ図である。
次に、積層造形装置1による三次元造形物の積層造形処理の流れについて説明する。図8は、積層造形装置1による積層造形処理の流れを示すアクティビティ図である。
2 :テーブル
3 :テーブル駆動部
4 :粉末層形成部
5 :レーザ照射部
6 :表面状態測定部
7 :制御装置
11 :チャンバ
12 :ウインドウ
13 :粉末保持壁
21 :ベースプレート
31 :駆動部
32 :モータ
41 :ベース台
42 :リコータヘッド
43 :駆動部
44 :モータ
51 :光源
52 :コリメータ
53 :フォーカス制御ユニット
54x :ガルバノミラー
54y :ガルバノミラー
55x :駆動部
55y :駆動部
56x :アクチュエータ
56y :アクチュエータ
61x :駆動部
61y :駆動部
62x :モータ
62y :モータ
71 :CAM装置
72 :数値制御装置
73 :表示装置
74 :粉末層形成制御部
75 :テーブル制御部
76 :測定制御部
77 :照射制御部
421 :材料収容部
422 :材料供給部
423 :材料吐出部
424 :ブレード
721 :記憶装置
722 :演算装置
723 :メモリ
761 :記憶部
762 :判定部
771x :ミラー制御部
771y :ミラー制御部
A :矢印
B :矢印
C :矢印
L :レーザ
P :粉末層
R :造形領域
S :焼結層
U :矢印
Claims (7)
- 金属の材料粉末が敷かれるテーブルと、
水平一軸方向に往復移動して前記テーブル上に材料粉末を供給するとともに平坦化して粉末層を形成するリコータヘッドと、
粉末層の所定の焼結領域にレーザを照射して材料粉末が焼結された焼結層を形成するレーザ照射部と、
所定の位置毎に所定の基準面からの高さを計測することによって焼結層の表面に生じた凸部の状態を測定する表面状態測定部と、
焼結層の内部状態が良好である場合と不良である場合との境界に対応する焼結層の表面状態が良好である場合と不良である場合との境界である凸部の状態の閾値が記憶された記憶部と、
前記表面状態測定部によって測定された凸部の状態と前記記憶部に記憶された凸部の状態の閾値とを比較し、焼結層の造形状態の良不良を判定する判定部と、
を備え、
前記記憶部には、焼結層の表面状態が良好である場合と不良である場合との境界である凸部であるかどうかを決定する前記所定の基準面からの高さとともに、凸部が発生した領域の総面積または焼結領域における凸部の占有割合のうちの少なくとも一方が閾値として記憶され、
前記判定部は、予め焼結層に生じた凸部の状態と焼結層の内部状態との関係に基づいて前記閾値を算出して前記記憶部に記憶させ、前記表面状態測定部によって測定された焼結層の表面に生じた凸部の状態から、前記凸部が発生した領域の総面積または前記焼結領域における凸部の占有割合のうちの少なくとも一方を算出して前記閾値と比較し、焼結層の内部状態の良不良に対応する焼結層の表面状態の良不良から焼結層の造形状態の良不良を判定することを特徴とする積層造形装置。 - 前記記憶部には、焼結層の表面状態が良好である場合と不良である場合との境界であって、凸部の発生個数または焼結領域の任意の領域の単位面積当たりの発生個数のうちの少なくとも一方が閾値としてさらに記憶され、
前記判定部は、予め焼結層に生じた凸部の状態と焼結層の内部状態との関係に基づいて前記閾値を算出して前記記憶部に記憶させ、前記表面状態測定部によって測定された焼結層の表面に生じた凸部の状態から、前記凸部の発生個数または前記焼結領域の任意の領域の単位面積当たりの発生個数のうちの少なくとも一方を算出して前記閾値と比較し、焼結層の内部状態の良不良に対応する焼結層の表面状態の良不良から焼結層の造形状態の良不良を判定することを特徴とする請求項1に記載の積層造形装置。 - 焼結層を形成する前に、焼結層を形成するときと同じレーザ照射条件にて第1の仮の焼結層を形成し、
前記表面状態測定部は、前記第1の仮の焼結層の表面の任意の領域の単位面積当たりに生じた凸部の状態を測定し、
前記判定部は、前記第1の仮の焼結層の表面の任意の領域の単位面積当たりに生じた凸部の状態と前記第1の仮の焼結層の内部状態との関係に基づき、前記閾値を算出することを特徴とする請求項1または請求項2に記載の積層造形装置。 - 焼結層を形成する前に、焼結層を形成するときと同じレーザ照射条件にて同じ形状に第2の仮の焼結層を形成し、
前記表面状態測定部は、前記第2の仮の焼結層の表面に生じた凸部の状態を測定し、
前記判定部は、前記第2の仮の焼結層に生じた凸部の状態と前記第2の仮の焼結層の内部状態との関係に基づき、前記閾値を算出することを特徴とする請求項1または請求項2に記載の積層造形装置。 - 前記判定部によって焼結層の造形状態が不良であると判定された場合、
前記リコータヘッドは、次の粉末層の形成を行わないことを特徴とする請求項1または請求項2に記載の積層造形装置。 - 前記判定部によって焼結層の造形状態が不良であると判定された場合、
前記レーザ照射部は、前記焼結領域のうちの凸部の発生領域にレーザを再照射することを特徴とする請求項1または請求項2に記載の積層造形装置。 - 前記判定部によって焼結層の造形状態が不良であると判定された場合、
前記レーザ照射部は、前記焼結領域の全域にレーザを再照射することを特徴とする請求項1または請求項2に記載の積層造形装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019107199A JP6869626B2 (ja) | 2019-06-07 | 2019-06-07 | 積層造形装置 |
US16/880,005 US11833746B2 (en) | 2019-06-07 | 2020-05-21 | Method for producing three-dimensional molded object and lamination molding apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019107199A JP6869626B2 (ja) | 2019-06-07 | 2019-06-07 | 積層造形装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2020200501A JP2020200501A (ja) | 2020-12-17 |
JP6869626B2 true JP6869626B2 (ja) | 2021-05-12 |
Family
ID=73651156
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2019107199A Active JP6869626B2 (ja) | 2019-06-07 | 2019-06-07 | 積層造形装置 |
Country Status (2)
Country | Link |
---|---|
US (1) | US11833746B2 (ja) |
JP (1) | JP6869626B2 (ja) |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6359316B2 (ja) * | 2014-03-31 | 2018-07-18 | 三菱重工業株式会社 | 三次元積層装置及び三次元積層方法 |
US9205691B1 (en) * | 2014-12-04 | 2015-12-08 | Xerox Corporation | System for compensating for drop volume variation between inkjets in a three-dimensional object printer |
