Some Investigations on Surface Quality of Aluminium Matrix Composite Developed Using Modifi ed FDM Pattern Based Rapid Investment CastingAuthor : Rupinder Singh, Jagdeep Singh and Sunpreet Singh
Volume 3 No.2 July-December 2014 pp 1-4.
The prototypes prepared by using fused deposition modelling (FDM) usually have highly rough surface due to staircase effect. This is the main obstacle in rapid investment casting (RIC) where FDM based replicas are employed as master pattern. Present research work is focused to improve the surface finish of aluminium matrix composite (AMC) by altering the levels of process variables (like: dimension of master pattern, density of master pattern and number of slurry layers) using Taguchi L9 OA. FDM fi lament with 0%nylon-30%Al-10%Al2O3 proportion has been used for preparation of master pattern. AMC was developed using Al6063 alloy through RIC route at recommended parameters. Results indicated that input parameters significantly affected the roughness of AMCs prepared.
Aluminium Matrix Composite, Fused Deposition Modelling, Investment Casting, Surface Roughness.