TETMET introduces ASLM metal lattice process with 90% energy savings, opens Amsterdam facility

French startup TETMET has unveiled Adaptive Spatial Lattice Manufacturing (ASLM), a novel metal lattice production process that combines AI-driven design software, robotic fiber-laser spot welding, and solid metal rod feedstock. The company claims energy savings of up to 90% compared to conventional methods, with at least 40% less material consumption and feedstock embodied energy three times lower than metal AM powders. TETMET recently opened its first vertically integrated production facility at SEGRO Park Amsterdam Airport in Hoofddorp, featuring a 12 x 3 x 3 meter production platform to demonstrate ASLM for aerospace, automotive, and defense applications. Founded in 2023 in Paris, the company targets large-scale lightweight structures including airplane seats, boat hulls, and solar frames, with future applications in in-space assembly and manufacturing (ISAM).

This development sits at the intersection of two important AM industry dynamics: the push toward energy-efficient metal production and the growing demand for lattice structures in serial applications. ASLM occupies a distinct position relative to existing metal AM processes — it is not competing with LPBF for fine-feature resolution or with DED for near-net-shape repair, but rather targets a gap between wire-arc AM and laser-DED for large, open-lattice geometries where energy efficiency and material savings are primary drivers. TETMET's own sustainability report claims 99.7% energy savings versus laser-DED and 88.6% versus WAAM for steel production, figures that, if independently verified, would represent a meaningful shift in the energy profile of large-scale metal part manufacturing. The company's focus on ISAM also aligns with growing defense and space agency interest in on-orbit fabrication, though that application remains years from commercial deployment.

TETMET's immediate challenge is moving from a single demonstration platform to repeatable, qualified production across multiple industries. The 12-meter build envelope is notable for large-scale applications but will require customers to redesign parts specifically for rod-based lattice geometries rather than traditional solid or powder-based approaches. For buyers evaluating lightweight metal structures, ASLM offers a fundamentally different cost-energy equation than existing AM processes, but the company must now prove production reliability, material consistency across alloys beyond steel, and integration with existing certification pathways in aerospace and defense. The Amsterdam facility provides a visible proof point, but the real test will be whether TETMET can convert demonstration interest into production contracts within the next 12-18 months.