Laser shock processing with momentum trap

Details Laser shock processing with momentum trap Laser shock processing with momentum trap

2011-06-14

2011-06-14

Heinrich, Samuel M (Department: 3742)

Electric heating

Metal heating

By arc

C148S565000, C415S232000

Reexamination Certificate

active

07960671

ABSTRACT:
A method for laser shock processing a device, including a metallic body having a surface, comprises conformally applying a compliant solid material to the first region on the surface of the metallic body and applying a layer of ablative material to the second region on the surface of the metallic body. A damping liquid is flowed over the layer of ablative material. An array of pulses of laser energy is directed through the damping fluid to impact the layer of ablative material on the surface and peen the surface in the second region. The pulses induce pressure waves within the metallic body which propagate to the surface in the first region. The compliant solid material acts as a momentum trap, so that the acoustic waves are at least partially coupled into the compliant solid material and attenuated outside of the metallic body.

REFERENCES:
patent: 3667911 (1972-06-01), Balchan et al.
patent: 3668168 (1972-06-01), Self
patent: 4401477 (1983-08-01), Clauer et al.
patent: 5020001 (1991-05-01), Yamamoto et al.
patent: 5131957 (1992-07-01), Epstein et al.
patent: 5239408 (1993-08-01), Hackel et al.
patent: 5674329 (1997-10-01), Mannava et al.
patent: 5686689 (1997-11-01), Snedeker et al.
patent: 5741559 (1998-04-01), Dulaney
patent: 6078022 (2000-06-01), Dulaney et al.
patent: 6292584 (2001-09-01), Dulaney et al.
patent: 6559415 (2003-05-01), Mannava et al.
patent: 6599983 (2003-07-01), Irii et al.
patent: 6629464 (2003-10-01), Suh et al.
patent: 6805970 (2004-10-01), Hackel et al.
patent: 6811149 (2004-11-01), Johnson
patent: 7268317 (2007-09-01), Tenaglia et al.
patent: 0196619 (2001-12-01), None
International Search Report for PCT Application PCT/US06/62262.
Clauer et al., “Effects of Laser Induced Shock Waves on Metals,” Shock Waves and High-Strain-Rate Phenomena in Metals (1981), Chapter 38, Plenum Publishing Corporation, New York.
http://www.cromptoncorp.com/epdm.html, 2 pp, Nov. 1, 2005.
Fairand et al., “Laser shock-induced microstructural and mechanical property changes in 7075 aluminum,” J.Appl. Phys., 43:9, Sep. 1972, 3893-5.
Dow Corning product brochure for Sylgard, “Information About High Technology Silicone Materials,” 6pp.

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