Pulsed Mechanical Surface Treatment—An Approach to Combine the Advantages of Shot Peening, Deep Rolling, and Machine Hammer Peening

Several manufacturing processes are used to beneficially influence the surface and subsurface properties of manufactured parts. Different aspects such as topography or resulting residual stresses addressed using different processes. This paper presents first approach for pulsed mechanical treatment (PMST), a new process aiming combine mechanics in deep rolling shot hammer peening. The can generate defined while constantly impinging impact on workpiece. Two tools (type 1 type 2) have been designed this concept. Hardened carbide pins prove concept simpler kinematic burnishing-like process. For 2, hardened roller is results an actual Specimens made S235 processed experiments with tool varying pulse frequency feeds. described optical measurement systems micro-hardness measurements describe properties. general show increase hardness layer be directly controlled by parameters therefore specific functional