Investigation of the material combination 20MnCr5 and X45CrSi9-3 in the Tailored Forming of shafts with bearing seats

Abstract The Tailored Forming process chain is used to manufacture hybrid components and consists of a joining or Additive Manufacturing for various materials (e.g. deposition welding), subsequent hot forming, machining heat treatment. In this way, can be produced with adapted the load case. For paper, shafts are by welding cladding made X45CrSi9-3 onto workpiece from 20MnCr5. then formed means cross-wedge rolling. It investigated, how thickness type cooling after forming (in air in water) affect properties cladding. without layer separation. However, slight core loosening occurres area bearing seat due Mannesmann effect. microhardness only slightly effected strategy, while base material significantly higher water cooled shafts. microstructure both strategies mainly martensite. material, results ferritic grains ferrite-pearlite. Quenching containing