This work presents an experimental study of friction surfacing (FS) used as an additive manufacturing (AM) technique. Coating layers are generated through friction surfacing by severe plastic deformation at process temperatures in the solid state regime. Through a combination of FS and AM, named Friction Surfacing Layer Deposition (FSLD), half-finished products as layered aluminium bodies are manufactured. Microstructure and mechanical properties are investigated through optical and scanning electron microscopy as well as micro flat tensile , cross tension and micro hardness testing, respectively.
The microstructure of the FSLD half-finished products reveal a homogenous, very fine grain microstructure in the main bonding area. The mechanical properties are in the range of the respective base materials. No discernible anisotropy is detected in the deposited structure. The resulting microstructure and mechanical properties as well as suggestions for possible future application of FSLD are evaluated and discussed.