Investigation of the influence of material and sheet thickness on a three-stage process chain for cold forming of micro gears with a module of 0.1 mm

In many industries, there is a trend towards miniaturization of technical components, such as drive systems, which enable the solution high-precision positioning tasks because their low volume and high dynamics. Geared micro parts are currently mainly produced by cutting LIGA processes, but in mass production cold forming offers ecological economic benefits. However, gears restricted to lower module limit m = 0.2 mm due tool stresses, size effects handling difficulties. To solve these challenges, this contribution three-stage process chain for manufacturing (m 0.1 mm) investigated. first stage, pin wheel blank extruded from sheet metal, geared subsequently lateral extrusion. Finally, gear separated shear cutting. The aim study demonstrate applicability materials Cu-OFE CuZn30. addition, influence thickness, has major impact on material efficiency, analyzed. geometrical mechanical component properties well machine data evaluated assess variables.