Determining The Weld Quality In Extrusion Welding

摘要

An overview is first given over various methods applied for testing of the bond strength across the extrusion weld obtained in hollow extruded profiles of light metals. A new innovative technique for measurement of weld quality has been developed and the mechanical characteristic of the method is then described. An application of the technique is finally presented where a contaminant film is observed to flow into the extrusion weld so that extrusion weld quality becomes lowered due to the presence of the film. The reduction of the weld quality in this case is quantified by the new technique.