Production of Multi-Directional Widened Profiles

在本研究项目中，载荷优化结构部件的谱应通过横截面在任意方向上变化的型材来扩大，这些型材可通过辊轧成形连续或至少部分连续地生产。因此，要开发一种宽型材辊轧成形和间断辊弯边的工艺组合，以在腰形板坯中形成高度变化的卷边。首先，必须产生描述和提出这种工艺组合的布局方法的科学基础，例如，通过横向板材流动确保低板材变薄，同时避免屈曲和波纹。为此，需要进行工艺参数的分析、工具系统的设计和实现以及对所获得结果的验证。在下一个项目阶段，这些高度变化的珠状板可以辊轧成形为型材。之后，通过调平作为材料储存器的卷边，可以在没有太多片材变薄的情况下扩展型材。

In this research project the spectra of load-optimized structural components should be enlarged by profiles with cross-sections varying in arbitrary direction that are continuously or at least partially continuously producible by roll forming. Therefore a process combination of roll forming of wide profiles and interrupted roll beading is to be developed to form height varying beads in a waisted sheet blank.Primarily the scientific fundamentals to describe and to propose layout methods for this process combination have to be generated, e.g. to ensure low sheet thinning by transversal sheet material flow and simultaneously avoiding buckling und rippling. For this purpose the analysis of the process parameters, the design and realization of a tool system and the validation of the gained findings are to be done.In a next project phase these height varying beaded sheets could be roll formed to a profile. After-wards by levelling the beadings which serve as a material reservoir the profile could be expanded without much sheet thinning.