Metal 3D Printing: Debunking 7 Common Misconceptions

Despite rapid advancements, many still underestimate the true capabilities and limits of metal 3D printing. These myths only slow broader adoption. In this article we cut through the noise, set the record straight, and give you the facts you need to make informed decisions.

1. Metal 3D printing is too expensive

While high‑end metal additive manufacturing (AM) systems can reach up to a million dollars, the market has shifted toward more affordable solutions. Several manufacturers now offer machines below $200,000, opening the door for small‑to‑medium enterprises and machine shops. Companies such as Xact Metal, Laser Melting Innovations (LMI), and One Click Metal have introduced powder‑bed fusion systems that use cost‑effective components—diode lasers, Cartesian‑motion scanners, and optimized mechanical architectures—to keep prices under €100,000.

Other innovators, like Desktop Metal and Markforged, employ a hybrid extruder‑sintr‑cycle that prints metal parts using polymer‑encased powders extruded through a nozzle, then sintered in a furnace. These systems, priced under $200,000, reduce both hardware costs and operating expenses, making metal AM more accessible than ever.

2. Most metal AM systems are similar

In reality, there are five distinct metal 3D printing technologies, each with its own nuances. Even within a single category—such as Powder Bed Fusion (PBF)—vendors innovate in recoater design, laser configuration, and software integration. For instance, VELO3D’s PBF printer uses a unique recoater and tightly integrated software, enabling near‑support‑free builds. Aurora Labs is pushing the envelope with a PBF system capable of 1,000 kg of metal per day.

The complexity of the field is why we recommend reviewing our Definitive Guide to Metal 3D Printing for a comprehensive overview.

3. Metal 3D printing is suitable only for low‑volume production

While metal AM excels at small‑batch production, binder‑jetting platforms can scale to medium and high volumes. 3DEO’s patented Intelligent Layering technology combines standard Metal Injection Moulding (MIM) powder, binder spraying, and CNC milling to produce up to 250,000 parts per year.

Desktop Metal’s Production system can print 12,000 cm³ per hour—over 60 kg of metal parts—making it ideal for complex parts at scale.

4. High‑end applications are the only drivers of demand

Initially adopted by aerospace and medical sectors, metal AM is now widely used for spare parts, functional prototypes, and custom tooling. A 2023 EY report highlights that additively produced molds, jigs, and fixtures are a primary benefit, improving efficiency across many industries.

Built‑Rite, for example, uses Desktop Metal’s Studio System to fabricate quick‑turn mold components, cutting costs by 90 % and lead times by 30 %. The process also reduces material use by 40 %.

5. Metal 3D‑printed parts are inferior to conventionally manufactured parts

Early skepticism has faded as manufacturers demonstrate that AM parts meet or exceed the performance of cast or machined counterparts. Critical components—rocket engine blocks, heat exchangers, turbine blades—now routinely use AM‑fabricated metal parts, delivering lighter weight and improved performance.

6. Metal 3D printers can print only small parts

Large‑scale metal AM is driven by technologies like Direct Energy Deposition (DED) and Electron Beam Additive Manufacturing (EBAM). Sciaky’s EBAM 150, for example, offers a 3,708 × 1,575 × 1,575 mm build volume, enabling the creation of components that would take years to forge.

Lockheed Martin used EBAM to print 116 cm‑diameter fuel‑tank domes in three months—an 87 % reduction in lead time compared to traditional forging.

7. Powder reuse negatively impacts material properties

Recycling unmelted powder is common practice in PBF. Controlled reuse—mixing recycled with fresh powder—has been shown to preserve tensile and yield strength. Stratasys Direct Manufacturing’s research on Inconel 718 and 625 confirms negligible impact on mechanical properties.

Renishaw’s studies with recycled Ti‑6Al‑4V ELI powder also found no significant degradation over 38 builds, proving that responsible recycling can be both economical and sustainable.

Overcoming misconceptions

As metal 3D printing matures, informed dialogue will drive wider adoption. By understanding the true capabilities—and limits—of the technology, manufacturers can accelerate the industrialization of AM, unlocking its benefits across a broader range of markets.