Additive Manufacturing Of Metals: The Technolog... May 2026

Modern AM can process a wide range of engineering materials, including steel, aluminum, titanium, nickel-based superalloys, and even precious metals. However, the rapid heating and cooling cycles inherent to these processes create unique microstructures that differ significantly from traditionally wrought parts.

Most metal AM processes involve selectively melting or joining metal feedstocks, typically in powder or wire form. The three most industrially relevant technologies include: Additive Manufacturing of Metals: The Technolog...

Requires extensive post-processing (support removal, heat treatment) Rapid prototyping and on-demand manufacturing Limited library of printable "certified" alloys Improved energy efficiency and lower carbon footprint Potential for metallurgical defects like porosity Industry Expert Perspectives Modern AM can process a wide range of

Parts may suffer from defects such as anisotropy, micro-porosity, gas entrapment, or residual stresses. Advantages and Limitations Extreme design freedom and customization High initial equipment and production costs Significant reduction in material waste and scrap and even precious metals. However

Uses a high-power laser to selectively melt layers of metal powder. It is known for producing high-precision, dense parts but often requires time-consuming post-processing.