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The future of metal AM
Fig. 4 Metal AM process monitoring and melt pool analysis (Courtesy Flow-3D)
In ten years, many of the current problems with metal BJT should be resolved, assuming companies continue to invest in it. Part of the solution will be an improved understanding of the process, coupled with simulation software. Other improvements will come from a wider range of available binders and materials. These advancements will make it more compelling for the automotive industry to adopt BJT for production volumes. This industry has been hesitant to use metal PBF due to its slow speed and relatively high production costs.
Other developments Material Extrusion Over the coming decade, we will see an increase in metal Material Extrusion (MEX) machines among educational and research organisations, as well as some hobbyists and engineers working from home. These machines cost less to purchase and maintain and are easier to use, although a sintering furnace is still required. We anticipate new metal filaments that melt at lower temperatures.
“Today, only a few alloys, such as Scalmalloy, have been developed specifically for metal AM. This field will experience significant developments in the coming decade. Watch for entirely new alloys that deliver better performance at lower cost...” 186
Metal Additive Manufacturing | Autumn 2021
Custom alloys Most metal AM alloys are conventional materials that are adapted for Additive Manufacturing. Today, only a few alloys, such as Scalmalloy, have been developed specifically for metal AM. This field will experience significant developments in the coming decade. Watch for entirely new alloys that deliver better performance at lower cost compared to materials for conventional manufacturing. Integrated simulation and production software We also expect to see substantial development in integrated simulation and production software over the next decade. This software will simulate the complete manufacturing process of an AM part, including the location of support material, residual stress, and the resulting metallurgical properties. Based on simulation results, combined with more advanced melt pool monitoring, machines will automatically adapt to produce better quality parts.
© 2021 Inovar Communications Ltd
Vol. 7 No. 3