Work

Numerical study of parameters affecting surface integrity in machine hammer peening of AISI 4140

Year: 2025

Type: article

Abstract: This study investigates the influence of key parameters in machine hammer peening on the surface integrity of AISI 4140 steel using numerical simulations. Variables such as impact velocity, friction between the workpiece and tool, and peening frequency are analyzed to evaluate their effects on indent size, impact area, and residual stress. The numerical approach provides a comprehensive understanding of how these parameters can be optimized to enhance mechanical properties, supplemented by experiments to validate the simulation results. The findings reveal significant correlations between processing conditions and surface integrity, offering practical insights for improving machine hammer peening processes in industrial applications.

Source: Procedia CIRP

DOI: 10.1016/j.procir.2025.02.018

Authors: Zhaoyu Chen, Matthias Hettig, Jens Sölter, Daniel Meyer

Institutions: University of Bremen, Leibniz-Institut für Werkstofforientierte Technologien - IWT

Language: English

Topic: Surface Treatment and Residual Stress

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

Funder: Deutsche Forschungsgemeinschaft

Award: TRR 136: Funktionsorientierte Fertigung auf der Basis charakteristischer Prozesssignaturen