Friction Modelling in Long Bearing Channels During Multi-hole Extrusion of Aluminium Alloy☆
Friction Modelling in Long Bearing Channels During Multi-hole Extrusion of Aluminium Alloy☆
复制标题
铝合金多孔挤压长轴承通道的摩擦建模☆
DOI：
10.1016/j.matpr.2015.10.021
复制
发表时间：
2015
期刊：
影响因子：
--
通讯作者：
W. Reimers
中科院分区：
文献类型：
--
作者：
Vidal Sanabria;S. Mueller;W. Reimers
铝合金 EN AW-6060 和热加工钢之间的摩擦实验是在苏黎世联邦理工学院 IVP 的扭转摩擦测试中在低常压下进行的，以及在柏林 ERDC TU 柏林使用新的轴向摩擦测试在高常压下进行的。摩擦边界层的微观结构分析和硬度图证实了粘着条件下机械性能的变化。结合摩擦实验结果和该合金的热机械行为，开发了一种新的摩擦模型。对不同摩擦条件下使用多孔模具的挤压模拟进行了评估并对结果进行了比较。
Friction experiments between aluminum alloy EN AW-6060 and hot working steel were carried out at low normal pressure with the Torsion-Tribo-Test at the IVP ETH Zurich, as well as at high normal pressure using the new axial friction test at the ERDC TU Berlin. Microstructural analysis and hardness mapping of the friction boundary layer confirmed a variation of the mechanical properties under sticking conditions. Combining the friction experiment results and the thermo-mechanical behavior of this alloy, a new friction model was developed. Simulations of extrusion using multi-hole dies under different friction conditions were evaluated and the results compared.