JP4891526B2 - レーザ溶接装置 - Google Patents
レーザ溶接装置 Download PDFInfo
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- JP4891526B2 JP4891526B2 JP2004016293A JP2004016293A JP4891526B2 JP 4891526 B2 JP4891526 B2 JP 4891526B2 JP 2004016293 A JP2004016293 A JP 2004016293A JP 2004016293 A JP2004016293 A JP 2004016293A JP 4891526 B2 JP4891526 B2 JP 4891526B2
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/106—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity
- H01S3/108—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling devices placed within the cavity using non-linear optical devices, e.g. exhibiting Brillouin or Raman scattering
- H01S3/109—Frequency multiplication, e.g. harmonic generation
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- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/14—Other fabrics or articles characterised primarily by the use of particular thread materials
- D04B1/16—Other fabrics or articles characterised primarily by the use of particular thread materials synthetic threads
-
- 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
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D5/00—Formation of filaments, threads, or the like
- D01D5/28—Formation of filaments, threads, or the like while mixing different spinning solutions or melts during the spinning operation; Spinnerette packs therefor
- D01D5/30—Conjugate filaments; Spinnerette packs therefor
- D01D5/34—Core-skin structure; Spinnerette packs therefor
-
- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/22—Yarns or threads characterised by constructional features, e.g. blending, filament/fibre
- D02G3/36—Cored or coated yarns or threads
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/22—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B1/00—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B1/22—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration
- D04B1/24—Weft knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting goods of particular configuration wearing apparel
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/14—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes
- D04B21/16—Fabrics characterised by the incorporation by knitting, in one or more thread, fleece, or fabric layers, of reinforcing, binding, or decorative threads; Fabrics incorporating small auxiliary elements, e.g. for decorative purposes incorporating synthetic threads
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/20—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting articles of particular configuration
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04B—KNITTING
- D04B21/00—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes
- D04B21/20—Warp knitting processes for the production of fabrics or articles not dependent on the use of particular machines; Fabrics or articles defined by such processes specially adapted for knitting articles of particular configuration
- D04B21/207—Wearing apparel or garment blanks
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2501/00—Wearing apparel
- D10B2501/04—Outerwear; Protective garments
- D10B2501/042—Headwear
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2503/00—Domestic or personal
- D10B2503/02—Curtains
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2505/00—Industrial
