Effect of Permanent and Squeeze Casting Methods on Impact and Fatigue Properties of Cast 6063 Aluminium Rods

Abstract

This study presents an experimental investigation to determine the effect of permanent and squeeze cast methods on the impact and fatigue properties of AA6063 cast rods. The cast moulds (permanent and squeeze cast moulds) were fabricated and used to produce Aluminium rods. The test samples from cast rods were subjected to impact and fatigue test. In impact strength analysis, the toughness increased from 5.2-14 J with increase in pressure in squeeze casting. The fatigue life also increased from 5 cycles to failure at 1532.8 MPa to 11 cycles to failure at 2115 MPa with increase in pressure in squeeze casting as well. Therefore, squeeze cast products could be used in as-cast condition in engineering applications requiring high quality parts while permanent casting may be used in as-cast condition for non-engineering applications or engineering applications requiring less quality parts.