3D Manufacturing method of wax casting patterns using 3D printing

摘要

A method of manufacturing a wax casting pattern using 3D printing is provided. The present invention. Manufacturing a polymer mold having a cooling channel therein by using 3D printing technology; A step of modifying the surface of the polymer mold to have a surface roughness of 12.5 μm Ra or less, a surface energy of 65 mN/m or less, and a hardness of 40 Hs or more; Injecting molten wax into the surface-modified polymer mold and then cooling the molten wax to inject a wax pattern; And a process of taking out the wax pattern; including, when the wax pattern is injected, controlling the temperature of the movable mold in which the take-out pin is located to be kept 3 to 20°C lower than the temperature of the fixed-side mold in which the take-out pin is not located. It relates to a method of manufacturing a wax casting pattern using a polymer mold manufactured using 3D printing, characterized in that.