Process For Surface Altering

Author:  Millhiser, R. G. et al
Source:  US Patent 3,257,759
Doc ID:  1966007
Year of Publication:  1966
Abstract:  
This invention relates to a process for hydraulic blasting and surface-altering of articles. The invention utilizes hydraulic means for imparting energy to surface-altering particles, such as so-called blasting grit, steel shot and like coarse peening particles used in the process. More particularly, the invention relates to an improved process which is more effective by reason of the impart pattern of the particles on the articles' surfaces.