Vibration suppression in turning TiAl6V4 using additively manufactured tool holders with specially structured, particle filled hollow elements

Vogel, F.1, a; Berger, S.1, b; Özkaya, E.1, c; Biermann, D.1, d

1)
Institute of Machining Technology, TU Dortmund University, Baroper Str. 303, D-44227 Dortmund, Germany

a) Florian.vogel@tu-dortmund.de; b) sebastian.berger@tu-dortmund.de; c) ekrem.oezkaya@tu-dortmund.de; d) dirk.biermann@tu-dortmund.de

Abstract

Titanium is increasingly being used in several industrial areas of application due to its low density and at the same time high stiffness. However, machining the lightweight material can be associated with considerable complications. In particular, cutting often results in pronounced tool vibrations resulting from the material-specific segment chip formation. Due to the continuous build-up and sliding of several chip segments in the working zone, the tool is set into vibration depending on the given boundary conditions. Using specially structured, particle-filled toolholders, such vibrations can be passively damped. On the one hand due to a vibration-optimised tool design, and on the other hand due to friction and elastic impacts between the filling particles as well as between the filling particles and the tool's internal structure, a significant dissipation of the vibration energy can be achieved.

Keywords

Titanbearbeitung, Additive Fertigung, Partikeldämpfer, Schwingungsdämpfung, Prozessstabilität

Publication

New Production Technologies in Aerospace Industry: Proceedings 2019, IFW Volume 7/2019, Editor: Berend Denkena, TEWISS Verlag, Hannover, (2019), pp. 170-185, ISSN 1610-7527