Öz
Powder injection molding (PIM) is an ideal technique for the production of precision geometry parts from metal and ceramic powders. In PIM method, a moving core system is needed to obtain screw geometry inside the part. However, making this system is both difficult and time-consuming. In this study, the internal screw geometry in the part has been tried to be obtained with the insert. For this, the part was produced by injecting 316L stainless steel feedstock into the mold, then a hole was drilled with a suitable drill and the M4 screw was pulled. Screw geometry inserts to be placed in the part are coated with hexagonal boron nitride and chrome resistant to high temperature. Thus, it is aimed to prevent the diffusion of the screw geometry in the feedstock area with the insert. The samples prepared were sintered at two different sintering temperatures (1260 °C - 1340 °C) and time (30-90 minutes). In the study, the effect of intermediate layers applied on the insert on screw geometry was investigated. As a result of the experiments, it was determined that hexagonal boron nitride and chromium interlayers on the screwed insert did not prevent diffusion.