Modelling of the Ultrasonic Shot Peening Process

Abstract:

Article Preview

The aim of this work is to reach a better understanding of the ultrasonic shot-peening process and, in particular, the evolution of the shot speed distribution. A simple 1D modelling of the interaction between the shots and the sonotrode is carried out. The impact is considered as inelastic with an energy absorption that depends on the speed of the shot. It is found that after about 10 interactions (» 1s) the speed distribution in the chamber follows a Maxwell-Boltzmann distribution, which is the distribution found in a perfect gas at equilibrium. The influence of various process parameters such as the sonotrode amplitude, the vibration frequency on the average speed and on the Almen intensity is studied.

Info:

Periodical:

Materials Science Forum (Volumes 490-491)

Edited by:

Sabine Denis, Takao Hanabusa, Bob Baoping He, Eric Mittemeijer, JunMa Nan, Ismail Cevdet Noyan, Berthold Scholtes, Keisuke Tanaka, KeWei Xu

Pages:

67-72

DOI:

10.4028/www.scientific.net/MSF.490-491.67

Citation:

C. Pilé et al., "Modelling of the Ultrasonic Shot Peening Process", Materials Science Forum, Vols. 490-491, pp. 67-72, 2005

Online since:

July 2005

Export:

Price:

$35.00

[1] J. Lu, P. Peyre, C. Oman Nonga, A. Benamar and J.F. Flavenot, Residual stress and mechanical surface treatments, Current trends and future prospects, in Proceedings of the 4 th International Conference on Residual Stresses, Baltimore, p.1154, SEM (1994).

[2] E. Rouhaud and D. Deslaef, Materials Science Forum, Vols. 404-407, (2002), pp.153-158.

[3] H. Chardin, Etude de la densification par grenaillage ultrasons d'un matériau métallique poreux élaboré par métallurgie des poudres, PhD thesis, Ecole des Mines de Paris, december (1996).

[4] C. Pilé, D. Retraint, M. François, J. Lu, Effect of very high stress levels on the fatigue life of a TiAl based alloy, present conference.

DOI: 10.4028/0-87849-969-5.418

[5] A. H. Kharaz and D. A. Gorham, A study of the restitution coefficient in elastic-plastic impact, Philosophical Magazine Letters, Vol. 80, No. 8, (2000), pp.549-559.

DOI: 10.1080/09500830050110486

In order to see related information, you need to Login.