Eur. Phys. J. AP
Volume 9, Number 3, March 2000
|Page(s)||235 - 238|
|Published online||15 March 2000|
Laser shock processing with 20 MW laser pulses delivered by optical fibers
Laser Laboratorium Göttingen e.V., Hans-Adolf-Krebs-Weg 1, 37077 Göttingen, Germany
2 Nuclear Engineering Laboratory, Toshiba Corporation, 8, Shinsugita-cho, Isogo-ku, Yokohama 235-8523, Japan
Corresponding author: firstname.lastname@example.org
Revised: 14 January 2000
Accepted: 24 January 2000
Published online: 15 March 2000
A large-core multi mode optical fiber is used to deliver 100 mJ, 5 ns laser pulses produced by a frequency-doubled Nd:YAG laser over a distance of several meters. No damage is observed neither inside the fiber nor at its surface. The transmitted pulses are focused to a diameter of 700 μm onto a water-immersed type 304 stainless steel sample for laser shock processing. With a pulse density of 10000 pulses/cm2, a compressive residual surface stress is achieved. The affected depth is almost 900 μm, the maximum compressive stress −700 MPa.
PACS: 42.81.Cn – Fiber testing and measurement of fiber parameters / 42.62.Cf – Industrial applications / 62.50.+p – High-pressure and shock-wave effects in solids and liquids
© EDP Sciences, 2000
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.