Optimization of the stream finishing process for mechanical surface treatment by numerical and experimental process analysis |
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| Affiliation: | 1. Technology Center, The Timken Company, North Canton, OH, USA;2. Department of Mechanical and Aerospace Engineering, University of Florida, USA;3. Department of Materials & Manufacturing Technology, Chalmers University of Technology/Scania CV, Södertälje, Sweden;4. Institute of Machine Tools and Manufacturing, ETH Zurich, Switzerland;5. Institute of Machine Tools and Production Technology (IWF), Technical University of Braunschweig, Germany;1. Dipartimento di Ingegneria dell''Impresa, Università degli Studi di Roma “Tor Vergata”, Via del Politecnico, 1, 00133 Roma, Italy;2. Dipartimento di Economia ed Impresa, Università degli Studi della Tuscia, Via del Paradiso, 47, 01100 Viterbo, Italy;3. Dipartimento di Ingegneria Meccanica ed Aerospaziale, Sapienza Università degli Studi di Roma, Via Eudossiana, 18, 00184 Roma, Italy |
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| 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. |
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| Keywords: | Finishing Surface modification Discrete element method |
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