Speaker
Description
Producing complex multi-material components using conventional technologies is challenging, time-consuming, and often uneconomical due to additional manufacturing steps and increased costs. Multi-material powder bed fusion of metals using a laser beam (MM PBF-LB/M) opens up new possibilities for processing several materials in a single manufacturing step and can significantly enhance functionality and lightweight potential. The processability of two materials using PBF-LB/M has already been demonstrated for the combination of the copper alloy CW106C (CuCr1Zr) and tool steel 1.2709 (X3NiCoMoTi18-9-5). Defects in the transition zone of the materials, such as pores and cracks, could be influenced and reduced by adjusting process-related parameters. The application for a linear particle accelerator (linac) has been demonstrated. Compared with conventional manufacturing techniques, which often restrict the use of linacs due to the high investment costs, MM PBF-LB/M makes it possible to use 1.2709 for the vacuum flanges and improve structural stability while incorporating a CW106C inner structure for the basic functionality. The elimination of O-rings enabled by the novel CF knife flanges demonstrates the potential of multi-material components for linac applications. Improving the transition zones of already investigated material combinations, as well as processing novel combinations, is the subject of current research and will be discussed in this talk.