SHOT, DEVICES, AND INSTALLATIONS FOR ULTRASONIC PEENING, AND PARTS TREATED THEREBY

Author:  P. Cheppe, V. Desfontaine, J-M Duchazeaubeneix
Source:  US Patent 7,647,801 B2
Doc ID:  2010039
Year of Publication:  2010
Abstract:  
A system for ultrasonically peeing surfaces includes a sonolrode comprising a body material and a vibraling surface, the vibrating surface coaled with a coating material having a hardness greater than the body material, a treatment chamber defined at least in part by the vibrating surface, and at least one piece of shot within the treatment chamber to be excited by the vibrating surface ofthe sonotrode, the alleast one piece of shot having a hardness greater than or equal to 800 BY.