Discrete elements method simulation of the movement of media and the velocity between the media and treated parts during the vibratory peening process
Author: L. De La Torre a, H. Y. Miao a, B. Changeux b, J. Badreddine b, S. Turenne a, M. Lévesque a a. Département de Génie Mécanique, École Polytechnique de Montréal, C.P. 6079, Succ. Centre-Ville, Montréal, Québec, H3C 3A7 Canada b. Safran Tech, Materials & Pro
Source: ICSP14 Milan
Doc ID: 2022097
Year of Publication: 2022
Abstract:
Abstract
Vibratory peening combines the shot peening and vibratory finishing processes into one
process. It has the same effect as shot peening that increases fatigue life by inducing
compressive residual stresses while polishing the treated part, which is usually done by
vibratory finishing. In this work, the vibratory peening process was investigated to assess if a
correlation can be made with the shot peening process using Almen strips. A vibratory peening
machine was equipped with a data acquisition system that can measure the displacement of
the whole machine in a three-dimension space. Then, Almen strips were treated using 3 mm
steel bearing balls while the data acquisition system recorded the vibrations modes of the tub
from 10 Hz to 30 Hz. The vibratory peening process was simulated using a model based on
the discrete element method (DEM) and its main output was the impact velocity of the media
on the Almen strip. Simulations were compared to the vibratory peening treatments on Almen
strips and to the literature on conventional shot peening.
Keywords: Vibratory peening, DEM simulation, impact velocity
| Download PDF |
---|