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The significantly increasing interest and extensive research activity in the field of magnesium-based materials are ascribed to the demand for a consistent implementation of lightweight construction. The automobile industry has contributed to this development through a continuing demand for decreased exhaust emissions and reduced fuel consumption. One highly effective way to achieve reduced vehicle weight is the application of alternative materials with similar properties but lower mass. For example, magnesium has a higher rigidity than aluminum as well as a higher strength-to-weight ratio than steel. It is also excellent for machining. As a result, magnesium compounds are particularly well suited to lightweight constructions. The main limiting factor for the application of magnesium is its relatively low level of corrosion stability. One possibility to protect materials from corrosion is to use corrosion-resistant metallic coatings. This approach has an advantage over varnish or plastic layers because of the higher mechanical resistance of the coating. Two-or multilayer metallic compounds, which can be several millimeters thick, are produced mainly by using mechanical processes. The most commonly applied processes are roll or explosion cladding as well as a variety of extrusion methods. Whereas in coating techniques, the intended change in material properties or functional characteristics is restricted to the area near the surface, these approaches allow the formation of semifinished cross sections with optimized structures. Recent investigations into compound extrusion reveal that metallic bonding is possible between aluminum (face-centered cubic crystal system) and magnesium (hexagonal close-packed system), despite their different lattice structures. A distinct diffusion zone between a wrought magnesium alloy (AZ31) and a standard aluminum alloy (6060) was achieved. [1] The extensive study into identification and characterization of the formed microstructure and the properties of the created compound demonstrates an alternative approach for compound manufacturing.

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A universal theory for the bonding of metallic materials does not exist. For new material combinations and new joining technologies the bonding properties have to be examined individually. The factors affecting bonding behavior and characteristic like the bond strength have to be investigated. This paper presents a method for generating composites by a forming process and shows innovative possibilities to test and evaluate relevant parameters of the bonding process

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Hollow shapes, particularly the shafts of road vehicle power trains, are a major potential for technical innovation since these components have to be especially strong while component weight and unit costs are highly restrictive. This strategy for innovation requires focusing on a wide range of disciplines of product and technology development and demands intensive and advanced interdisciplinary development of the required production technology. Hollow shapes can be produced with the spin extrusion process. Spin extrusion is a flexible rotatory pressure forming process which can be applied in dimensional ranges that cannot be attained by comparable processes, not in a cost‐effective fashion or for very expensive materials. Spin extrusion is an incremental technique, meaning there are also the known difficulties standing in the way of analytically describing processes and targeted process control. The energetic approach has proved to be the most practicable because it makes it possible to differentiate between a wide range of factors and parameters having an impact on the process while applying them to machine and process control. The results of process development was a new processing principle for manufacturing hollow shaft components by forming for specific needs of the automobile industry and other industries with major accuracy and safety requirements.