Electric heating – Metal heating – By arc
Patent
1989-07-03
1990-06-26
Albritton, C. L.
Electric heating
Metal heating
By arc
21912169, 21912177, B23K 2600
Patent
active
049374214
ABSTRACT:
A laser peening apparatus and method for peening a workpiece utilizing a laser beam is described. The system includes a foil aligned with a surface of the workpiece to be peened and lasing the aligned foil surface. The foil absorbs energy from the beam and a portion of the foil vaporizes, which creates a hot plasma within the foil. The plasma creates a shock wave which passes through the foil and peens the workpiece surface.
REFERENCES:
patent: 4673795 (1987-06-01), Ortiz, Jr.
patent: 4681396 (1987-07-01), Jones
patent: 4752455 (1988-06-01), Mayer
R. T. Hodgson et al., "Ohmic Contacts Made by Lasers", IBM Technical Disclosure Bulletin, vol. 21, No. 10, p. 4286, Mar. 1979.
Justus et al., "Fluorescence Thermometry of Shocked Water", App. Phys. Lett., vol. 47, No. 11, 12/1/85.
Schoen et al., "Characteristics of Compressional Shocks Resulting from Picosecond Heating of Confined Foils", Appl. Phys. Lett., vol. 45, No. 10, 11/15/84.
Felix, "Laser-Generated Ultrasonic Beams", Rev. Sci. Instrum., vol. 45, No. 9, 9/74.
Fairand et al., "Laser Shock-Induced Microstructural and Mechanical Property Changes in 7075 Aluminum", J. Appl. Phys., vol. 43, No. 9, 9/72.
Erikson Carl E.
Jones Marshall G.
Ortiz Jr. Angel L.
Penney Carl M.
Albritton C. L.
Beulick John S.
Davis Jr. James C.
General Electric Company
Webb II Paul R.
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