Research on Vibration Aging Stress Regulation Process of GH625 Alloy Disc Parts
The clamping method of vibration aging treatment for blanks and roughly machined workpieces of GH625 alloy disc parts was determined through modal analysis,the resonance frequency of vibration aging by combining vibration aging simulation analysis and frequency sweeping were determined,and the reduction of residual stresses in blanks and roughly machined workpieces were analyzed after vibration aging as well as the homogenization effect.The maximum values of and were reduced by 58.17%and 41.03%respectively after vibration aging treatment at a resonance frequency of 750Hz,and the stress homogenization rate could reach 56.32%,the maximum values of and of roughing workpieces after vibration aging treatment at a resonance frequency of 560Hz have been reduced by 20.65%and 54.31%,respectively,and the stress homogenization rate could reach 50.34%,realizing the effective release of residual stress of GH625 alloy disc parts.
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