Authors:
Philipp Scholzen (WZL RWTH Aachen, Germany),
Jens Brimmers (WZL RWTH Aachen, Germany)
Abstract:
The powder metallurgical manufacturing of gears offers a promising opportunity in terms of reducing the noise emission and increasing the power density. Sintered gears weigh less than conventional gears and potentially have a better noise-vibration-harshness behavior, due to the remaining porosity. However, the potential of sintered gears for highly loaded applications is not fully utilized yet. Six variants of surface densified and case-hardened sintered gears from Astaloy Mo85 were tested to analyze the impact of the densification and case hardening depths on both the tooth root and flank load bearing capacities. A densification of the tooth flanks during operation was identified. The results were presented at EuroPM2021. Now, further analyses are carried out on the stress distribution in the densified tooth. Furthermore, the influence of the deformation during operation on the NVH behavior is investigated by means of transmission error and structure borne noise emission.
DOI:
https://doi.org/10.59499/WP225372058