Title: Milling induced residual stresses in structural parts out of forged aluminium alloys

Authors: B. Denkena, L. De Leon

Addresses: Institute of Production Engineering and Machine Tools, Leibniz Universitat Hannover, An der Universitat 2, Hannover, Garbsen 30823, Germany. ' Institute of Production Engineering and Machine Tools, Leibniz Universitat Hannover, An der Universitat 2, Hannover, Garbsen 30823, Germany

Abstract: Machining operations of aluminium structural parts are typically carried out under high feeds and high cutting speeds. These cutting conditions exert thermal and mechanical loads on the workpiece, which cause changes in the subsurface material. Residual stresses belong to the machining induced changes and can lead to considerable rejection rates as a consequence of part distortion. Due to the significant economic importance, it is essential to investigate the influence of the machining process on the residual stresses in aluminium. This paper presents the influence of cutting parameters and tool geometry on the level of residual stress in workpieces out of forged aluminium alloys.

Keywords: residual stress; machining operations; tool geometry; milling; structural parts; aluminium alloys; cutting parameters.

DOI: 10.1504/IJMMM.2008.023717

International Journal of Machining and Machinability of Materials, 2008 Vol.4 No.4, pp.335 - 344

Published online: 08 Mar 2009 *

Full-text access for editors Full-text access for subscribers Purchase this article Comment on this article