Multilayer sintering and cladding of metal powders for fast prototyping

摘要

Process parameters of multilayer sintering and cladding of the Fe-Cr, Al-Ni, bronze B10 and stellite 6 alloys powders and also pure Sn and Cu powders are experimentally investigated. The 3-D structures are prepared trace-on-trace by remelting of the previously deposited powder layers (sintering) or of the powder injected into the processing zone through a nozzle (cladding). The processes lead to the efficient formation of multilayer structures. Results of microanalysis confirm the expected mechanical properties, low porosity and highly homogeneous structure of the multilayers. For the B10 clads of 1 mm width and 0,6 mm in height produced at velocities of 1 m/min the process efficiency of about 5percent is obtained.