Machining of Thin-Walled Structures and Continuously Reinforced Light-Metal-Matrix Composites

Weinert, K.^{1, a}; Engbert, T.^{1, b}; Grünert, S.^{1, c}; Hammer, N.^{1, d}

1)

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

a) weinert@isf.de; b) engbert@isf.de; c) gruenert@isf.de; d) hammer@isf.de

Kurzfassung

In industrial practice, the machining of lightweight profiles is associated with problems. During conventional machining operations, process stability is often affected by material-dependent adhesion at the cutting edges. Due to adhesion, the quality of surfaces and bore-holes as well as the reliability of the machining operation often become inadequate. The correct machining of thin-walled profiles is exceptionally difficult due to their elastic structure and their tendency to oscillate in the frame structure. During the machining of extruded steel-wire reinforced light-metal-matrix profiles, tool wear is an additional crucial factor. The potentials and limitations of process design for high quality bore-holes produced by drilling and circular milling of conventional and steel-wire reinforced aluminium profiles are shown in the following article. Both, experimental research and simulation-based analyses form the basis of this paper.

Schlüsselwörter

Aluminium, Machining, Finite element method

Veröffentlichung

In: Sixth International Conference on High Speed Machining, 21.3.-22.3. 2007, San Sebastian, digital veröffentlicht