The DGM Expert Committee Extrusion deals with scientifically and industrially relevant questions concerning the extrusion process, but also with new applications of extruded products. It sees itself as a platform for the exchange of experience between extrusion plants, suppliers as well as universities and research institutes, some of which can conduct research on their own extrusion lines. The industrial members come from production, quality assurance and product or process development, but also from mechanical engineering, plant engineering or toolmaking.
The projects in which the technical committee participates or plays a supporting role are concerned with securing the competitiveness of extruded products. For example, benchmarks are used to compare specific energy consumption, die service life, etc., in order to enable extrusion plants to align themselves with the current state of the art. In the case of research proposals, the Technical Committee supports the applicants in setting practice-relevant objectives and in discussing the results. In this way, close cooperation is maintained between research and practice.
Extrusion is a forming process for the production of rods, wires, tubes and profiles in which metals (aluminum, copper, etc.) or their alloys are pressed through a shaping die. In the automotive sector, demand for extruded profiles has recently increased. In electrical engineering and mechanical engineering, extruded profiles are used, for example, as finned heat sinks or support profiles. In medical technology, extruded profiles have proven their worth, for example for body-absorbable materials. In all areas, successful cooperation between materials development and tooling technology development has been decisive for successful implementation.
Due to the many possible applications of extruded products, including in lightweight construction, demand will continue to rise in the future. It is expected that the further development of forming processes will also open up new areas of application for composite materials. In order to solve the associated tasks - and thus secure Germany's competitiveness in this area - close cooperation between industry and research institutes or universities will continue to be necessary in the future.
A major challenge in the development of new products in the coming years will continue to be better simulation of the extrusion process and the properties of the resulting extruded products. To this end, it will be necessary to incorporate advances in process simulation even more strongly into development processes in the future - as is already being done successfully in other manufacturing areas such as casting, forging or sheet metal forming.
The progress made in recent years in accurately describing real friction conditions in the forming zone is very encouraging and opens up new prospects for new products.
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