This report describes using the vibratory stress relief process on a fabricated 20 foot diameter inlet with dome cover assembly made of 304 stainless steel. This assembly was welded to a 28 foot diameter vacuum furnace. The fit between the dome and inlet flanges, responsible for the integrity of the furnace’s seal was a major concern to ALLVAC, and VSR Technology’s vibratory metal stabilization process was chosen to stress relieve the assembly prior to welding it to the furnace.

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