An Investigation of Mechanical Properties of 6 series Aluminium Alloy after Thixoforming Process

Abstract

Thixoforming process is new technique for manufacturing complicated and net shape components through which high strength materials can be formed easily. Thixoforming process consists of an injection into the component die of material at semisolid state. In order to get the thixotropic behavior of the material (viscosity which decreases with increase of shear stress and time), In this study 6-series Al alloys has been extruded by thixoextrusion process (Temperature ranging from 550 to 590°C) and its mechanical properties was compared. In this Thixoforming process by apply the advantage of semi solid processing, the applied pressure of extrusion is decrease and the desired mechanical properties were improved as comparison to conventional extrusion process of 6-series Al alloy under T6 condition. For example: Tensile and yield strength of samples of Thixoforming product improve and sufficiently agree with same expected properties of 6-series Al alloys and hardness, elongation is increase with Thixoforming process.