Effect Of Various Peening Parameters On Compressive Residual Stress For Carburized Steel

Author:  T. Seno, H. Horiuchi, T. Naito
Source:  Conf Proc: ICSP-4, (p.505-512)
Doc ID:  1990029
Year of Publication:  1990
Abstract:  
A design of an experiment method has clarified the contribution ratio of various peening parameters on compressive residual stress for carburized steel by using a nozzle type machine. Various peening parameters consist of shot flow rate (15, 20, 27kg/min), exposure time (1, 5, 10sec), the distance between the tip of a nozzle and the work surface (100, 130, 180mm), shot diameter (0.6, 0.8) and shot hardness (HRC 53, 58). The results were: (1) Exposure time and shot hardness have sensitive influence on compressive residual stress. (2) Shot flow rate, distance between the tip of a nozzle and the work surface and shot size were not so significant. These results have suggested the idea to get the most efficient peening effect. Descriptors: A design of an experiment method; Peening parameters; Peening effect; Nozzle type machine; Carburized steel