Quantitative analysis of galling in cold forging of a commercial Al-Mg-Si alloy

Kevin Le Mercier 1 Mirentxu Dubar 1, * Katia Mocellin 2 André Dubois 1 Laurent Dubar 1
* Auteur correspondant
1 LAMIH - Laboratoire d'automatique et de mécanique industrielles et humaines
2 CEMEF - Centre de Mise en Forme des Matériaux
Abstract : Multiple upsetting-sliding tests are performed at sliding velocities in the range of 20-200 mm.s-1 and at different plastic deformations to reproduce the local contact conditions experienced at the tool/workpiece interface during cold forging of a 6082 aluminium alloy. An original approach, able to evaluate accurately the volume of galled aluminium by means of surface topography acquisitions and energy dispersive spectrometry analyses, is presented. Galling is observed whatever the testing conditions and two types of regimes are underlined according to the sliding velocity. An interesting and strong correlation between the wear volumes and the friction ratio is also highlighted.
Keywords : AA6082 Wear Galling Upsetting Sliding Test Surface topography
Type de document :
Communication dans un congrès
International Conference on the Technology of Plasticity, ICTP 2017, Sep 2017, Cambridge, United Kingdom. Procedia Engineering, 207, pp.2298 - 2303, 2017, 〈10.1016/j.proeng.2017.10.998〉
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Soumis le : mardi 19 décembre 2017 - 16:36:05
Dernière modification le : jeudi 18 octobre 2018 - 01:22:28

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Kevin Le Mercier, Mirentxu Dubar, Katia Mocellin, André Dubois, Laurent Dubar. Quantitative analysis of galling in cold forging of a commercial Al-Mg-Si alloy. International Conference on the Technology of Plasticity, ICTP 2017, Sep 2017, Cambridge, United Kingdom. Procedia Engineering, 207, pp.2298 - 2303, 2017, 〈10.1016/j.proeng.2017.10.998〉. 〈hal-01667931〉

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