JP2017144484A - 付加製造におけるレーザ出力監視 - Google Patents
付加製造におけるレーザ出力監視 Download PDFInfo
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- 239000000654 additive Substances 0.000 title claims abstract description 21
- 230000000996 additive effect Effects 0.000 title claims abstract description 21
- 238000012544 monitoring process Methods 0.000 title claims abstract description 11
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
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- G—PHYSICS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
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- B22F12/90—Means for process control, e.g. cameras or sensors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/082—Scanning systems, i.e. devices involving movement of the laser beam relative to the laser head
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/34—Laser welding for purposes other than joining
- B23K26/342—Build-up welding
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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
- B29C64/20—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]
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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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- B29C64/00—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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- B29C64/393—Data acquisition or data processing for additive manufacturing for controlling or regulating additive manufacturing processes
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- G—PHYSICS
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J1/00—Photometry, e.g. photographic exposure meter
- G01J1/42—Photometry, e.g. photographic exposure meter using electric radiation detectors
- G01J1/4257—Photometry, e.g. photographic exposure meter using electric radiation detectors applied to monitoring the characteristics of a beam, e.g. laser beam, headlamp beam
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/4097—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by using design data to control NC machines, e.g. CAD/CAM
- G05B19/4099—Surface or curve machining, making 3D objects, e.g. desktop manufacturing
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- B22—CASTING; POWDER METALLURGY
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- B22F10/00—Additive manufacturing of workpieces or articles from metallic powder
- B22F10/10—Formation of a green body
- B22F10/12—Formation of a green body by photopolymerisation, e.g. stereolithography [SLA] or digital light processing [DLP]
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- B22F10/20—Direct sintering or melting
- B22F10/28—Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
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- B33Y10/00—Processes of additive manufacturing
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Abstract
【解決手段】本方法は、ビルドビームを所定の割合で分割してサンプルビームを形成し、サンプルビームをセンサに誘導する工程と、センサを使用して、サンプルビームの出力に比例する信号を生成する工程と、センサからの信号を測定して、ビルドビームの出力レベルに関するレーザ出力測定代表値を生成する工程とを含む。
【選択図】図1
Description
12 テーブル
14 粉末供給部
16 リコータ
18 オーバーフロー容器
20 ビルドプラットフォーム
22 ビルドチャンバ
24 レーザ光源
26 ビームステアリング装置
28 ハウジング
29 コリメータ
30 作業面
32 ビルド開口部
34 供給開口部
36 オーバーフロー開口部
38 アクチュエータ
40 供給容器
42 エレベータ
44 アクチュエータ
46 アクチュエータ
27 光ファイバ
52 溶融池
54 レーザ出力監視装置
56 ビームスプリッタ
58 センサ
60 エンクロージャ
Claims (10)
- ワークピース(W)を形成するための材料を選択的に溶融又は硬化させるためレーザ光源(24)で生成されるビルドビーム(B)を用いる付加製造プロセスにおけるレーザ出力監視方法であって、
ビルドビーム(B)を所定の割合で分割してサンプルビーム(S)を形成し、サンプルビーム(S)をセンサ(58)に誘導する工程と、
センサ(58)を使用して、サンプルビーム(S)の出力に比例する信号を生成する工程と、
センサ(58)からの信号を測定して、ビルドビーム(B)の出力レベルに関するレーザ出力測定代表値を生成する工程と
を含む、レーザ出力監視方法。 - ビルドビーム(B)は反射光学素子(56)を通した伝達によって分割される、請求項1に記載の方法。
- レーザ出力測定値をレーザ光源(24)の定格出力と比較する工程をさらに含む、請求項1に記載の方法。
- レーザ出力測定値に応じて、付加製造プロセスにおける少なくとも一態様を制御する工程をさらに含む、請求項1に記載の方法。
- 制御する工程は、レーザ出力測定値が1以上の所定のレーザ出力制限値を超過したことに応じて、個別の措置を行う工程を含む、請求項4に記載の方法。
- 1以上の所定のレーザ出力制限値は、レーザ出力測定値と所望のレーザ出力値との間に極大差を含む、請求項5に記載の方法。
- 制御する工程は、付加製造プロセスにおける1以上のプロセスパラメータを変更する工程を含む、請求項3に記載の方法。
- センサ(58)は固体半導体検出器を含む、請求項1に記載の方法。
- センサ(58)は光電子増倍管を含む、請求項1に記載の方法。
- ビルドチャンバ(22)と、
ビルドビーム(B)を生成するように作動するレーザ光源(24)と、
ワークピース(W)の断面層に一致するパターンにおいて、ビルドチャンバ(22)内の材料(P)を選択的に溶融又は硬化させるように、ビルドビーム(B)を誘導するように作動するビームステアリング装置(26)と、
レーザ光源(24)とビームステアリング装置(26)との間に配置され、かつビルドビーム(B)を所定の割合で分割してサンプルビーム(S)を形成するように作動するビームスプリッタ(56)と、
サンプルビーム(S)を受光するように配置され、かつサンプルビーム(S)の出力に比例する信号を生成するように作動するセンサ(58)と
を備える、ワークピース製造装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15/048,536 US20170242424A1 (en) | 2016-02-19 | 2016-02-19 | Laser power monitoring in additive manufacturing |
US15/048,536 | 2016-02-19 |
Publications (1)
Publication Number | Publication Date |
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JP2017144484A true JP2017144484A (ja) | 2017-08-24 |
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ID=58046519
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Application Number | Title | Priority Date | Filing Date |
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JP2017024577A Pending JP2017144484A (ja) | 2016-02-19 | 2017-02-14 | 付加製造におけるレーザ出力監視 |
Country Status (4)
Country | Link |
---|---|
US (1) | US20170242424A1 (ja) |
EP (1) | EP3210713A1 (ja) |
JP (1) | JP2017144484A (ja) |
CN (1) | CN107101717A (ja) |
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JP7084508B2 (ja) | 2018-06-28 | 2022-06-14 | スリーディー システムズ インコーポレーテッド | レーザ較正システムを備えた三次元プリントシステム |
US11426941B2 (en) | 2018-02-09 | 2022-08-30 | Concept Laser Gmbh | Method for calibrating at least one apparatus for additively manufacturing three-dimensional objects |
CN115142702A (zh) * | 2022-07-18 | 2022-10-04 | 华南理工大学 | 一种基于激光增材技术修复震损梁柱栓焊节点的方法 |
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CN112834032A (zh) * | 2020-12-30 | 2021-05-25 | 湖南华曙高科技有限责任公司 | 一种用于制造三维物体的激光功率实时检测方法和系统 |
CN114323595B (zh) * | 2022-01-17 | 2022-10-04 | 浙江大学 | 一种纤维复合材料增材制造设备激光性能综合测试平台 |
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JP2021502256A (ja) * | 2017-11-09 | 2021-01-28 | ゼネラル・エレクトリック・カンパニイ | 積層造形のための光学縦列監視 |
JP7130297B2 (ja) | 2017-11-09 | 2022-09-05 | ゼネラル・エレクトリック・カンパニイ | 積層造形のための光学縦列監視 |
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CN115142702A (zh) * | 2022-07-18 | 2022-10-04 | 华南理工大学 | 一种基于激光增材技术修复震损梁柱栓焊节点的方法 |
CN115142702B (zh) * | 2022-07-18 | 2023-07-18 | 华南理工大学 | 一种基于激光增材技术修复震损梁柱栓焊节点的方法 |
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US20170242424A1 (en) | 2017-08-24 |
CN107101717A (zh) | 2017-08-29 |
EP3210713A1 (en) | 2017-08-30 |
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