成果報告書詳細
管理番号20130000000394
タイトル*平成24年度中間年報 次世代素材等レーザー加工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)(H22-H24)
公開日2013/5/31
報告書年度2012 - 2012
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
部署名技術開発推進部
和文要約
英文要約Title : Advanced Laser and Processing Technology for Next-generation Materials Project (FY2010-FY2014) FY2012 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 improved a beam quality of a fiber laser by optimizing pulse amplification parameters and suppression of nonlinear effects.; 2) Development of technologies for fiber laser module; We have achieved the midterm goals of the development of a fiber laser module by effective amplification of a seed laser beam with a photonic crystal fiber.; (2) Development of the amplifying technologies of pulse laser; 1) Development of the amplifier of kilo-watt laser; We have evaluated properties of a ceramic laser power-amplifier system, and the beam propagation in the composite ceramic laser medium was analyzed with a developed simulation code.; 2) Development of the amplifying technologies of annealing laser; We have achieved the midterm goals of a laser amplification system for Si annealing by avoidance of laser damage of optical elements and by efficient amplification.; (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]; We have examined the frequency conversion property and the optical damage of a nonlinear crystal, and we have achieved the midterm goals of the development of the second harmonic generation module for annealing laser.; [The harmonic generation module for fiber laser]; High frequency conversion efficiency was obtained on the experiment of harmonic generation module for the fiber laser.; 2) Development of the technologies for harmonic generation with high efficiency; We have realized high efficient frequency conversion by new system with zigzag propagation of laser beam. Furthermore, we have evaluated the laser damage threshold of anti-reflection coating.; 3) Arrangement for experiments of laser processing of CFRP materials.; We have experimented laser cutting of the CFRP plates together with Osaka University.; As a result, simultaneous irradiation of lasers with different wavelengths is effective in CFRP cutting.; 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 fabricated a high-speed laser scanner to combine the generated harmonic laser beam with the fundamental laser beam, and have developed a high-quality, high-speed laser processing head.; 2) Development of fabricating and evaluating technologies for composite material; We have obtained the basic data of laser cutting parameters of some kinds of various CFRP plates to develop a laser high-speed processing technologies. The tensile strength and durability of CFRP materials were experimented, and the midterm goals of development of fabricating technologies were achieved.; (3) Development of laser powder molding technologies; We have fabricated the practical molding platform with a vacuum chamber, and developed the molding system with pulse and QCW lasers developed by Osaka University.; IV. Investigation and evaluation of advanced technologies to promote the spread of the developed technologies; We have examined the technologies of the laser devices and the laser beam machining by discussions on committees of working groups.;
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