Cavitation Peening Using a Submerged Water Jet and a Pulsed Laser Comparing with Shot Peening
Author: H. Soyama1 1 Department of Finemechanics, Tohoku University, Japan
Source: ICSP14 Milan
Doc ID: 2022087
Year of Publication: 2022
Abstract:
Abstract
Improvement of fatigue strength treated by cavitation peening, in which cavitation impact at
bubble collapse is utilized for peening, was demonstrated by using a plane bending fatigue
test comparing with shot peening and non-peened. In the present paper, a submerged water
jet and a pulsed laser were used for cavitation peening. Stainless steel SUS316L, aluminum
alloy A2024-T3 and magnesium alloy AZ31B were treated by cavitation peening and shot
peening. It was revealed that the best improvement of the fatigue strength comparing with
non-peened was 25% for SUS316L by cavitation peening using the jet, 42% for A2024-T3 by
cavitation peening using the laser and 55% for AZ31B by cavitation peening using the laser.
Keywords cavitation peening, submerged jet, pulsed laser, fatigue strength.
| Download PDF |
---|