Transforming of Technical Findings for a Better Development of Branched Sheet Metal Products
Transforming of Technical Findings for a Better Development of Branched Sheet Metal Products
复制标题
转化技术成果，更好开发分支钣金产品
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
Birkhofer Herbert
中科院分区：
文献类型：
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作者：
Hirsch Nils;U. Günther;Birkhofer Herbert
本文提出了一个初步的分类结构的现有技术成果的线性分流。海德曼的过程模型被用来分析的技术成果。分析的结果是对过程和对象进行了分类。此外，还制定了标准，如半成品的类型和几何形状、子工艺、所用机器部件和所用材料的特定条件。在此基础上，建立了本体概念。该分类示例性地应用于使用线性分流制造的产品样品，并用作将技术限制转换为设计参数的基础。在第一种方法中，确定了一组制造限制。通过这些制造限制，数学优化的技术成果的影响是示例性的。为了计算给定型材的最佳生产方式，建立了一个混合优化程序（MIP），并用离散优化方法求解。这里的目标是尽可能接近给定的产品几何形状，同时考虑所有制造限制，例如最大法兰长度。如果技术发现导致凸缘长度的新的最大值，则该信息以MIP的新约束的形式进入过程。在凸缘长度的情况下，它们通过切割平面并入MIP中。
This paper proposes a preliminary classification structure of the existing technological findings of linear flow splitting. The process model of Heidemann was used to analyze the technological findings. The analysis resulted in a classification into processes and objects. Furthermore, criteria like the type and geometry of the semi-finished product, sub-processes, engaged machine components and specific conditions for the employed material are established. Based on this disposition, an ontology concept is established. The classification is exemplarily applied to a product sample manufactured using linear flow splitting and used as a basis for transforming technological restrictions into design parameters. In the first approach, a set of manufacturing restrictions is identified. By means of these manufacturing restrictions, the influence of the technological findings on the mathematical optimization is exemplarily shown. In order to compute the optimal way to produce a given profile, a Mixed Integer Program (MIP) is set up and solved using methods from discrete optimization. Here the goal is to approximate the given product geometry as closely as possible, while incorporating all manufacturing restrictions, such as the maximum flange length. If the technological findings result in a new maximum for the flange length, this information enters the process in the form of new constraints for the MIP. In the case of the flange length, they are incorporated into the MIP via cutting planes.