- D10B2505/10—Packaging, e.g. bags
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/355—Non-linear optics characterised by the materials used
- G02F1/3551—Crystals
- G02F1/3553—Crystals having the formula MTiOYO4, where M=K, Rb, TI, NH4 or Cs and Y=P or As, e.g. KTP
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/0813—Configuration of resonator
- H01S3/0815—Configuration of resonator having 3 reflectors, e.g. V-shaped resonators
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/1601—Solid materials characterised by an active (lasing) ion
- H01S3/1603—Solid materials characterised by an active (lasing) ion rare earth
- H01S3/1611—Solid materials characterised by an active (lasing) ion rare earth neodymium
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/14—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range characterised by the material used as the active medium
- H01S3/16—Solid materials
- H01S3/163—Solid materials characterised by a crystal matrix
- H01S3/164—Solid materials characterised by a crystal matrix garnet
- H01S3/1643—YAG
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Textile Engineering (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Plasma & Fusion (AREA)
- Nonlinear Science (AREA)
- Lasers (AREA)
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Laser Beam Processing (AREA)
Description
パルスレーザ出力:10.3W @10kHz
安定性:±0.25%rms
1.74%pp
応答性:95%立ち上がり2.5秒
パルスレーザ出力:10.3W @10kHz
安定性:±0.63%rms
2.53%pp
応答性:95%立ち上がり11.5秒
パルスレーザ出力:10.2W @10kHz
安定性:±0.29%rms
2.07%pp
応答性:95%立ち上がり3.5秒
12 偏光素子
20 終端ミラー
22 高調波分離出力ミラー
24 終端ミラー
26 固体レーザ活性媒体
30 電気光学励起部
32 高調波ミラー
40 レーザ発振器
42 励起光源
44 レーザ電源部
46 制御部
50 受光素子(フォトセンサ)
52 測定回路
54 設定部
56 比較部
58 制御信号発生部
60 投入電力モニタ部
70 受光素子(フォトセンサ)
72 測定回路
74 SHGモニタ部
82 SHGモニタ部
Claims (2)
- 光学的に対向して配置された第1および第2の終端ミラーを有する光共振器と、
前記光共振器の光路上に配置された活性媒体と、
100μs以上の長さのパルス幅を有する基本周波数の基本波パルスレーザ光を生成するために前記活性媒体をポンピングする励起部と、
タイプIIの位相整合にカットされ、前記基本波パルスレーザ光の2倍の周波数を有する第2高調波のパルスレーザ光を生成するために前記光共振器の光路上に配置されたKTP結晶と、
前記光共振器の光路上に配置され、前記基本波パルスレーザ光を前記光共振器の光路上に留めて前記第2高調波のパルスレーザ光を前記光共振器の光路の外へ出力する高調波分離出力ミラーと
を具備し、
前記励起部が、前記活性媒体を光学的にポンピングするための励起光を発生する励起光発生部と、前記励起光発生部に前記励起光を発生するための電力を供給するレーザ電源部と、前記レーザ電源部より前記励起光発生部に供給される電力を制御するための制御部とを有し、
前記レーザ電源部が、直流電力を出力する直流電源部と、前記直流電源部と前記励起光発生部との間に接続されたスイッチング素子とを有し、前記基本波パルスレーザ光のパルス幅に相当する期間中に前記スイッチング素子を高周波数でスイッチング動作させてパルス波形の電力を前記励起光発生部に供給し、
前記制御部が、前記基本波パルスレーザ光のレーザ出力を測定する基本波レーザ出力測定部を有し、前記基本波レーザ出力測定部より得られるレーザ出力測定値をフィードバックして前記制御信号をパルス幅制御方式で生成し、前記パルス幅制御方式の制御信号を前記レーザ電源部に供給して前記スイッチング素子をスイッチング動作させ、
前記制御部が、前記第2高調波パルスレーザ光のレーザ出力について所望の上限値および下限値の少なくとも1つをリミット値として設定するリミット値設定部と、前記第2高調波パルスレーザ光のレーザ出力を測定する高調波レーザ出力測定部と、前記高調波レーザ出力測定部より得られるレーザ出力測定値を前記リミット値と比較する第2の比較部とを有し、前記レーザ出力測定値が前記リミット値の範囲の外へ出たときは、前記第2の比較部の比較結果に応じて前記基本波パルスレーザ光のレーザ出力に対する前記フィードバック制御にリミッタをかけ、または停止の処置をとるようにし、
前記高調波分離出力ミラーより出力された前記第2高調波のパルスレーザ光を被加工物に照射して前記被加工物を溶接する、
レーザ溶接装置。 - 前記制御部が、
前記第2高調波パルスレーザ光のレーザ出力について所望の基準値を設定する基準値設定部と、
前記第2高調波パルスレーザ光のレーザ出力を測定する高調波レーザ出力測定部と、
前記高調波レーザ出力測定部より得られるレーザ出力測定値の時間的な平均値を求めるレーザ出力平均値演算部と、
前記レーザ出力平均値演算部より得られるレーザ出力平均値と前記基準値との差分をオフセット値として求めるオフセット値演算部と
を有し、前記オフセット値にしたがって前記制御信号を補正する、
請求項1に記載のレーザ溶接装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004016293A JP4891526B2 (ja) | 2004-01-23 | 2004-01-23 | レーザ溶接装置 |
KR1020050005944A KR101185829B1 (ko) | 2004-01-23 | 2005-01-21 | 레이저 용접 장치 |
