Property control during spinning of metastable austenites

亚稳奥氏体旋压过程中的性能控制

• 批准号: 424335026
• 负责人: Professor Dr.-Ing. Werner Homberg
• 金额: --
• 依托单位: Fachgruppe Regelungstechnik und Mechatronik (RtM)
• 依托单位国家: 德国
• 项目类别: Priority Programmes
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/424335026?language=en
• 关键词: Property; control; during; spinning; metastable

The overall objective of the research project is the realisation of a property control within spinning processes. This is intended to enable the locally limited and reproducible adjustment of physical component properties - in an environment characterised by a large number of process parameters and a process sequence that can hardly be predicted. By specifically influencing phase transformation processes during production, high-performance components are to be created that have defined graded mechanical (hardness) or ferromagnetic properties and thus offer added value, e.g. with regard to sensory use. Very high demands are placed on the local resolution of the grading, but also on the shape and dimensional accuracy as well as the surface quality. Within the spinning process, therefore, locally limited areas are to be created through controlled process management of the parameters temperature and degree of forming, which fulfil a specified property profile as precisely and reproducible as possible. An increase in the complexity of the components and process steps to be considered is planned during the three phases of the project. The following sub-goals could be defined for the upcoming funding period: • Robustification of the property-controlled process to demonstrate the transferability of property control to other material batches and materials. • Increasing complexity by transitioning from axial (1D) and axial-angular (2D) graded structures to additionally radial graded structures (3D). • Advancement and optimization of property control considering real-time capability under production-like conditions. • Quantified evidence of property enhancement based on components produced with property control. • Derivation of design principles for the property-controlled extrusion process in the form of systematization and methodization.

该研究项目的总体目标是实现纺纱过程中的财产控制。这是为了能够在以大量工艺参数和难以预测的工艺序列为特征的环境中，对物理部件特性进行本地有限且可重复的调整。通过具体影响生产过程中的相变过程，将创造出具有分级机械(硬度)或铁磁特性的高性能部件，从而提供附加价值，例如在感官应用方面。对分级的局部分辨率要求很高，对形状和尺寸精度以及表面质量也有很高的要求。因此，在旋压工艺中，通过对成形温度和成形程度的参数进行受控工艺管理来创建局部有限区域，这些参数尽可能精确且可重现地满足特定的性能曲线。在项目的三个阶段期间，计划增加要考虑的组成部分和工艺步骤的复杂性。可为即将到来的供资期间确定以下子目标：·将财产管制程序具体化，以证明财产管制可转移到其他材料批次和材料。·通过从轴向(1D)和轴角(2D)梯度结构过渡到额外的径向(3D)梯度结构，增加了复杂性。·改进和优化财产控制，考虑到在类似生产条件下的实时能力。·基于通过属性控制产生的组件的属性改进的量化证据。·以系统化和方法化的形式推导出性能控制挤压工艺的设计原则。