Research into laser processing of different metals has enabled Solid Freeform Fabrication (SFF)
processes to produce parts for a wide variety of applications. However, less focus has been made
on the processing of precious metals. Currently little research has been reported on the
processing of precious metals and alloys using the Selective Laser Melting (SLM) process. Here
we present an initial investigation into the processing of 24 carat gold (Au) powder using a SLM
system. Gold powder was tested for apparent density, tap density, particle shape and size
distribution. A quality check of the specimen was carried out using a Scanning Electron
Microscope (SEM) for sinterability and occurrence of porosity. Significant processing
parameters were also identified.Mechanical Engineerin