C6.1 - Function-Oriented Measurements of Micro Gears for Lifetime Evaluation
- AMA Conferences 2015
2015-05-19 - 2015-05-21
- Proceedings SENSOR 2015
- C6 - Geometrial Measurements
- B. Haefner, G. Lanza - Karlsruhe Institute of Technology (KIT), Karlsruhe (Germany)
- 441 - 446
Nowadays, micro transmissions are used in combination with micro motors in manifold industrial applications, e.g. in the medical industry in actively controlled prostheses. Micro transmissions consist of micro gears with a module < 200 μm. The main function of micro gears is a proper operation over the required lifetime. Lifetime evaluation is particularly important for micro gears, as the influence of geometric shape deviations is very large. Efficient production metrology is based on function-oriented measurements. Thus, in this article, a methodology is introduced to enable a function-oriented evaluation of micro gear measurements. For this purpose, high-precision 3D CMM measuring data are processed by finite element method (FEM) simulation to calculate the characteristic loads. These are correlated with experimental data of lifetime experiments.