Effects of multiple-pulse iradiation in ultra-fast pulse laser processing studied through a newly developed visualization technique

通过新开发的可视化技术研究超快脉冲激光加工中多脉冲辐射的影响

• 批准号: 22360060
• 负责人: ITO YOSHIRO
• 金额: $ 12.23万
• 依托单位: Nagaoka University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2010
• 资助国家: 日本
• 起止时间: 2010-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22360060/
• 关键词: 特殊加工; レーザー加工; 超短パルスレーザー; 可視化; 高速度ビデオ; パルス累積効果; 超短パルス; 超硬; 加工現象; 高速度撮影; 衝撃波; レーザーアブレーション; 穴あけ加工; 薄膜

We have developed a new, high-speed video system with high time-resolution for visualizing multiple-pulse irradiation effects in ultra-fast pulse laser processing. The technique, named as high-speed laser stroboscopic videography technique, has successfully applied to observe the laser-induced phenomena during a groove and a hole drilling by a femtosecond laser on cemented tungsten carbide samples. Effects of laser pulse energy and scan speed on developments of machined futures and deposition of debris were analysed. Observed results indicate that these effects were rather complicated and demand further systematic researchs.The developed tehcnique has been successfully applied in dynamical studies on laser ablation in liquids. Effects of laser-induced cavitation bubbles on laser shock processes have been analysed. Nano-particle generation by laser ablation in liquids have been studied through the technique.

我们开发了一种具有高时间分辨率的新型高速视频系统，用于可视化超快脉冲激光加工中的多脉冲照射效果。该技术被称为高速激光频闪摄像技术，已成功应用于观察飞秒激光在硬质合金样品上钻孔和钻孔过程中的激光诱导现象。分析了激光脉冲能量和扫描速度对加工期货的发展和碎片沉积的影响。观察结果表明这些效应相当复杂，需要进一步系统研究。所开发的技术已成功应用于液体中激光烧蚀的动力学研究。分析了激光诱导空化气泡对激光冲击过程的影响。通过该技术研究了在液体中通过激光烧蚀产生纳米粒子。

项目成果

フェムト秒レーザーによる超硬材料のパーカッション加工の動的観察

飞秒激光超硬材料冲击加工动态观察

• 发表时间: 2012
• 作者: 菊地勇気; 岸野友哉; 田辺里枝; 伊藤義郎
• 通讯作者: 伊藤義郎

Deep hole drilling of cemented tungsten carbide using ultrafast laser pulses

使用超快激光脉冲对硬质合金进行深孔钻削

• 发表时间: 2011
• 作者: PHAM XUAN Khai; 田辺里枝; 伊藤義郎
• 通讯作者: 伊藤義郎

Dynamical Visualization of Laser-Induced Shock Phenomena in Liquid

液体中激光诱发冲击现象的动态可视化

• 发表时间: 2014
• 作者: R. Tanabe; T. T. P. Nguyen;Y. Ito
• 通讯作者: Y. Ito

Laser-induced periodic surface structures formed on the sidewalls of microholes trepanned by a femtosecond laser

飞秒激光在微孔侧壁上形成的激光诱导周期性表面结构

• DOI: 10.1007/s00339-012-7437-x
• 发表时间: 2013
• 作者: Khai Xuan Pham; Rie Tanabe;Yoshiro Ito
• 通讯作者: Yoshiro Ito

Development of peeling tools for micro-EDM

微细放电加工剥皮工具的开发

• DOI: 10.1016/j.cirp.2011.03.108
• 发表时间: 2011
• 影响因子: 4.1
• 作者: Rie Tanabe; Yoshiro Ito; Naotake Mohri; Takahisa Masuzawa
• 通讯作者: Takahisa Masuzawa