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Prediction and experimental validation of an impact energy threshold for mechanical surface smoothing

Sticht, Peter and Steitz, Manuel and Groche, Peter (2016):
Prediction and experimental validation of an impact energy threshold for mechanical surface smoothing.
In: Procedia CIRP, pp. 159-162, 45, [Online-Edition: http://www.sciencedirect.com/science/article/pii/S2212827116...],
[Article]

Abstract

Dynamic processes like machine hammer peening generate a smoothing of tool surfaces, an increase in hardness and residual compressive stresses in the surface layer. So far, it is not possible to determine the energy threshold needed to smooth a rough surface based on tool parameters and workpiece characteristics. Thus, this paper focuses on the definition of an energy threshold as well as the derivation of an analytical equation to calculate the energy demand for plastic deformation. The method is validated by experimental investigations. It is shown that the defined energy threshold for mechanical surface smoothing corresponds with the experimental data.

Item Type: Article
Erschienen: 2016
Creators: Sticht, Peter and Steitz, Manuel and Groche, Peter
Title: Prediction and experimental validation of an impact energy threshold for mechanical surface smoothing
Language: English
Abstract:

Dynamic processes like machine hammer peening generate a smoothing of tool surfaces, an increase in hardness and residual compressive stresses in the surface layer. So far, it is not possible to determine the energy threshold needed to smooth a rough surface based on tool parameters and workpiece characteristics. Thus, this paper focuses on the definition of an energy threshold as well as the derivation of an analytical equation to calculate the energy demand for plastic deformation. The method is validated by experimental investigations. It is shown that the defined energy threshold for mechanical surface smoothing corresponds with the experimental data.

Journal or Publication Title: Procedia CIRP
Volume: 45
Uncontrolled Keywords: Surface Modification; Energy; Machine Hammer Peening
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institut für Produktionstechnik und Umformmaschinen (PtU)
Date Deposited: 28 Oct 2016 10:23
Official URL: http://www.sciencedirect.com/science/article/pii/S2212827116...
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