Low-pressure die casting of magnesium alloy AM50: Response to process parameters

Low-pressure die casting (LPDC) process has been successfully used to produce sound magnesium alloy AM50 castings. The influence of process parameters: filling time, pressure holding time, die temperature, holding pressure and casting temperature, on the mechanical properties, microstructure and density of LPDC castings were studied. The optimal process parameters for LPDC casting have been experimentally determined as follows: filling time 15–22 s, pressure holding time 8–12 s, die temperature 390–410 °C, casting temperature 705–710 °C and holding pressure 0.08 MPa. The mechanical properties of the experimental part under the optimal process conditions are: yield strength (YS) 57.5 MPa, ultimate tensile strength (UTS) 193.8 Mpa and elongation 9.1%.