Nikon SLM Solutions and Bosch 3D-print one-piece aluminium V8 engine block, advancing metal AM for automotive

Nikon SLM Solutions and Bosch Industry Consulting have jointly manufactured a complete V8 engine block as a single aluminium component using laser powder bed fusion (LPBF). The part was produced in AlSi10Mg aluminium alloy on Nikon SLM's NXG XII 600 multi-laser system at the Bosch Additive Solution Center in Nuremberg, Germany. The one-piece design incorporates internal cooling channels, lightweight structural sections, and integrated features that would traditionally require multiple separate cast components, with material placed only where structural performance required it to reduce overall weight.

This project demonstrates how metal AM is beginning to challenge conventional casting for complex, high-performance automotive components. The automotive vertical has historically been selective and tooling-heavy in its AM adoption, with narrow serial-part use outside of motorsport and luxury applications. By removing the need for casting tooling and lengthy validation cycles, LPBF enables direct digital production with design modifications that incur no tooling-change cost. The collaboration pairs Bosch's automotive manufacturing expertise with Nikon SLM's production-scale platform and materials qualification capabilities, addressing the supplier collaboration gap that has limited wider automotive AM adoption. The engine block's weight reduction versus cast equivalents positions it squarely for motorsport and high-performance applications, where the cost premium of AM is more readily justified.

For Nikon SLM Solutions, this is a credible reference case that moves beyond demo-cell theatrics into repeatable production logic. The practical next step is demonstrating that the NXG XII 600 can maintain consistent quality across a production run of engine blocks, not just a single build. Automotive buyers evaluating this approach should focus on total cost per part including post-processing and qualification, not just the elimination of tooling expense. The project reinforces that metal AM's path into automotive production runs through application-specific partnerships rather than generic machine capability claims.