Surface Structuring by Milling with Intentionally Invoked Chatter

Biermann, D.^{1, a}; Surmann, T.^{1, b}; Odendahl, S.^{1, c}; Brüggemann, T.^{1, d}; Krebs, E.^{1, e}

1)

Institut für Spanende Fertigung, Technische Universität Dortmund, Baroper Str. 301, 44227 Dortmund

a) biermann@isf.de; b) surmann@isf.de; c) odendahl@isf.de; d) brueggemann@isf.de; e) krebs@isf.de

Kurzfassung

In this paper, a new approach to the structuring of functional surfaces is presented. These functional surface structures are especially important in the newly developed process of sheet-bulk metal forming, which combines sheet metal forming and bulk metal forming. In contrast to the usual approach of structuring after finish-milling, for example, by grinding or blasting, the structuring is carried out directly during the milling process by exploiting the tool oscillations caused by intentionally invoked chatter. Experiments were conducted, which demonstrate the applicability of the approach and give an initial overview of possible surface structures. In addition, a simulation is presented, which is able to predict those surface structures and, thus, allows a simulation-based process design in the future application.

Schlüsselwörter

Milling, Chatter, Simulation

Veröffentlichung

In: Proceedings of the CIRP 2nd International Conference Process Machine Interactions, 10.6.-11.6. 2010, Vancouver, BC, Canada, ISBN 978-0-9866331-0-2, digital veröffentlicht