Influence of the contact area and diffusion conditions during the fabrication of aluminum – magnesium – compounds

Abstract

The increasing demand for efficiency and energy savings can be satisfied by innovative lightweight construction, especially in the automotive and mechanical engineering industry. One approach is the use and development of magnesium alloys for industrial applications. Due to the high affinity for oxygen magnesium has a low corrosion resistance with limits its application considerably. In order to ensure the appropriate corrosion protection, conventional methods cannot be used, but cladding can supply the required protection. The goal is to create a protective layer resistant to mechanical damage. All the layers in such a composite have to withstand bending and torsion loads, but to realize this, there must be a material bond between the lamination layers. In order to determine the essential conditions for the bond formation a lateral extrusion device was used. A bond initially of aluminum and magnesium alloys was formed between semi-finished products and the data generated will be presented in this document, with special focus on how an added inter layer compounds influenced the bond.

The Process of Co-Extrusion – An Analysis

“…In detail OSAKADA and ALCARAZ analyzed the co-extrusion process by the upper bound method. Current works surrounding the challenges of co-extrusion and composite extrusion were published by MISIOLEK [5,6], SCHIKORRA [7], GRITTNER [8], MUELLER [9,10] and POPP [11]. In particular, MUELLER and POPP also performed the co-extrusion of aluminum and magnesium too.…”