Product property controlled multi-stage hot sheet metal forming
产品性能受控的多级热金属板材成型
基本信息
- 批准号:424334660
- 负责人:
- 金额:--
- 依托单位:
- 依托单位国家:德国
- 项目类别:Priority Programmes
- 财政年份:
- 资助国家:德国
- 起止时间:
- 项目状态:未结题
- 来源:
- 关键词:
项目摘要
Multi-stage hot sheet metal forming enables the production of hardened geometrically complex components. However, this process involves time-varying interactions between the blank and the tools, which are difficult to estimate and have an effect on the thermo-mechanical history. These interactions ultimately influence the resulting product properties, which are therefore subject to undesirable fluctuations. In order to achieve a robust, efficient, and versatile production, this project aims to sensorially capture the interactions in multi-stage hot sheet metal forming, compensate them with suitable actuator technologies, and to closed-loop control the product properties accordingly. In this 3rd phase, the closed-loop control of the hardness distribution coupled with the thinning distribution for different areas of a press-hardened hat-shaped profile with one bent frame will be implemented in a progressive die with extended actuator technology under near-process conditions. The developed concept for controlling the product properties in multi-stage hot sheet metal forming will be validated and its transferability demonstrated based on this setup. It should be noted that the fundamental control concept of the third phase corresponds to the hierarchical optimization-based concept developed in the second project phase, with various extensions aimed at adapting to near-process conditions. Firstly, the tool and actuator technology as well as the implemented sensors must meet the requirements of a high-volume production. Moreover, the hardware and the software (soft sensors, estimators, control) must exhibit the necessary robustness and real-time capability. Therefore, in order to fulfill the mentioned requirements, the temperature measurement will first be robustified, expanded across the component width, and the temperature and forming modeling will be adapted. Additionally, the improvement of robustness and accuracy will be investigated through expanded disturbance estimation and compensation, with the implementation of a thermal imaging camera, a 3D laser sensor, and the 3MA system. To quantify the improvement of the resulting product properties by the developed closed-loop control, the product properties of manufactured components from experimental series with an activated closed-loop control will be compared to those without active control experiments. In parallel with the investigations, transferable design guidelines will be determined from the perspective of forming and control engineering.
多阶段热板金属成形使生产硬化几何复杂的部件。然而,这一过程涉及坯料和工具之间随时间变化的相互作用,这很难估计,并对热机械历史产生影响。这些相互作用最终影响所得产品的性质,因此受到不希望的波动。为了实现稳健、高效和通用的生产,该项目旨在从感官上捕捉多阶段热金属板成形过程中的相互作用,用合适的执行器技术进行补偿,并相应地对产品性能进行闭环控制。在第三阶段,采用扩展致动器技术,在近工艺条件下,在级进模中实现了一弯压硬化帽形型材不同区域的硬度分布和细化分布的闭环控制。在多阶段热板料成形中控制产品性能的发展概念将得到验证,并在此基础上证明其可转移性。需要注意的是,第三阶段的基本控制概念与第二阶段开发的基于分层优化的概念相对应,并进行了各种扩展以适应近工艺条件。首先,工具和执行器技术以及实现的传感器必须满足大批量生产的要求。此外,硬件和软件(软传感器、估计器、控制)必须表现出必要的鲁棒性和实时性。因此,为了满足上述要求,温度测量将首先进行鲁棒化,扩展到整个组件宽度,并适应温度和成形建模。此外,通过扩展干扰估计和补偿,通过热成像相机,3D激光传感器和3MA系统的实现,将研究鲁棒性和精度的提高。为了量化开发的闭环控制对最终产品性能的改善,将实验系列中具有激活闭环控制的制造部件的产品性能与没有主动控制实验的产品性能进行比较。在调查的同时,将从成形和控制工程的角度确定可转移的设计准则。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Professor Dr.-Ing. Thomas Meurer其他文献
Professor Dr.-Ing. Thomas Meurer的其他文献
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{{ truncateString('Professor Dr.-Ing. Thomas Meurer', 18)}}的其他基金
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