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| STUDY ON DISTRIBUTION OF MACHINING RESIDUAL STRESS FOR BERYLLIUM MATERIAL |
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| DOI： |
| KeyWord:Beryllium,Machining stress,Chemical etching |
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| Abstract: |
| By use of X2001 stress analyzer,the machining residual stress for beryllium material was measured. The influence of machining parameters on the stress and the methods for stress relieving were studied. The results showed that the compressive stress in surface layer of machined beryllium material was resulted from both turning and milling, and increases gradually with the increasing of cutting and feed depths. The chemical etching was an effective way for relieving of machining residual stress. The distribution of residual stress along depth gained through layer by layer measuring method after chemical etching is in line with that measured by multi wavelength method. |
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