Abstract
Selective laser melting method is a technology of 3D fabrication by repeating the process that laser is irradiated on the metal powder selectively for the production of a thin sheet. SLM method is a promising technology for dies manufacturing. In the present study, SKD11 powder with an average particle size of 9.6^m was used and the influence of working conditions such as laser power and pulse frequency for mechanical properties were investigated. From the experimental results, it is obtained that the relative density is about 70%, and micro-Vickers hardness is 580Hv that is about 80% of bulk one. The fabricated model is 0.5mm in width and 0.2mm in height larger than estimated ones.
