ABSTRACT
This chapter is focused on increasing the application domain of fused deposition modelling by combining it with the investment casting process for the preparation of in-house functionally graded material. The step-by-step procedure for preparation of functionally graded materials (by using reinforced fused deposition modelling patterns in investment casting) for field engineers is highlighted. A case study of reinforced fused deposition modelling filament with 60% nylon 6–30% aluminum–10% aluminum oxide (by weight) is also outlined. This chapter also highlights the affect on surface roughness, dimensional accuracy, and wear of aluminum metal matrix composite (prepared as functionally graded materials) through an alternative route. Finally, it was established that with regard to the surface roughness of functionally graded materials, the density of the pattern and the number of investment casting slurry layers have significant contributions. Similarly for dimensional accuracy, the size of the pattern is the most significant factor, followed by the number of slurry layers. For wear-related properties of functionally graded materials, the number of slurry layers is the most significant factor followed by the density of patterns.
