Vibration stress relief of weldments

Details Vibration stress relief of weldments Vibration stress relief of weldments

2005-08-19

2008-10-07

Lorengo, Jerry (Department: 1793)

Metal fusion bonding

Process

Using high frequency vibratory energy

C148S558000, C073S579000

Reexamination Certificate

active

07431193

ABSTRACT:
A method of stress relief for stainless steel combustion turbine components includes vibrating the components during welding at a subharmonic frequency. The proper frequency is selected to be below a harmonic frequency, and to produce an amplitude in the range of ¼ to ½ the amplitude produced by a harmonic frequency. The component to be repaired is vibrated during and after welding at this frequency.

REFERENCES:
patent: 4968359 (1990-11-01), Hebel et al.
patent: 5348212 (1994-09-01), Galanes
Adams, C. Mel, Berry, John T., Klauba, Bruce B., Productive applications of mechanical vibration, May 20, 2005, American Society of Materials, appendix.
Brochure describing “The VSR-8000 System Supplies State-of-the-Art Performance with Computerized Treatment and Automatic Treatment Data Archiving”; Airmatic® Inc.; 2 pages; Form; VSR80002P; VSR Technology Group, Philadelphia, PA.

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