CNB2005100518327A CN100483868C (zh) | 2004-01-23 | 2005-01-21 | 谐波脉冲激光装置以及产生谐波脉冲激光光束的方法 |
EP05250338.0A EP1598907B1 (en) | 2004-01-23 | 2005-01-24 | Laser welding apparatus |
US11/039,808 US7349451B2 (en) | 2004-01-23 | 2005-01-24 | Harmonic pulse laser apparatus, and method for generating harmonic pulse laser beams |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004016293A JP4891526B2 (ja) | 2004-01-23 | 2004-01-23 | レーザ溶接装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005209965A JP2005209965A (ja) | 2005-08-04 |
JP4891526B2 true JP4891526B2 (ja) | 2012-03-07 |
Family
ID=34792473
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004016293A Expired - Fee Related JP4891526B2 (ja) | 2004-01-23 | 2004-01-23 | レーザ溶接装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7349451B2 (ja) |
EP (1) | EP1598907B1 (ja) |
JP (1) | JP4891526B2 (ja) |
KR (1) | KR101185829B1 (ja) |
CN (1) | CN100483868C (ja) |
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JP2007207856A (ja) * | 2006-01-31 | 2007-08-16 | Miyachi Technos Corp | ファイバレーザ加工装置 |
US7817690B2 (en) | 2006-02-02 | 2010-10-19 | Mitsubishi Electric Corporation | Laser generator and method of controlling the same |
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KR100819275B1 (ko) * | 2006-09-25 | 2008-04-02 | 삼성전자주식회사 | 녹색 레이저를 펌핑하기 위한 전류 구동 방법 |
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JP2008070472A (ja) * | 2006-09-12 | 2008-03-27 | Sumitomo Heavy Ind Ltd | 高調波レーザ装置及びその制御方法 |
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JP2009253068A (ja) | 2008-04-08 | 2009-10-29 | Miyachi Technos Corp | レーザ発振器及びレーザ加工装置 |
EP2501348B1 (de) * | 2009-11-18 | 2016-12-21 | WaveLight GmbH | Materialbearbeitungseinrichtung und verfahren zum betreiben einer solchen |
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JPH07273387A (ja) * | 1994-03-31 | 1995-10-20 | Fanuc Ltd | 出力波形制御方式 |
JP3265173B2 (ja) * | 1995-01-10 | 2002-03-11 | 三菱電機株式会社 | 固体レーザ装置 |
JP3098398B2 (ja) * | 1995-05-19 | 2000-10-16 | 日本電気株式会社 | ビアホール形成方法及びレーザ光照射装置 |
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JP2000340873A (ja) * | 1999-05-27 | 2000-12-08 | Toshiba Fa Syst Eng Corp | 固体レーザ装置の光出力制御方法、固体レーザ装置及びレーザ電源装置 |
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JP4580065B2 (ja) * | 2000-07-10 | 2010-11-10 | ミヤチテクノス株式会社 | レーザ溶接方法及び装置 |
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JP3753657B2 (ja) * | 2001-12-27 | 2006-03-08 | 本田技研工業株式会社 | ツインスポットパルスレーザ溶接方法および装置 |
US7088749B2 (en) * | 2003-01-06 | 2006-08-08 | Miyachi Unitek Corporation | Green welding laser |
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2004
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2005
- 2005-01-21 CN CNB2005100518327A patent/CN100483868C/zh not_active Expired - Fee Related
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- 2005-01-24 EP EP05250338.0A patent/EP1598907B1/en not_active Expired - Fee Related
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US20050163174A1 (en) | 2005-07-28 |
JP2005209965A (ja) | 2005-08-04 |
EP1598907A3 (en) | 2007-06-13 |
KR101185829B1 (ko) | 2012-10-02 |
EP1598907A2 (en) | 2005-11-23 |
US7349451B2 (en) | 2008-03-25 |
EP1598907B1 (en) | 2017-07-26 |
CN1645690A (zh) | 2005-07-27 |
CN100483868C (zh) | 2009-04-29 |
KR20050076765A (ko) | 2005-07-27 |
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