How Visualization Saves Money in R&D

Author:  M. Micoulaut, E. Rouhaud, E. Guyot
Source:  The Shot Peener magazine, Vol 30, Issue 4, Fall 2016
Doc ID:  2016039
Year of Publication:  2016
Abstract:  
Mechanical pre-stressing treatments using shot peening are widely used in automobile, aeronautic and biomedical industries to improve mechanical parts and structures. These cold-working processes use spherical media called shot, and introduce surface compressive residual stresses that are found to enhance the fatigue resistance of intermediate- and high-strength metals and alloys. They protect the structure from fracture as fatigue cracks propagates mostly from surfaces during operation. The gain in strength and fatigue life observed after such a treatment can be spectacular while offering the advantage of being relatively easy to perform technically.