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An integrated approach to the modeling of size-effects in machining with geometrically defined cutting edges

 
: Hochrainer, T.; Delonnoy, L.; Kotschenreuther, J.; Schulze, V.; Löhe, D.; Gumbsch, P.; Fleischer, J.

Neugebauer, Reimund ; Fraunhofer-Institut für Werkzeugmaschinen und Umformtechnik -IWU-, Chemnitz; International Institution for Production Engineering Research -CIRP-, Paris:
8th CIRP International Workshop on Modeling of Machining Operations 2005. Proceedings : May 10 - 11, 2005, Chemnitz, Germany
Zwickau: Verlag Wissenschaftliche Scripten, 2005 (Berichte aus dem IWU)
ISBN: 3-937524-24-X
S.123-129
International Workshop on Modeling of Machining Operations <8, 2005, Chemnitz>
Englisch
Konferenzbeitrag
Fraunhofer IWM ()
size effect; ABAQUS; explicit

Abstract
In order to comprehensively investigate size-effects occurring in the miniaturization of cutting prozesses, material science, simulation and experimental testing are combined. Similarity mechanics are used to guide the parameter variation in two-dimensional finite-element simulations for orthogonal cutting using ABAQUS /Explicit. The rate-dependent material model used, leads to size-effects like an increase of the specific cutting force while reducing the depth of cut. The influence of rounded cutting-edges on the chipping process and the characteristics of the generated surface were investigated in 2D-simualtions. Rounded cutting tools are shown to produce severe plastic deformations of the generated surface and deep plastically deformed surface layers.

: http://publica.fraunhofer.de/dokumente/N-66445.html