Impact Extrusion – the Process

One idea that not everyone is likely to have, is that plastic deformation is possible with many materials. In impact extrusion – a mass forming process – pressure is exerted on the workpiece on a single or multi-stage press and, once the elastic deformation is exceeded, a permanent deformation of the part is achieved. In the case of a multi-stage forming process, this part is then transported to the next stage, where it undergoes another deformation.

This produces parts with extremely good dimensional and shape tolerances, a very good surface and – an advantage for most applications – increased hardness resulting from the process itself.