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Method for determining a peening element speed limit ratio when peening the internal surface of a hollow part
Method for determining a peening element speed limit ratio when peening the internal surface of a hollow part
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机译:空心部件内表面喷丸时确定喷丸元素限速比的方法
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摘要
The rate of impact between the peening elements and an internal surface of a hollow part is a function of the vibration frequency, and there is a cut-off frequency at which a hollow part can vibrate and induce repeated impact between its internal surface and the peening elements because the rate of impact becomes erratic and loses its cyclical nature as the vibration frequency deviates from the cut-off frequency. The present invention provides a method for determining the cut-off frequency at which a hollow part can vibrate and maintain the repetitive nature of the impact between its internal surface and the peening elements. Such a method requires a peening element speed limit ratio, which is the ratio of the velocity of the hollow part compared to the velocity of the peening element above which the rate of impact begins to become erratic and lose its cyclical nature. The present invention, therefore, teaches a method of determining the peening element speed limit ratio.
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