This study examined the effects of material combination and joint-shaped interfaces of metal AM parts on run and erosion in a casting joint technology that uses metal AM parts joint-shaped interfaces. The bonding conditions were observed for cones, triangular grooves, arches, spheres, taper holes, and lattice structures in a combination of bronze AM parts-AC4C, maraging steel AM parts-CAC406 and maraging steel-FCD. As a result, it was found that for maraging steel AM parts-CAC406 and maraging steel AM parts-FCD, the molding material and casting material bonded well at joint-shaped interfaces in cones, triangular grooves, arches and spheres. Maraging steel AM parts-CAC406 were found to be joined by brazing. On the other hand, maraging steel AM parts-FCD were joined by fusion joining at interfacial reaction layers due to melting of the surface of the shaped material and directional solidification. For bronze AM parts-AC4C, the joint-shaped interfaces examined in this study showed that the surface of the joint-shaped interfaces and the cast material did not bond well due to poor run and wettability. In addition, simulation was also a carried out in study on manufacturing samples of mesh products made by the cast-in metal technique using metal AM parts with joint-shaped interfaces.