Wear and Its Reduction

Author:  Dr. David Kirk, Coventry University, U.K.
Source:  The Shot Peener magazine, Vol 30, Issue 1, Winter 2016
Doc ID:  2016009
Year of Publication:  2016
Abstract:  
Shot peeners are beset with wear problems. Every piece of shot and all peening equipment are subject to wear to a greater or lesser extent. A universal example is the wear endured by shot particles on impact with components. As another example: the late Jack Plaster aptly said that “A centrifugal blast machine is probably the most self-destructive of all modern mechanical machines.” Enormous numbers of hard particles are pressed against unlubricated rotating surfaces, hence generating fiendish wear problems. To some extent a centrifugal wheel-blast machine acts as a giant pepper mill—with shot particles playing the role of peppercorns!