Fine, Hard, and High Density Ceramic Beads for Shot Peening
Author: D. Bouttes1, L. Zhou2, F. Wiss3 and A.-L. Beaudonnet3 1 Saint-Gobain Research Provence, Cavaillon, France 2 Saint-Gobain Research Shanghai, Shanghai, China 2 Saint-Gobain SEPR, Le Pontet, France
Source: ICSP14 Milan
Doc ID: 2022079
Year of Publication: 2022
Abstract:
Abstract
We investigate the use of new high density, fine, and hard ceramic beads for shot peening.
By studying the effect of such media on a series of representative alloys, we show that they
can impart very efficiently intense residual stresses, especially at the surface. Due the higher
hardness of the media compared to the treated alloys – even carburized steel – this efficient
modification of the sub-surface is accompanied by a roughness modification that is strongly
dependent on the intensity of the treatment. The combination of the intense residual stresses
and controlled surface topography modification brings some new opportunities for improving
the shot peening process of different alloys.
Keywords Fine shot peening, ceramic shot, roughness, residual stress
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