Modeling and control of damage evolution in caliber hot rolling of steel rods (A01)

该子项目的目的是提供方法，用于对不同加工策略下的口径轧制过程中发生的损伤发展进行验证评估，以实现最小损伤的工艺顺序布局。因此，在口径轧制的载荷制度的变化范围，以及其对损伤演化的影响，确定使用常见的损伤模型进行评估和扩展，根据需要。为了考虑相关体积成形工艺链上的损伤演变，生产具有不同损伤程度的由16MnCrS5制成的半成品以通过挤压进行进一步加工。

The aim of the subproject is to provide methods for a verified evaluation of damage development occurring during caliber rolling with different processing strategies in order to allow for a process sequence layout with minimum resulting damage. Therefore, the variation range of the load regime in caliber rolling as well as its influence on damage evolution is determined using common damage models that are evaluated and extended as required. In order to consider damage evolution over a relevant bulk forming process chain, semi-finished products made from 16MnCrS5 with different degrees of damage are produced to be further processed via extrusion.