Abstract
This review describes on the types and characteristics of the main media for shot peening. Shot peening is a cold working process impacting the work material using spherical particles and producing the surface texture covered with uncountable dents and surface integrity beneath the peened surface. As the working device of shot peening is small shots, the surface roughness is homogeneous and narrow area can be peened such as the inside of coil springs, pipes and deddendum flank of gears. As the results, shot peening improves the mechanical properties such as fatigue, stress corrosion cracking, wear, and also improves effects on the flow resistance coefficient of the peened surface and on the heat transfer characteristics. The types of peening media treated in this paper are cast steel, cut wire, conditioned cut wire, glass, ceramics, stainless steel, cemented carbide, high speed steel and amorphous.
