Experimental and simulative investigations on machining aluminium lightweight structures Online publication date: Sun, 08-Mar-2009
by Dirk Biermann, Timo Engbert, Sven Grunert, Niels Hammer
International Journal of Machining and Machinability of Materials (IJMMM), Vol. 4, No. 4, 2008
Abstract: In industrial practice, the machining of lightweight profiles is associated with different 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 accurate 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 potential 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 presented in this paper. Both, experimental research and simulation-based analyses form the basis of this paper.
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