Extrusion Process Optimization of Vanadium-bearing Aluminium Alloy for Mechanical Shell

In this paper,new vanadium-bearing aluminum alloy 6061-0.8 V specimens for mechanical shell were extruded at different extrusion speeds and temperatures,and the mechanical properties were tested and analyzed.The results show that when extrusion speed is increased from 2 m/min to 4.5 m/min and the extrusion temperature is increased from 375℃ to 475℃,the tensile and yield strength of 6061-0.8 V alloy firstly increases and then decreases,and the change of total elongation is very small..When the extrusion speed is increased from 2 m/min to 4.5 m/min,the tensile strength and yield strength increase by 18 MPa and 16 MPa,respectively. When the extrusion temperature increases from 375℃ to 425℃,the tensile strength and yield strength of 425 increase by 20 MPa and 24 MPa respectively.The optimum extrusion parameters for 6061-0.8 V aluminum alloy for mechanical shell are extrusion speed of 3.5 m/min and extrusion temperature of 425℃.