2025 SMSI Bannerklein

C6.1 - Function-Oriented Measurements of Micro Gears for Lifetime Evaluation

Event
AMA Conferences 2015
2015-05-19 - 2015-05-21
Nürnberg, Germany
Band
Proceedings SENSOR 2015
Chapter
C6 - Geometrial Measurements
Author(s)
B. Haefner, G. Lanza - Karlsruhe Institute of Technology (KIT), Karlsruhe (Germany)
Pages
441 - 446
DOI
10.5162/sensor2015/C6.1
ISBN
978-3-9813484-8-4
Price
free

Abstract

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.

Download