Validation of Simulated Material Flow in Aluminium Hot Extrusion with a Novel Visualisation Method
Commonly used visualisation methods for observing material flow during extrusion are either labor intensive, prone to loss of the tracer pattern or subject to different flow behaviour than occurs in practice. A novel visualisation method using a copper mesh inlay and computer tomography was developed and used to visualise the flow behaviour of partially extruded EN AW-6082 aluminum billets. In parallel with the physical experiments, a finite element (FE) model was developed and compared with the experiments. The material flow was readily observable from the computer tomography images and the FE model data closely matched the experimental results.
Knut Marthinsen, Bjørn Holmedal and Yanjun Li
D. Horwatitsch et al., "Validation of Simulated Material Flow in Aluminium Hot Extrusion with a Novel Visualisation Method", Materials Science Forum, Vols. 794-796, pp. 15-20, 2014