This article demonstrates the effectiveness of vibration stress relief (VSR). VSR has been described in a number of written literature and its efficacy has been investigated by many researchers. The interesting thing about this article is that we do not use a common test method to detect the residual stress of a casting part. The diagnostics are performed acoustically, from which the natural frequency of the component is determined, from which, the residaul stress can be deduced. The aforementioned data play an important role in setting up a VSR. The results are significant because the new method significantly reduced the time of diagnostic. Last but not least, this type of diagnostics is easy to implement in industrial work areas, even factories and foundries, as it does not require a large area, is not energy and investment-intensive.
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