Detection and Prediction of Corrosion-Affecting Parameters in Cold Flat Rolling Processes
Detection and Prediction of Corrosion-Affecting Parameters in Cold Flat Rolling Processes
复制标题
冷扁轧工艺中腐蚀影响参数的检测和预测
DOI：
10.1016/j.proeng.2017.04.066
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发表时间：
2016
期刊：
影响因子：
--
通讯作者：
Lampke
中科院分区：
文献类型：
--
作者：
Mehner;Awiszus;Lampke
冷轧DC04是一种广泛应用的制造工艺。只有仔细考虑相关的工艺参数，才能达到规定的状态。通过成形模拟对合适的参数进行数值表征，可以预测影响腐蚀的参数。采用的实验方法是X射线衍射法和浸泡试验法。利用有限元模拟对板材轧制过程进行了数值分析，这些模拟是用Simufact.Forming创建的。数值结果表明，相关参数(如摩擦力、单元形状和网格大小)的变化对模拟结果有很大影响。系统地研究了这些影响因素，并与实际冷轧过程进行了比较。基于这一比较，可以得出结论：模拟和实验的宏观力学结果(塑性应变和残余应力)可以与试件的腐蚀速率相关联。因此，可以预测板材对腐蚀的敏感性。因此，有可能使所选择的工艺参数和工艺路线适应实际工艺，以控制耐腐蚀性。
Cold flat rolling of DC04 is a widespread manufacturing process. A defined state can only be reached by careful consideration of relevant processing parameters. Characterizing suitable parameters numerically by means of forming simulation allows a prediction of corrosion-affecting parameters. The experimental methods applied are X-ray diffraction and immersions tests. Numerical analyses of flat rolling processes were performed using finite element simulations, which were created with simufact.forming. The numerical results show that the variation of relevant parameters (e.g., friction, shape of the elements, and mesh size) has a great impact on the simulation results. These influences are systematically studied and the results are compared with the real cold-rolling process. Based on this comparison, it could be concluded that the macromechanic results of the simulation and the experiments (plastic strain and residual stresses) can be correlated with the corrosion rates of the specimens. Thus, the susceptibility of the sheet metal to corrosion can be predicted. Therefore, it is possible to adapt the chosen process parameters and processing routes to the real process in order to control the corrosion resistance.
应变局部化对 AlMgSi0 5 合金点蚀的影响
DOI：
10.3390/met5010172
发表时间：
2015
期刊：
影响因子：
--
作者：
Nickel;Dietrich;Mehner;Spieler;Lampke
通讯作者：
Lampke
影响因子：
1.1
作者：
Eigenmann, B;Macherauch, E
通讯作者：
Macherauch, E