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Accession Number:
AD0831738
Title:
EFFECT OF VIBRATIONAL ENERGY ON RESIDUAL STRESSES IN WELDMENTS AND FORGINGS
Corporate Author:
BATTELLE MEMORIAL INST COLUMBUS OH DEFENSE METALS INFORMATION CENTER
Report Date:
1967-08-21
Abstract:
Vibrating welded and hot- and cold-worked components at their resonant frequencies can cause a redistribution of residual stresses under certain conditions. However, indiscriminate use of such vibrations to cause relief of residual stresses is not recommended because 1 stress relief equivalent to that obtained by thermal stress relieving is not achieved and 2 if there are flaws or stress raisers in the components, fatigue cracks can be initiated at these locations. Redistribution or modification of the residual stress patterns by means of repeated vibrations can be obtained and might be beneficial for certain components as long as a qualitative or quantitative study has been made of the residual stress patterns before and after vibrating prototype components. Nondestructive inspection is recommended both before and after the vibration treatment.
Descriptive Note:
Technical note
Supplementary Note:
DOI: 10.21236/AD0831738
Pages:
0006
Distribution Statement:
Approved for public release; distribution is unlimited.
Contract Number:
AF 33(615)-3408
File Size:
0.61MB
