Matériaux & Techniques
Volume 81, Number 1-2-3, 1993
|Page(s)||37 - 43|
|Published online||19 April 2017|
Caractèrisation du frottement au cours de la mise en forme à la tempèrature ambiante
Measuring friction for cold forming processes
1 Laboratoire de Génie Mécanique, MECAMAT, Unité de Recherche associée au C.N.K.S. Université de Valenciennes et du Hainaut Cambrésis, Valenciennes, France
2 Actuellement à l'ICAM, Département Génie Mécanique, Lille, France
The surface mechanic behaviour in metal forming operations is studied by a new indentation-translation test which involves a localized plastic deformation in the workpiece surface vicinity. Applied loads are measured during the indenter displacement and friction stress, contact pressure are deduced from mechanical analyses for the proposed test.
Identification of surface constitutive equations is performed with the test for spheroidized low carbon steel workpieces. A reference zinc plwsphating and stearate soaping treatment is used for the presented results. Experimental results are identified by a se cond order relationship related to contact pressure and Jlow shear stress. Finally, the influence of sliding velocity is enhanced.
© SIRPE 1993
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.