Gas quenching and modelling of steel components with increased demands due to electrification (GASELL)

Important results from the project

The project developed an integrated working methodology to increase the understanding of low-pressure carburizing followed by gas quenching. Experimental measurements of gas flow and cooling were combined with fluid dynamic simulations to describe the flow pattern in the cooling chamber during the cooling process. These results, together with experimentally generated material data, were then used as input data in heat treatment simulations to investigate position-dependent shape changes.

Expected long term effects

The project demonstrated the complexity of the process and the challenge of developing connected digital twins for the cooling process in a cold chamber followed by a position-specific heat treatment for an individual component. However, several interesting results emerged within the project and demonstrated the potential of the developed working methodology. Nevertheless, it is clear that a deeper analysis is required before more results become directly applicable in industry.

Approach and implementation

The project was based on activities that were divided into the areas of flow measurements and simulations, material data and models, and heat treatment simulations and verification. The project developed a working methodology where these areas were linked and used experimentally generated and verified data within the project as far as possible. This provided greater control and opportunities for iterative work, while at the same time the anchoring to real production was clear.