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Optimization of the stream finishing process for mechanical surface treatment by numerical and experimental process analysis

This scientific paper was published at the CIRP Annals Volume 65/2, in 2016.

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Authors:

Frederik Zanger, Andreas Kacaras, Patrick Neuenfeldt, Volker Schulze.

 

Abstract:

The stream finishing process represents an efficient mass finishing process capable in mechanical surface modification. In order to generate a deeper understanding of the cause-effect relationships, normal forces, material removal and surface topography were analyzed and correlated for varied process parameters of disc-shaped AISI 4140 specimens. Local resolution of tangential velocities of the particles and normal forces on the workpiece’s surface were simulated using the discrete element method for defined process parameter configurations and were correlated with experimental results. A deep process understanding is accomplished enabling the process design for efficient surface smoothing and improved residual stress depth distribution.

Keywords: finishing, surface modification, discrete element method.


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