We’ll be honest: when a company claims it has cracked support-free metal additive manufacturing for complex titanium aerospace components, within a standard LPBF environment, we pay attention.
South Korean aerospace company INNOSPACE recently announced it has become the first in the country to commercialize a support-free metal AM process for high-precision titanium parts, targeting satellite propellant tanks and defense components. The reported results are striking: production time cut by 2.5x, costs reduced by up to 40%, and, perhaps most importantly, significantly enhanced design freedom for curved and dome-shaped geometries that conventional LPBF processes struggle with.
As you may know, titanium is notoriously prone to thermal distortion, and eliminating support structures without compromising structural integrity requires exceptionally sophisticated process control.
INNOSPACE claims to have solved this by leveraging process knowledge accumulated through its HANBIT launch vehicle program.
Interestingly, those who have followed Velo3D’s trajectory will remember the ambition behind the Sapphire platform (low-angle printing, minimal supports, geometric freedom for propulsion components).
Velo3D attracted serious aerospace customers, flew titanium parts in Boom Supersonic’s XB-1, and built a compelling narrative around the idea that support-free printing was the enabler of next-generation rocket and satellite hardware. The company’s subsequent financial difficulties don’t diminish the validity of the technical vision. If anything, INNOSPACE’s announcement suggests that vision was well-placed.
The difference, for now, is context. INNOSPACE is commercializing this within a specific industrial ecosystem, backed by validated real-world supply to a domestic aerospace customer in late 2024.
Whether this translates beyond South Korea’s defense and space sector remains to be seen. But in a market projected to grow from $21.9B to over $145B by 2034, being first to commercialize a high-barrier process, in titanium, for aerospace, draws attention.
The question now is: what happens next?
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