SPRAY CASTING

ABSTRACT This paper is designed to provide a basic review of spray casting. A brief overview of the historical development of spray   casting and the description of plant and equipment have been given. Following metallurgical characteristics of spray formed alloys, process parameters and solidification mechanism of spray deposition have been discussed in detail. Finally, microstructure and mechanical properties of the selected spray cast Al-Zn-Mg-Cu alloys have been presented and compared with conventionally and powder metallurgy processed 7xxx aluminium alloys.   Keywords: Spray casting, Osprey, LDC, Al-Zn-Mg-Cu