Modeling regenerative workpiece vibrations in five-axis milling

Weinert, K.^{1, a}; Kersting, P.^{1, b}; Surmann, T.^{1, c}; Biermann, D.^{1, d}

1)

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

a) weinert@isf.de; b) petra.kersting@isf.de; c) surmann@isf.de; d) biermann@isf.de

Kurzfassung

During milling—especially of thin-walled components—the dynamic behavior of the workpiece-tool-machine-system influences the milling process and particularly the quality of the resulting workpiece surface. This article focuses on the presentation of a simulation concept for predicting regenerative workpiece vibrations, which combines a finite element model for analyzing the dynamic behavior of the workpiece with a time domain simulation for the five-axis milling process. Both concepts, their linking, and the experimental setup for verifying the simulation will be described. A comparison of the simulation results with the data measured in experiments with regard to the vibration frequencies as well as the surface quality will be given.

Schlüsselwörter

Production process, Milling simulation, Thin-walled components

Veröffentlichung

Production Engineering. Research and Development, 2 (2008) 3, S. 255-260