成果報告書詳細
管理番号20140000000656
タイトル*平成25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)
公開日2014/10/29
報告書年度2013 - 2013
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
部署名ロボット・機械システム部
和文要約
英文要約Title : Advanced Laser and Processing Technology for Next-generation Materials Project (FY2010-FY2014) FY2013 Annual Report

I. Development of laser cutting technologies for CFRP; (1) Development of high-power and high-performance pulsed laser; (a) Development of technologies for pulsed laser with high-power and high-performance; 1) Development of technologies for fiber laser with pulse-control and high-performance; We have improved a beam quality of a fiber laser by optimizing pulse amplification parameters and suppression of nonlinear effects.; 2) Development of the amplifying technologies for pulsed 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. The conversion property of the nonlinear crystal was examined. Furthermore, we have developed a fiber laser module by effective amplification of a seed laser beam with a photonic crystal fiber (PCF).; We have made experiments on laser cutting of the CFRP plates with PCF lasers at Osaka University. ; (2) Development of laser cutting technologies for CFRP; (a) Development of high-speed laser cutting technologies for CFRP; We have fabricated a three-dimensional high-speed laser beam scanner with the generated harmonic laser beam combined with the fundamental laser beam. We have developed a high-speed laser processing head with a positioning unit to hold the working distance constant.; (b) Development of laser cutting and evaluating technologies for CFRP; We have obtained the basic data of laser cutting parameters of some kinds of CFRP plates to develop a high-speed laser processing technologies. We have observed the laser cutting area of the CFRP plates with a high-speed camera and a thermo- camera. The tensile strength and durability of CFRP materials fabricated at AIST and Osaka University were experimented. Obtained data of X-ray CT were useful for evaluation of the heat affected zone.; (3)Development of cutting system for CFRP with pulsed laser; We have introduced QCW fiber laser to develop a laser remote cutting system. ; II. Development of the annealing technologies of Silicon on glass surface of large area; Development of the amplifying technologies of annealing laser; We have developed a laser amplification system for Si annealing to assemble into the annealing system constructed by ULVAC, Inc.; III. Development of laser sintering technologies; We have fabricated the practical platform for laser sintering of titanium powder in a vacuum chamber, and developed the laser sintering system with pulse and QCW lasers developed by Osaka University.; IV. Investigation and evaluation, and promotion of the developed technologies; We have examined the overseas technology trends of the laser devices and the laser beam processing by discussions on committees of working groups.;
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