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Aufprallversuche und Finite‐Elemente‐Simulation der Oberflächeneinglättung durch Festklopfbearbeitung
Author(s) -
Wied J.,
Scheil J.,
Klamser M.,
Berger C.
Publication year - 2011
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201100768
Subject(s) - hammer , finite element method , peening , surface roughness , smoothing , tungsten carbide , materials science , reduction (mathematics) , surface finish , mechanical engineering , work (physics) , engineering , structural engineering , residual stress , metallurgy , computer science , composite material , mathematics , geometry , computer vision
Machine hammer peening (MHP) is a mechanical surface treatment that employs a tungsten carbide tool to hammer the surface of a work piece. It was the goal of this study to find relations between the process parameters and the surface smoothing effect of MHP by finite element simulations. Impact experiments have been conducted in order to find suitable load‐deformation‐relations for a selection of work piece materials and to validate the model. A finite element model has been established with good agreement to the experimental results. Simulations have been conducted to investigate the influence of main process parameters on the surface roughness reduction. Additional simulations were performed and a way of creating uniform smooth surfaces with respect to small duration of surface treatment is presented.