Kasra Shahabi - Department of Metallurgy & Material Engineering, Islamic azad university of Kermanshah, .kermanshah Iran

in this research the effect of twist extrusion on the mechanical properties and microstructure of AA6063 aluminium alloy was studied. Stress relief heat treatment used to relieve stresses of samples. The stress relieved specimens were extruded under twist in 3 passes. The mechanical properties treatment used to relieve stresses of samples. The mechanical properties and microstructures of samples investigated after each twist extrusion pass. The test results specified uniform distribution of precipitates in the AA6063 alloy microstructure and improvement of mechanical properties with increasing the extrusion passes from 1 to 3.

AA6063, twist extrusion, mechanical Properties, Microstructure