Manufacturing of Long Products Made of Innovative Lightweight Materials
Manufacturing of Long Products Made of Innovative Lightweight Materials
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由创新轻质材料制成的长产品的制造
DOI：
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发表时间：
2015
影响因子：
2.3
通讯作者：
D. Landgrebe
中科院分区：
文献类型：
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作者：
K. Richter;R. Müller;A. Kunke;V. Kräusel;D. Landgrebe
这项工作的目标是将创新的轻质材料加工成具有全局或局部定义属性的钣金部件和组件。例如，根据不同建筑材料的组成或具有特定特性的组件区域的目标设置，对组件和组件进行负载相关设计，以充分利用替代常规使用材料时的轻量化潜力。本文将介绍由镁合金和具有本地定义性能的高强度钢制成的卷形长产品的不同工艺链。根据要成型的材料种类和所需的产品特性，不同的温度管理需要不同的工艺。由于镁合金在室温下的成形性有限，在整个弯曲过程中，需要将成形区加热到200-225°C以上，以激活额外的滑动面，并避免半径内的任何失效。轧制成形锰硼钢时，局部硬化效应的实现需要至少一次工艺一体化热处理。对于这两种工艺，必须实现加热和冷却或淬火，以适当地制造具有所需质量的长产品。此外，必须考虑允许连续运行的经济生产的适当线速。本文将详细描述上述工艺链和策略的设计、有限元分析、实现和实验等研究成果。
The processing of innovative lightweight materials to sheet metal components and assemblies with globally or locally defined properties is the object of this work. It takes a load-dependent design of components and assemblies, for example, based on the composition of different construction materials or a targeted setting of component areas with specified characteristics to fully exploit the lightweight potential when substituting conventionally used materials. Different process chains for the manufacturing of roll-formed long products made of magnesium alloys and high-strength steels with locally defined properties will be presented in this paper. Depending on the kind of material to be formed and the desired product characteristics, different temperature managements are needed for capable processes. Due to limited formability at room temperature, magnesium alloys require a heating of the forming zones above 200–225 °C throughout the bending process in order to activate additional gliding planes and to avoid any failures in the radii. The realization of local hardening effects requires at least one process-integrated heat treatment when roll forming manganese–boron steels. For both processes, it is imperative to realize a heating and cooling down or quenching appropriate for the manufacturing of long products with the required quality. Additionally, proper line speeds that allow a continuously operated economical production have to be considered. Research results including design, FEA, realization and experimentation of the mentioned process chains and strategies will be described in detail.