Developments for the Production of Local Foamed Hollow Sections

Abstract

The investigation of the basic principles for the production of foamed out sections using magnesium foam for support structures by including the foaming process into the cold forming of sections to produce indiviually locally strengthened components is the subject of this research project. To absorb tensile stress, the metal foam will be strengthened with three-dimensional branched struts of high-tensile materials. The quantification of the influence of locally introduced foaming elements on e.g. stiffness alterations and the influence of the resonance frequency of the total structure will be effected by destructive but particularly also by nondestructive tests.

Investigations into Manufacturing Composite Profiles Having Local Magnesium-Foam Reinforcements

“…The increased foam stabilisation, which was demonstrated in the preliminary tests e.g. [17], and foam homogeneity obtained by using heat treated Mg-Zn alloys as the foamable precursor can be attributed to the diffusion of the zinc into the Mg-matrix. This effect could also be set for the manufactured foamable precursor by heat treating for 2h at 320 °C.…”