Design of a simulation tool to identify stable milling processes


Duration: May 1, 2005 -  April 30, 2011
Project leaders: D.Hömberg¹ and E.Uhlmann²
¹Weierstrass Institute for Applied Analysis and Stochastics, Mohrenstrasse 39, 10117 Berlin
Tel: +49 (0)30 - 20372 491 (office) / - 20372 555 (secretary)
email: hoemberg@wias-berlin.de

² University of Technology, Berlin, Strasse des 17. Juni 136, 10623 Berlin
Tel: +49 (0)30 - 314 23349 (secretary)
email: E. Uhlmann

Responsible: O. Rott
Weierstrass Institute for Applied Analysis and Stochastics, Mohrenstrasse 39, 10117 Berlin
Tel: +49 (0)30 - 20372 584
email:rott@wias-berlin.de

Cooperation: Institut für Werkzeugmaschinen und Fabrikbetrieb (IWF), TU - Berlin

IWF-project-summary.pdf

Support: DFG SPP 1180 - Prediction and Manipulation of Interaction between Structure and Process

Introduction:

Chatter in milling is due to self-induced vibrations. The milling machine and the machined workpiece can be considered as a damped elastic structure, which is activated by a periodic cutting force. The feed per tooth, the spindle rotation speed and the axial depth of cut are the parameters to control the cutting process.  A disadvantageous choice of these values often leads to unstable cutting conditions (chatter). Most of the current mathematical models, which are used to identify the parameter range of stable cutting, neglect the influence of the workpiece. Here an approach is developed which takes the elastic behavior of the workpiece into account.

Goals of the project:

Recent Publications:



last modified June 16, 2010