초록 ▼

An apparatus for testing and stress relieving metal components comprising a vibration means (28), attachment means (30), control means (2) and measuring means (13,31), the attachment means (28) being configured and arranged to, in use, directly vibration couple the vibration means (28) to a metal co

An apparatus for testing and stress relieving metal components comprising a vibration means (28), attachment means (30), control means (2) and measuring means (13,31), the attachment means (28) being configured and arranged to, in use, directly vibration couple the vibration means (28) to a metal component (40), the control means (2) controlling actuation of the vibration means (28), and the measuring means (13,31), in use, measuring the amplitude of vibration in the said metal component (29).

대표청구항 ▼

[ I claim:] [1.] A method of stress relieving a metal component in situ, the method comprising the steps of:a. providing said metal component in situ, arranged and configured with adjoining components and attaching a vibration means to a said metal component to provide a substantially direct vibrati

[ I claim:] [1.] A method of stress relieving a metal component in situ, the method comprising the steps of:a. providing said metal component in situ, arranged and configured with adjoining components and attaching a vibration means to a said metal component to provide a substantially direct vibration couple between the vibration means and the said metal component;b. actuating the vibration means through a predetermined range of vibration frequencies at a predetermined rate and at a constant input amplitude to locate and measure a resonance frequency of the said metal component;c. actuating the vibration means at above or below the measured resonance frequency for a predetermined period of time to relieve a degree of residual stress in the said metal component;d. repeating step b. to obtain a second measurement of the said resonance frequency;e. comparing the first and second measurements of the said resonance frequency to provide an indication of the change in residual stress in the said metal component; andf. repeating steps c., d. and e. until the change in the measured resonance frequency from one measurement to the next is at or below a predetermined level.