EFFECTS OF BUILDING ORIENTATION ON THERMAL CHARACTERISTICS OF AlSi10Mg STRUCTURE MANUFACTURED BY SELECTIVE LASER MELTING PROCESS

초록

SLM (Selected Laser Melting) process is a representative technology of powder bed type 3D printing for metal handling. In this study, thermal characteristics of aluminum alloy (AlSi10Mg) specimens were investigated experimentally under the processing condition of various building orientations of specimen (polar angles) as key parameter of SLM process. From the experimental results, the thermal properties showed anisotropic with different building orientation. It is considered that the reason why the thermal property value changes due to the change of the process condition in the SLM process depends on the characteristics of Si material distributed at the interface of the melt pool instantaneously generated by the laser.