Authors:
Philipp Scholzen (1), Michael Andersson (2)
1- Höganäs Germany GmbH, Germany
2- Höganäs AB, Sweden
Abstract:
The powder metallurgical (PM) process chain is a great opportunity for gear manufacturing regarding both material and energy consumption when compared to the conventional gear production. However, the remaining porosity after pressing and sintering results in a lower load capacity of the tooth flank and tooth root. Therefore, PM gears for high performance applications are surface densified to increase the density of the surface of the tooth.
This paper presents a new general approach of modelling the surface densification rolling process of PM gears. Using the finite element analysis, the material behavior, geometry, and process kinematics are modelled. The method leads to a prediction of the densification profile as well as geometry and can be used as a tool to optimize the rolling process. The results are evaluated and discussed in relation to the process parameters and material behavior.
DOI:
https://doi.org/10.59499/EP246278535
