Qualities and use of beams with expanded metal

摘要

The rotary expander technique can be used for integrating expanded metal with solid sheet in long cold-formed metal profiles. This technique will distribute the material to where it's best needed. Valuable qualities possible are: -low weight and optimal strength -low energy transmission (noise and heat) -soft deformation and favorable energy absorbing properties -good fatigue resistance -high flexibility in design and product qualities These qualities are useful in applications like: -light and strong steel framing systems for buildings -energy absorbing support structures in road equipment -light vehicles -construction pipes and profiles Manufacturing of expanded metal implies a strain hardening of the mesh. This effect is more obvious in rotary expander manufacturing, due to a forced extension to match the solid metal strips. The use of strain hardened material to make light profiles with high stiffness. In combination with plaiting, it is possible to produce rigid C- and Z-studs.