Změny mechanických vlastností slitin hliníku EN-AW 6082 a 7075 vyrobených protlačováním

摘要

In the article there are concentrated and partly commented the results of tensile and fatiguetests which were realised on the alloys EN-AW 6082/T6 and alloy EN-AW 7075/T6. Semi productsof these materials were produced by extruding technology and their structure demonstrated visuallyinhomogeneity (directionality). In the frame of experimental tests they were evaluated and mutuallycompared the mechanical parameters obtained on the samples produced in different directions to theextrusion axis. The reached results indicate that the fatigue properties of tested materials areinfluenced by the structure orientation only gently.