Aerospace Giant IHI Bets on Freemelt E-Beam 3D Printing for Next-Gen Turbine Alloys

Japanese aerospace conglomerate IHI is making a significant bet on electron-beam 3D printing for next-generation turbine development. The company has purchased its third Freemelt E-PBF (electron-beam powder bed fusion) system through IHI Europe, signaling a serious commitment to additive manufacturing for high-performance applications.

Why E-Beam Matters for Turbines

Electron beam melting offers distinct advantages for aerospace components. The process operates in a vacuum with high energy density, enabling the fabrication of novel high-temperature materials that are difficult or impossible to process with laser-based systems.

According to Dr. Rachel Jennings, Head of Advanced Technology Development at IHI Europe: "Freemelt’s open platform enables us to push the boundaries of what is possible in high-temperature materials. It gives us the flexibility to experiment with small batches of novel alloys cost-effectively and at speed—something rarely achievable with conventional additive systems."

Targeting Gamma Titanium Aluminides

IHI is particularly interested in gamma titanium aluminides (TiAl)—lightweight replacements for traditional superalloys in turbo machinery. These materials offer excellent high-creep resistance up to 750°C while reducing component weight by up to half compared to Inconel.

The company is also researching proprietary IHI TiAl 823, an alloy designed specifically for low-pressure turbine blades. Additive manufacturing allows IHI to produce these specialized alloys more quickly and cost-effectively than traditional casting or forging methods.

Collaboration with Research Partners

IHI is working with Tohoku University and CEIT to advance powder modification and atomization techniques. “Work on powder modification and atomization techniques has shown promising results in improving conductivity and process stability, paving the way for broader applications across multiple AM processes,” according to IHI.

The partnership model reflects Freemelt’s philosophy of co-development with customers, providing access to parameters and settings that would be locked on proprietary industrial systems.

What This Means

IHI’s investment represents a significant validation of electron-beam AM for aerospace applications. By developing custom alloys for specific turbine components, IHI could gain a competitive edge in jet engine manufacturing—where even small improvements in weight or performance translate to billions of dollars in value.

The move also highlights how traditional aerospace manufacturers are moving beyond prototyping with AM and toward production of flight-critical components using specialized materials.