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

Author:  P. Cheppe, V. Desfontaine, J-M Duchazeaubeneix
Source:  US Patent 7,647,800 B2
Doc ID:  2010038
Year of Publication:  2010
Abstract:  
Shot for use in a peening installation, the shot having: hardness greater than or equal to 800 BV; density greater than or equal to 8 glcm3; and pieces having a maximum dimension less than or equal to 1.5 mm.