Metal Fused Filament Fabrication Process—A Review

Rapid prototyping to expensive items like sophisticated spare parts are just a few of the high-end products that can now be made using additive manufacturing (AM). The future of the manufacturing industry has been influenced by AM, which has advantages of lower material utilisation, geometric freedom, and production automation imaginable. With the rapid expansion of additive manufacturing (AM) applications, feedstock materials have undergone a significant transformation. These materials now include metals, composites, polymers, and ceramics. The development in metal feedstock material discoveries has made it possible to investigate the use of new AM methods. The very popular and economical material extrusion AM technique is fused filament fabrication (FFF). The article outlines the key concepts for FFF-based 3D printing of metal items. The process involves stacking filament that contains molten metal. Steel, ceramic, carbide, aluminium, and copper powders are utilised in the Metal Fused Filament Fabrication (MFFF) process. The powder particles need to be a particular size and form. The combination is then used to create filament. The preparation of the filament and the printing of the object are both covered in the paper. Analyses are done on the potential applications for MFFF technology. It has been shown that the technique holds great promise for various domains. The potential for further study in this field is also highlighted.