Authors:
Frederik Tegeder (1), Sandra Wieland (2), Julius Eckel (2), Lea Reineke (2), Christoph Broeckmann (1)
1- Institute for Materials Applications in Mechanical Engineering (IWM), Aachen
2- Fraunhofer Institute for Manufacturing Technology and Applied Materials Research (IFAM), Bremen
Abstract:
Additive manufacturing offers numerous possibilities for toolmaking, such as the integration of internal cooling structures. Another important aspect is minimizing the necessary post-processing steps through near-net shape manufacturing, which allows for significant cost savings, particularly with hard-to-machine carbide-rich tool steels. Previous research projects have examined processing using laser-based methods (PBF-LB/M). Due to locally high cooling rates and associated residual stresses, cracks often occur in high-strength tool steels.
In this study, the cold work steel AISI A11 X245VCrMo10-5-1 was successfully fabricated using Metal Binder Jetting (MBJ) and sintered under two different conditions. The resulting microstructure was examined to determine a correlation between the sintering conditions and mechanical properties. The mechanical properties are compared with those from the conventional manufacturing route. The study demonstrates that the production of tools from high-strength tool steels using MBJ represents a promising alternative to the conventional manufacturing route.
DOI:
https://doi.org/10.59499/EP246281685
