Laser shock peening and warm laser shock peening: process modeling and pulse shape influence

Alessandro Fortunato; Leonardo Orazi; Gabriele Cuccolini; Alessandro Ascari

doi:10.1117/12.2007393

22 February 2013 Laser shock peening and warm laser shock peening: process modeling and pulse shape influence

Alessandro Fortunato, Leonardo Orazi, Gabriele Cuccolini, Alessandro Ascari

Proceedings Volume 8603, High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications II; 86030G (2013) https://doi.org/10.1117/12.2007393
Event: SPIE LASE, 2013, San Francisco, California, United States

Abstract

Laser shock peening is a well-known technology able to enhance the fatigue life of mechanical components by means of the introduction of residual stresses on their surface. These stresses are induced by means of the recoil pressure caused by the abrupt expansion, in a confining medium, of a laser-vaporized coating layer. If high power densities are used the recoil pressure can be high enough to induce compressive residual stresses on the target surface and to modify its mechanical properties. These mechanical properties can be predicted if the recoil pressure of the ablating layer is determined. In this paper the influence of the laser pulse shape on the recoil pressure is determined by means of a proper modeling of the whole process and the difference between cold" and warm" laser shock peening is pointed out.

Citation Download Citation

Alessandro Fortunato, Leonardo Orazi, Gabriele Cuccolini, and Alessandro Ascari "Laser shock peening and warm laser shock peening: process modeling and pulse shape influence", Proc. SPIE 8603, High-Power Laser Materials Processing: Lasers, Beam Delivery, Diagnostics, and Applications II, 86030G (22 February 2013); https://doi.org/10.1117/12.2007393

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available