Analysis of the Cutting Tool Vibration while Milling with Changing Engagement Conditions

Enk, D.^{1, a}; Surmann, T.^{1, b}

1)

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

a) enk@isf.de; b) surmann@isf.de

Kurzfassung

This paper presents experimental analyses of tool vibrations for instationary milling processes. This is used to validate a time-domain simulation system for the general milling process. First the absolute basics of appearing chatter and regenerative effect are called. The experimental set up for determining the process forces and the tool deflection is presented. In order to predict the process behavior of the general milling process, an experimental analysis of tool vibrations for instationary milling processes is presented, which is used to determine the demands on a simulation system. Therefore a disturbance is generated for inserting a change of engagement condition. Besides the vibration patterns, which occur after a change of the engagement conditions, the structure of the machined surface is examined in order to analyze the surface fault resulting from the change of the tool vibration type. Furthermore, the experimental setup and results are presented.

Schlüsselwörter

milling dynamics, in process measuring, engagement condition

Veröffentlichung

In: Proceedings of the 9th CIRP International Conference on Modeling of Machining Operations, 2006, Bled, Slovenia, Grabec, I.; Govekar, E. (Hrsg.), ISBN 961-6536-06-0, S. 139-144