JP6194045B1 (ja) * | 2016-03-09 | 2017-09-06 | 株式会社松浦機械製作所 | 三次元造形方法 |
EP3243636A4 (en) * | 2016-03-25 | 2018-05-02 | Technology Research Association for Future Additive Manufacturing | Three-dimensional laminate moulding device, control method for three-dimensional laminate moulding device, and control program for three-dimensional laminate moulding device |
JP2017202601A (ja) | 2016-05-10 | 2017-11-16 | コニカミノルタ株式会社 | 三次元造形装置および造形条件補正方法 |
JP6824652B2 (ja) | 2016-07-08 | 2021-02-03 | キヤノン株式会社 | 3次元造形方法、および3次元造形物の製造装置 |
JP6826201B2 (ja) * | 2017-08-08 | 2021-02-03 | 三菱重工業株式会社 | 三次元積層造形装置の施工異常検出システム、三次元積層造形装置、三次元積層造形装置の施工異常検出方法、三次元積層造形物の製造方法、及び、三次元積層造形物 |
CN110678281B (zh) * | 2017-08-08 | 2022-04-29 | 三菱重工业株式会社 | 三维层叠造形装置、三维层叠造形方法及三维层叠造形物 |
US11685990B2 (en) * | 2017-12-08 | 2023-06-27 | Applied Materials, Inc. | Textured processing chamber components and methods of manufacturing same |
-
2019
- 2019-06-07 JP JP2019107199A patent/JP6869626B2/ja active Active
-
2020
- 2020-05-21 US US16/880,005 patent/US11833746B2/en active Active
Also Published As
Publication number | Publication date |
---|---|
US11833746B2 (en) | 2023-12-05 |
JP2020200501A (ja) | 2020-12-17 |
US20200384686A1 (en) | 2020-12-10 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6353065B2 (ja) | 積層造形装置及び積層造形方法 | |
EP3689508B1 (en) | Additive manufacturing system including an imaging device | |
JP6825109B2 (ja) | 三次元積層造形装置、三次元積層造形方法、及び、三次元積層造形物 | |
CN107037126B (zh) | 用于加性制造过程的声学监测方法 | |
JP6824652B2 (ja) | 3次元造形方法、および3次元造形物の製造装置 | |
JP6733654B2 (ja) | 三次元造形物製造装置および構造物の製造方法 | |
EP2941677B1 (en) | Object production using an additive manufacturing process and quality assessment of the object | |
US9943996B2 (en) | Process planning of meniscus shapes for fabricating smooth surfaces in mask image projection based additive manufacturing | |
US20190143409A1 (en) | Methods and systems for repairing powder containment structures | |
US20180193947A1 (en) | Imaging devices for use with additive manufacturing systems and methods of monitoring and inspecting additive manufacturing components | |
US20220276043A1 (en) | Shape measuring device, system with fabricating unit and shape measuring device, and method | |
US11733678B2 (en) | Method for determining building instructions for an additive manufacturing method, method for generating a database with correction measures for controlling the process of an additive manufacturing method | |
US20190302043A1 (en) | Method and system using x-ray pinhole camera for in-situ monitoring of electron beam manufacturing process | |
TW202317360A (zh) | 積層製造程式的製作方法、積層製造方法及積層製造裝置 | |
KR102380280B1 (ko) | 선택적 레이저 소결 방식의 3d프린팅 공정 중 출력물의 불량 실시간 검출 장치 | |
JP6667972B2 (ja) | 造形物の造形方法 | |
JP6869626B2 (ja) | 積層造形装置 | |
JP6848010B2 (ja) | 積層造形装置 | |
US10376959B2 (en) | Lamination molding apparatus | |
Bae et al. | Development of Industrial SFF System using Digital Mirror System and Optimal Process | |
GB2511409A (en) | Object production and assessment |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20191114 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20201215 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210212 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20210413 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20210413 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 6869626 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |