Inspection method of aluminium extrusion process

The paper presents the method for the monitoring of aluminium extrusion processes. The developed hybrid method combines the advantages of computer based, simultaneous infrared and visible image analysis for surface inspection of the profile directly after leaving the die. Thermograms present the temperature distribution on the surface of the extruded profile and contain information about the extrusion process. The proposed inspection system can be applied in industry for on-line monitoring of aluminium extrusion processes and the inspection of defects arising in extruded products.