keevistoote vasarpinnimine
keevistoote kohttöötlemine löökkoormustega sisepingete vähendamiseks nt piikvasaraga või vibratsiooni rakendades, a technique used in welding to help strengthen joints which consists of a process in which a small metal ball is struck with a peening hammer to create compressive forces on the surface of the metal, creating a denser surface
