08/09/2026 – Wire manufacturing
Rolling of ultra-fine flat wires
Flat wires in the micrometer range mark a milestone in cold bulk metal forming. In a joint development and innovation project, Roder Engineering AG and Stamm Feindrahtwerk (a Bender Wire Group company) succeeded in rolling a metallic wire down to a thickness below 2µm. The breakthrough was enabled by an exceptionally pure material, a tailored microstructure, and maximum precision in the rolling process.
SEM image of the rolled flat wire with a measured thickness of 1.84µm. © Stamm Feindrahtwerk
Size comparison: human hair (Ø ~ 70µm), initial round wire (Ø ~ 11µm), and rolled flat wire (~ 2 × 39µm). © Stamm Feindrahtwerke
SEM image of the rolled flat wire with a measured thickness of 1.84µm. © Stamm Feindrahtwerk