Composite extrusion

Abstract

The composite extrusion process allows the continuous embedding of reinforcing or functional elements into a metallic matrix material. Thereby, the economic advantages of the conventional direct extrusion can be combined with the advantages of a multi-material profile design. By using lightweight materials like aluminum or magnesium as a matrix, the profiles possess a low density associated with good mechanical properties. To improve the tensile strength and the stiffness of the profiles, high strength materials, such as high strength steel or ceramic oxide fibers can be integrated during the process. Furthermore composite extrusion allows the embedding of functional elements like isolated electric conductors, which allows a signal or data transmission through the profile.