2018 Volume 65 Issue 11 Pages 730-734
Diesel nozzle tips with multiple inwardly tapered holes (SCM415) and 3Y-zirconia artificial teeth were made by a high-speed centrifugal compaction process (HCP) combined with 3D printed resin cores or molds. The resin cores and molds featured designed shapes and the green compacts were eliminated by heating in the process. We used an LED laser 3D printer because of its accurate shape transferability. However, UV resins commonly used for this type of 3D printer are of a thermosetting type and difficult to eliminate by heating. Therefore in the present study we introduced a wax-based UV resin into the 3D printer. Changing the resin from acrylic (as used in previous studies) to a wax-based resin improved the quality of the products. Namely, the crack introduction, carbon residue in the products and sintering hindrance were considerably reduced. Low thermal expansion and complete evaporation by thermal decomposition of the wax-based UV resin helped to diminish the above-mentioned issues.
