Abstract
Producing metallic molds using Metal Laser Sintering combined with High Speed Milling can significantly reduce mold fabrication time. Nevertheless, a level difference in the cutting profile makes it difficult to fabricate high precision mold due to warpage. Although high density and low density lasering differentiation reduce the fabrication time, the introduction of ribs to replace this low density lasering will not only reduce the fabrication time but also improve the mold strength. This study explores on internal structures design possibilities that can improve mold strength and reduce fabrication time.