DYMAT 2009
Volume 1, 2009
DYMAT 2009 - 9th International Conference on the Mechanical and Physical Behaviour of Materials under Dynamic Loading
Page(s) 281 - 287
Section Experimental Techniques
Published online 15 September 2009
DYMAT 2009 (2009) 281-287
DOI: 10.1051/dymat/2009039

High speed blanking: An experimental method to calculate the induced cutting forces

C. Gaudillière, N. Ranc, A. Larue and P. Lorong

LMSP, UMR CNRS 8106, ENSAM, 151 boulevard de l'Hôpital, 75013 Paris, France

Published online: 15 September 2009

To increase the productivity, blanking professionals are interested to control a new machining process that involves the high speed cutting at around 10 m/s. Nevertheless, the inherent hard dynamic of such a process makes it difficult to develop a high speed punch press. The cracking or fracture phenomenon governing the cutting process has to be well understood in order to correctly design the machine support and the tools. In order to observe this phenomenon and to control the cutting speed a specific experimental device has been developed. In this study, the goal is to calculate the shear cutting forces imposed on the specimen. A new method allowing the calculation of shear forces and taking the proposed test configuration into account is explained and is validated through numerical simulation. This technique has been successfully implemented for the determination of shear forces of a micro alloy steel S600M.

© EDP Sciences 2009