A manufacturer of hydro-turbine equipment used for power generation received an order to replace 4 tons of cavitated cast steel in 100,000 lb. bottom ring assembly, they chose the vibratory stress relief process to assure stability throughout fabrication and machining. The result was not only an 80% to 90% reduction of distortion at a critical stage in the fabrication process, but also a considerably more stable work piece during final machining.

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