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Star Trek aficionados are well versed in the wonder of the “Replicator,” a machine that initially synthesized meals on demand, but eventually evolved to magically produce any number of complex objects, from clothing to the USS Enterprise’s spare parts.

3D printing, and in particular, recent advances in metal additive manufacturing (AM), have many likening what’s possible with the technology to the sci-fi promises of the Star Trek universe. Proponents of metal 3D printing are bullish on the potential, touting the ability to accommodate complex structures, decrease materials waste and reduce lead times for specific classes of traditionally manufactured metal parts.

However, the general lack of understanding of the process, especially the need to redesign parts to achieve the true benefits, remains a significant hurdle to adoption as well as an ongoing inhibitor to metal AM return on investment (ROI).

While metal 3D printing is indeed a game changer, most companies haven’t fully capitalized yet because they aren’t taking the opportunity to redesign parts, contends Tom Houle, director of LUMEX NA for Matsuura USA.

“When we see parts that are designed to be metal 3D printed instead of converted to metal 3D printing then the result is a part that is lighter, uses less materials, creates less scrap and waste and runs on a machine 24/7, lights out,” he explains. “Those are four game-changing aspects of metal 3D printing and why the technology will eventually be commonplace.”

Designing for Metal AM is Key

For now, metal AM is not exactly a manufacturing floor or engineering department staple, but it is making headway. A recent survey from Market Reports World projects the metals 3D printing market to grow at a compound annual growth rate (CAGR) of almost 22% from 2021 to 2025, increasing revenue by $1.3 billion. Grandview Research is projecting 27.8% CAGR growth between 2020 and 2027, fueled by increased adoption in the medical, automotive, and aerospace and defense sectors.