Authors:
Philipp Scholzen (Höganäs Germany Gmbh, Germany)
Michael Andersson (Höganäs AB, Sweden)
Abstract:
The powder metallurgical (PM) process chain is a great opportunity for gear manufacturing regarding both material and energy consumption compared to conventional wrought steel gear production and could potentially also reduce manufacturing cost. 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 tooth surface.This paper presents a method for modelling the surface densification rolling process and an experimental validation of the model. The results are evaluated and discussed regarding geometry, process parameters and material behavior. With the validated model, a method for process design is developed and presented, and it is shown how the process development time can be shortened through simulation.
DOI:
https://doi.org/10.59499/EP256767847
