成果報告書詳細
管理番号20110000001010
タイトル*平成22年度中間年報 高出力多波長複合レーザー加工基盤技術開発プロジェクト 次世代レーザー加工技術の研究開発(1)
公開日2011/10/12
報告書年度2010 - 2010
委託先名技術研究組合次世代レーザー加工技術研究所
プロジェクト番号P10006
部署名機械システム部
和文要約和文要約等以下本編抜粋:1. 研究開発の内容及び成果等 研究開発項目(2)「レーザー高品位化技術の開発」 (1)ファイバーレーザーのパルス制御・高性能化技術の開発 1) ファイバーレーザーのパルス制御技術の開発 (技術研究組合(古河電気工業)、大阪大学(接合科学研究所)) ファイバーレーザーのパルス制御技術の開発では、変調用駆動回路基板開発及び光パルス出力制御開発を進めた。パルス幅3~10ns、繰り返し周波数75kHzパルスの制御に対し、高周波回路設計の制限のためパルス幅5ns~10nsと5ns以下に分離して基板開発を進めた。
英文要約Title : High-power Pulsed Fiber Laser and Processing Technology Project (FY2010-FY2014) FY2010 Annual Report
II. Development of technologies for the advanced laser; (1) Development of technologies for pulse control of high-performance fiber laser; 1) Development of technologies for pulse control of fiber laser; We have achieved goals of first fiscal year of 3-10ns pulse generation and 100ns pulse generation using fiber laser and external modulation. We have also realized high power fiber MOPA systems of 5W and 70W output.; 2) Development of technologies for fiber laser module; Optical components for photonic crystal fiber (PCF) and amplifier, pumping laser diodes (LD), an LD power supply, a chiller, adjustment mechanical components, and a measuring instrument, etc. were provided.; (2) Development of the amplifying technologies of pulse laser; 1) Development of the amplifier of kilo-watt laser; For optimization of the composite ceramic power-amplifier, three kinds of the simulation code were evaluated and diagnostics of laser beam have been prepared.; 2) Development of the amplifying technologies of annealing laser; The booster amplification system was designed basically, and the optical layout and the system configuration were examined. The specifications such as pumping LDs, a LD power supply, and a chiller were examined.; (3) Development of the harmonic generation technologies of high power laser; 1) Development of the technologies for harmonic generation module; [The harmonic generation module for annealing laser]; An optics system design has started based on a preliminary study of harmonic generation device. The design of a beam control system has started for the annealing process.; [The harmonic generation module for fiber laser]; The conversion property of the harmonic generation device was examined by use of several ten-W laser.; 2) Development of the technologies for harmonic generation with high efficiency; A calculation code to estimate temperature dependence of the harmonic generation efficiency was developed.; III. Development of the combined laser beam machining technologies with multi-wavelength laser beams; (1) Development of laser cutting and welding technologies; 1) Development of laser cutting and welding technologies for composite material; We have designed a laser processing head to achieve high-quality, high-speed machining, and have designed a laser nozzle in the development of precisely controlled high-speed processing.; 2) Development of fabricating and evaluating technologies for composite material; A 1-kW laser system was used for optimization of CFRP machining process. Various tests of CFRP materials were performed by changing the factors that control in manufacturing processes.; (3) Development of laser powder molding technologies; We have made the small prototype platform with a vacuum chamber for sintering titanium powder. The application software was modified for sintering by the platform under vacuum condition.; IV. Investigation and evaluation of advanced technologies to promote the spread of the developed technologies; We have started the research of the technologies of the laser devices, the laser beam machining, CFRP materials, laser annealing, and laser sintering of metallic powders. The overseas technology trends were investigated on Photonics West2011 international conference and the other exhibitions.
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