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Student Influence of thickness of plasma confinement layer on laser peening using near infrared laser

Wednesday (24.06.2020)
11:38 - 11:41 Room 1
Part of:
- Poster Processing of Functional Texturing on Micro-fibers by Laser Induced Periodic Surface Structures 1 Prof. Masaki Yamaguchi
- Poster 3D microfabrication of thermoset polymer PDMS using laser-induced bubble 1 Prof. Yasutaka Hanada
- Poster *student* Laser-Peening with solid state medium as plasma confinement layer 1 Yuki Sugimoto
- Poster *student* Numerical Simulation and Test Experiments of Selective Laser Thermoregulation for Accelerated Degradation Test of SiC/SiC CMC 1 Hayato Koshiji
- Poster *student* Laser peening of sprayed ceramics film 1 Yuya Yasuyoshi
- Poster *student* Influence of thickness of plasma confinement layer on laser peening using near infrared laser 1 Hikaru Hirata
- Poster *student* Green femtosecond laser direct writing using reduction of glyoxylic acid Co/Ni complexes 1 Hikaru Nakatani
- Poster Ultrafast pulse GHz burst mode laser ablation for efficient surface microprocessing 1 Ph.D. Francesc Caballero Lucas
- Poster *student* Development of hybrid laser system with blue diode laser and single mode fiber laser for welding of pure copper 1 Shumpei Fujio
- Poster *student* High stability of frequency and robustness of noise-like pulse fiber laser 1 Hitoshi Nakano
- Poster *student* Broadband pulsed fiber laser for suppression of stimulated Brillouin scattering 1 Tetsuya Yamazaki
- Poster Aligned growth of ZnO nanowires on diamond by nanoparticle-assisted pulsed laser deposition 1 Dr. Daisuke Nakamura
- Poster *student* Spectrometer-based Ultrashort Pulsed Laser Selective Microstructuring of Ni/NiCr Multi-layer Coatings 1 Chao He
- Poster *student* Femto- and nanosecond laser surface modification of stainless steel 1 Dipl.-Volkswirt Paulina Dzienny
- Poster Laser writing of waveguides in porous glass for small molecules detection 1 Dr. Roman Zakoldaev
- Poster *student* Homogeneous intensity within the Rayleigh length and enhanced depth of focus for Gaussian beams 1 Christian Bischoff
Session Chair

Session PS: Poster Session 01
Belongs to:
Topic PS: Poster Session

Laser peening is a surface treatment technique that improves the mechanical performance of metals, which can induce a compressive residual stress and a work hardened layers at metal surface. The second harmonics (λ=532 nm) of Nd: YAG laser which has less absorption in water has been used in many studies in laser peening. Since the second harmonics have to convert the fundamental wave of Nd: YAG laser in the efficiency of about 50 %, the energy efficiency have a reduction in laser peening process. In this study, we have used a near infrared laser (λ=1064 nm) for efficient laser peening and investigated the effect of laser peening when the thickness of the plasma confinement layer is varied.

Hikaru Hirata
Kindai University
Additional Authors:
  • Prof. Hitoshi Nakano
    Kindai University
  • Dr. Miho Tsuyama
    Kindai University
  • Dr. Manabu Heya
    Osaka-Sangyo University


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