Römisch D, Merklein M (2022)
Publication Language: English
Publication Type: Conference contribution, Conference Contribution
Publication year: 2022
Pages Range: 507 - 514
Intelligent material combinations for the production of multi-material systems as well as lightweight construction to save weight are becoming increasingly important in industrial applications. However, the joining process of dissimilar materials poses challenges to established joining processes due to different mechanical properties and chemical incompatibilities and lead to a need for new, versatile joining technologies. The use of cold extruded pins made from the sheet metal plane is the subject of current research due to the added potential for weight saving and the advantage of process-induced work hardening. To produce these pins and especially multi-pin structures, however, new tool concepts are needed. In the present work, a multi-acting tooling design is presented to produce a multi-pin array consisting of a 3x4 matrix by extrusion from the sheet metal plane. The tool allows the punches, the blank holder and the ejector to be controlled independently. The individual pins can be formed both simultaneously in one stroke and sequentially to control the formation of each pin individually. The numerical model utilised for designing the active parts of the tool is used to analyse the complex, resulting material flow and to gain insights into the pin forming. Furthermore, first experimental results of cold extruded multi-pin arrays are presented to obtain a basic scientific understanding of the influence of the tool on the process in combination with the numerical results.
Römisch, D., & Merklein, M. (2022). Experimental and Numerical Analysis of Cold Formed Multi Pin Structures Using a Multi-Acting Tool Design. In Proceedings of the 12th Tooling Conference and Exhibition Tooling 2022 (pp. 507 - 514). Örebro, SE.
Römisch, David, and Marion Merklein. "Experimental and Numerical Analysis of Cold Formed Multi Pin Structures Using a Multi-Acting Tool Design." Proceedings of the 12th Tooling Conference and Exhibition Tooling 2022, Örebro 2022. 507 - 514.