OS0201 Observation of particle behavior in Fine Particle Peening process

Abstract

In this paper, we focused on the particle velocities of fine particle peening process (FPP) and measured them by a high-speed camera. Also, we developed the theoretical model of particle motions with the effect of jet flow and calculated the particle velocities after spouting from the nozzle. Then, we compared the experimental results with the calculated results, and those agreed well each other. It is concluded that the particle velocity can be estimated by our prposed model and it is helpful information for understanding the surface modification in fine particle peening (FPP) process.

Experimental Analysis of the Shot Peening Particle Stream Using Particle Tracking and Digital Image Correlation Techniques

“…Santo et al [12] studied the velocity of particles in a pneumatic conveyer using a high speed camera and a mirror to obtain 3D data. Aiba et al [13] used a high speed camera to measure the average velocity at 3 specific distances ahead of the nozzle for different particle diameters and jet pressures. They concluded that as the particle size decreases or the jet pressure increases, the particle velocity increases.…”